The Celestron 1.25” Eyepiece and Filter Kit is a great way to expand the functionality and enjoyment of your telescope. Inside the metal, foam-lined carry case you’ll find these accessories:

• 32 mm Plossl Eyepiece - 1.25”
• 17 mm Plossl Eyepiece - 1.25”
• 13 mm Plossl Eyepiece - 1.25”
• 8 mm Plossl Eyepiece - 1.25”
• 6 mm Plossl Eyepiece - 1.25”
• 2X Barlow Lens - 1.25”
• #80A Blue Filter - 1.25”
• #58A Green Filter - 1.25”
• #56 Light Green Filter - 1.25”
• #25 Red Filter - 1.25”
• #21 Orange Filter - 1.25”
• #12 Yellow Filter - 1.25”
• Moon Filter - 1.25”

Eyepieces - All five Plossl eyepieces can be used in any telescope with a 1.25” focuser. Each eyepiece features a four-element design with a 52º apparent field of view. The optics are fully multi-coated to improve light transmission and protect the optics. The 32 mm Plossl eyepiece offers a low power, wide field view in most telescopes, the 13 mm & 17 mm focal lengths are good medium-power oculars, and the 8 mm & 6 mm eyepieces provide high magnifications, great for the Moon and planets, especially when seeing conditions are good.

2X Barlow Lens - The included, and very versatile 2X Barlow doubles the magnification of any 1.25” eyepiece. Since this kit includes five (5) eyepieces, you will be able to use them with and without the Barlow, giving you a total of ten magnification options in all. Any other 1.25” eyepieces you already have will also work in this desirable accessory, giving you even more magnification choices. Remember, high magnifications do not always produce clear, sharp results, especially on evenings of poor or moderate seeing conditions. Experiment to find the magnifications that are best for your telescope on a particular night.

Filters - Colored filters can be used to bring out certain details on a planet’s surface or its cloud structure. All of the planetary filters included in the 1.25” Eyepiece & Accessory Kit, as well as the Moon filter, can be used on any 1.25” eyepiece with the proper filter threads, so they are very versatile. Just screw one onto your eyepiece of choice and slide it into the focuser.

The Moon filter is one of the first accessories most new amateur astronomers buy, and for good reason! It helps block out a portion of the light the Moon sends into your eyepiece so that you can see details better. You can also try this filter on Venus; it blocks enough glare so you can observe the planet’s phases more easily.

Metal Case: The sturdy metal carry case has die-cut foam inside to protect and cushion your accessories. Store each one in its appointed place when not in use and you’ll keep them looking and performing like new. The case is even large enough to carry a few extra accessories. Just pull out enough of the foam cubes to make a nest for your eyepiece, camera adapter, etc. A tight fit is better, so remove the least amount of foam possible before testing the fit. You can always remove more if you need to.

The Celestron T-Adapter-Barlow Lens Universal - 1.25'' can be used three ways; as a 2X Barlow for visual use, as a prime focus T-adapter, or as a “Barlowed” T-adapter to double the magnification.

Features:

1. As a 2X Barlow right out of the box. Insert any 1.25” eyepiece into the adapter to double the magnification, while retaining a comfortable eye relief of your eyepiece.
2. For prime focus photography. Unscrew the bottom section (glass element) to remove the Barlow and slide the chrome barrel into the telescope’s 1.25” focuser. Screw a T-Ring to the T Thread on top of the adapter. Attach to your DSLR or SLR camera.
3. As a barlowed T-adapter simply screw your T-Ring (sold separately) directly to the T-Thread and place into focuser. Good for imaging Planets to enlarge image.

Please note that some telescopes, especially “fast” refractors and Newtonians, may not have enough focus travel to allow the photographic image to come to focus when used in prime focus mode. In these instances, adding the Barlow to the T-Adapter will allow the telescope to reach focus.

In “Tele-Extended” mode, the Barlow doubles the focal length and f/ratio of your telescope, resulting in an image on the sensor or film plane that is twice the size of a prime focus image.

Prime focus and tele-extended photography are popular for short exposure images of terrestrial objects as well as celestial objects like the Moon.

Weight = 68 grams;

Length = 74mm;

Made in China.

Two-year manufacturer limited warranty.

Bintel Eyepiece Case Large

Eyepieces are a very important and large investment. The Bintel Eyepiece Case Large is the best way to protect them when they are not being used. Pluck foam allows you to arrange your eyepieces as you wish.

Can fit up to 8 x 2" eyepieces or up to 12 x 1.25" eyepieces or a combination of. eyepieces, filters, diagonals, and other astronomical accessories.

A sturdy aluminium construction for storing with metal corners will keep you eyepieces and other valuable accessories dry, clean and safe

Dimensions: 450mm x 320mm x 145mm.

The 24mm is designed to produce the largest true field possible in a 1-1/4" eyepiece.

Its 27mm field stop is the same as the 32mm Tele Vue Plössl.
The higher power darkens the sky background while the greater magnification yields more details on extended objects. Further, its light weight, comfortable 16mm eye relief, and tapered top instantly make the 24mm Panoptic the ideal eyepiece for getting the maximum field for binocular viewers. 

Review

This Sky & Telescope “Hot Product for 2003” is designed to produce the largest true field possible in a 1-1/4" eyepiece. (Its 27mm field stop is the same as the 32mm Tele Vue Plössl).

The higher power darkens the sky background while the greater magnification yields more details on extended objects. Further, its light weight (1/2 lb.), comfortable 15mm eye relief, and tapered top instantly make the 24mm Panoptic the ideal eyepiece for getting the maximum field for binocular viewers.

Great for emission and reflection nebulae, Supernova Remnants and large open star clusters. 

Check out the rest of the Panoptic range.

Specifications

Review

This is a very good medium to low power eyepiece for viewing smaller emission and reflection nebulae, open clusters and for resolving stars in many globular clusters.

It can be used for low power lunar observing or even the planets. The rubber grip give sure grip and makes it comfortable to use in cold weather.

The 17mm eye relief makes it very comfortable to use and is a great eyepiece to barlow.

The 25mm TeleVue Plössl was top-rated in a recent test report of 31 eyepieces in Sky & Telescope magazine as being the best in its focal length.

Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.

Specifications

TheTele Vue Plossl 32mm has been around for decades and is still one of the best eyepieces on the market.

With 22mm of eye relief it suits every observer, even with eye glasses the full field of view the Tele Vue Plossl 32mm offers is superb.

Great eyepiece for larger clusters and nebulae.

Crisp and sharp from edge to edge with the same true field of view as the 40mm Plossl but with higher magnification.

Edge blackend lenses and thread barrel to take standard 1.25" filters.

Everyone should own a Tele Vue Plossl 32mm at some stage in their astronomy life.

Televue's 32mm Plossl is a favourite for those wanting to upgrade to a quality low power eyepiece. Certainly one of the best simple eyepieces ever made.

Specifications

Focal length: 32mm
Barrel Diameter: 31.7mm (1.25")
Apparent Field: 50°
Eye relief: 22mm
Field Stop Diameter: 27mm
Weight: 180g

Review

This is a very good low power/wide field eyepiece for ideal or large open clusters, emission and reflection nebulae, or large extended objects that require a big field of view, perfect for scanning the Milky Way star clouds in Scorpius- Sagittarius from a dark sky site

The rubber grip gives sure grip and makes it comfortable to use in cold weather. As with all TeleVue eyepieces all edges are edge blackened.

This one of the Classic eyepieces to own offering improved edge-to-edge sharpness, and a wider and brighter field of view to the standard 25mm eyepiece that comes with most telescopes.. The 22mm of eye relief offers unvignetted viewing for eyeglass wearers.

It is parfocal with the shorter focal length Plossls.

The 32mm Plossl, with its larger 50 degree apparent field, will deliver the same true field as the 40mm but with higher magnification. Filter threads to fit your filters.

Specifications

The faster the focal ratio of your telescope, the greater your visual reward for using Tele Vue eyepieces. Tele Vue Plössls feature full multicoatings for greatest light transmission and contrast.

Blackened lens edges and internal anti-reflection threads tweak the last bit of contrast for maximum image detail. The sharper field focuses faint star light into perceptible points and allows those with undriven mounts to gaze longer before repositioning the image.

The 25mm, 20mm, 15mm, 11mm and 8mm Plössls round out the focal lengths for various observing from deep sky to planetary. They work best with Tele Vue Barlows or Powermates to effectively double the number of focal lengths in your collection.

Far superior to eyepieces usually provided as standard with most instruments.

Review

This is a very good medium power eyepiece for lunar observing, resolving globular clusters, picking up detail in the more compact emission and reflection nebulas, etc.

This 15mm focal length is a very good in between power eyepiece, filling the gap between the 25mm eyepiece that comes standard with most scopes and a high power eyepiece.

It has 10mm eye relief . Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.

Specifications 

The faster the focal ratio of your telescope, the greater your visual reward for using Tele Vue eyepieces. Tele Vue Plössls feature full multicoatings for greatest light transmission and contrast.

Blackened lens edges and internal anti-reflection threads tweak the last bit of contrast for maximum image detail. The sharper field focuses faint star light into perceptible points and allows those with undriven mounts to gaze longer before repositioning the image.

The 25mm, 20mm, 15mm, 11mm and 8mm Plössls round out the focal lengths for various observing from deep sky to planetary. They work best with Tele Vue Barlows or Powermates to effectively double the number of focal lengths in your collection.

Far superior to eyepieces usually provided as standard with most instruments.

Review

This is a very good medium high to high power eyepiece for resolving globular clusters, lunar and planetary detail, some smaller galaxies (depending on aperture).

It has 8mm of eye relief and so eyeglass wearers may wish to remove their spectacles.

This 11mm TeleVue Plössl was rated the best 10 -12mm Plossl in a recent test report of 31 eyepieces in Sky & Telescope magazine.

Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.

Tele Vue 11mm Plossl Specifications

The Tele Vue DeLite 9mm is one of the 3 newest additions in the DeLite series. Revealed at the NEAF conference in April 2016 the Tele Vue DeLite 9mm is sure to become a favourite in any eyepiece collection.

Available in 18.2, 15, 11, 9, 7 and 5mm focal lengths, the DeLite series is a delightful addition to Tele Vue's visionary line of eyepiece developments. Named DeLite because that best describes the viewing experience, the name also recognizes designer Paul Dellechiaie's work.

Tele Vue DeLite 9mm Specifications

Early reviews of the Tele Vue DeLite 62° Apparent Field Eyepieces

Excerpt from Tom Trusock's March 2016 review in Astronomy magazine.

Like any Tele Vue eyepiece, the Tele Vue DeLite 7mm produces images rich in detail and popping with contrast. The Tele Vue DeLite 7mm would make a great higher powered eyepiece in most cassegrain telescopes. With a generous 62° AFOV and 20mm eye-relief the viewing experience will be very comfortable.

Available in 18.2, 15, 11, 9, 7 and 5mm focal lengths, the DeLite series is a delightful addition to Tele Vue's visionary line of eyepiece developments. Named DeLite because that best describes the viewing experience, the name also recognises designer Paul Dellechiaie's work.

Tele Vue DeLite 7mm Specifications

Reviews

Nagler Type 5

With the 31mm, the unique 6-element design using four exotic glasses, maintains the contrast advancement of the Type 4s while achieving a true field area 82% larger than the 22mm Type 4!

Owners of fast Dobsonian/Newtonians can enjoy a larger true field, free of secondary shadowing, than ever before. For example, a 12.5", f/4.5 scope with a Paracorr will deliver a 1.5 degree field (3 Moon diameters), at 53x with a 6mm exit pupil.

Why Are There 4 Types of Naglers?

To achieve various features requires different design tradeoffs and thus the different types of Nagler eyepieces. The largest possible true fields of view for an 82°' apparent field of view in both 2" and 1¼" formats are achieved with the Nagler Type 5 series, with focal lengths of 31 and 16 mm

Compact size in medium to short focal lengths is achieved with the Nagler Type 6, available in focal lengths of 13, 11, 9, 7, 5, and 3.5 mm.

To achieve eyeglass friendly eye relief without excessively large and heavy designs requires the other two Nagler types. The 22mm Type 4 and 19, 14, 9, 5.5 mm Type 7 with their long eye relief feature adjustable height eyeguards and are best for eyeglass wearers or Dioptrx™ users.

Specifications

The faster the focal ratio of your telescope, the greater your visual reward for using Tele Vue eyepieces. Tele Vue Plössls feature full multicoatings for greatest light transmission and contrast.

Blackened lens edges and internal anti-reflection threads tweak the last bit of contrast for maximum image detail. The sharper field focuses faint star light into perceptible points and allows those with undriven mounts to gaze longer before repositioning the image.

The 25mm, 20mm, 15mm, 11mm and 8mm Plössls round out the focal lengths for various observing from deep sky to planetary. They work best with Tele Vue Barlows or Powermates to effectively double the number of focal lengths in your collection.

Far superior to eyepieces usually provided as standard with most instruments.

Review

This is a very good medium high to high power eyepiece for observing lunar and planetary detail, resolving globular clusters, small planetary nebulae .

It has only 6mm of eye relief that will limit the field for eyeglass wearers.

This 8mm TeleVue Plössl was rated the best 8mm Plossl in a recent test report of 31 eyepieces in Sky & Telescope magazine.

Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.

Tele Vue 8mm Plossl Specifications

Tele Vue Ethos 21mm Specifications

Introduced at the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure Tele Vue quality. The field area of this new eyepiece is more than 50% larger than an 82° field. The Tele Vue Ethos is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.

Review

An excellent premium quality low power eyepiece. It is ideal for observing large emission and reflection nebulae, Supernova Remnants and large open star clusters.

It is very well suited to large f/4.5 Dobsonians giving 6mm exit pupil. Is a great low power eyepiece in short focal length refractors, for example, with the TV 102, it gives 31x and a true field over 130 arc minutes.

It has 16mm of eye relief and can be used by eyeglass wearers with no vignetting of the field. Images are sharp right to the edge of the field.

This is a lot of eyepiece so its heavy weight may cause some minor concern in Dobsonians. One of the favourite eyepieces of Bintel's Technicians.

Check out the rest of the Panoptic range.

Specifications

Tele Vue's Delos 10mm is a short to medium focal length eyepiece that will deliver amazing detail. Importantly though it still achieves a generous 20mm eye-relief and wide 72° apparent field of view. Amazing in well corrected refractors with short to medium focal lengths. The Delos 10mm is suitable for any focal length telescope. Some of the shorter focal length Delos eyepieces may provide too much power in long focal length Cassegrains. For example in an 8" f/10 telescope the 10mm Delos provides 200x magnification with eye-relief galore!

There is a good chance the TeleVue Delos will be seen as the ultimate combination of performance, viewing comfort and price. If you've been keeping a spot in your case for an affordable, premium eyepiece, you should consider a Delos - you won't be disappointed! Lessons learned from the tremendously successful Ethos series were applied to develop this long eye-relief, 72° apparent field of view eyepiece line.

The Delos 10mm for a standard 1.25" barrel diameter making it suitable for almost any telescope or even bino-viewers!

Tele Vue Delos 10mm - Specifications

• Model # EDL-10.0
• Focal Length 10mm
• Barrel Size 1.25"
• Apparent Field of View 72°
• Eye Relief 20mm
• Weight 408g
• Field Stop 12.7mm

Background:

In 2011 Tele Vue introduced the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference-standard performance for any visual application.

The Delos was conceived as a narrower field Ethos. Reducing the field to 72° allowed freedom to increase eye-relief, while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect f θ (theta) distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece.

Contrast is further enhanced with a new, continuously adjustable height eyeguard system that can be locked in any position. Since the Delos eye-lens measures a quite large 35mm in diameter, preventing stray light from reflecting off the first surface and extraneous light from entering your eye pays off in a nice increase in perceived contrast. The eyeguard's sliding action allows for positioning the soft rubber eyeguard at the ideal height to suit the observer's preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrx users.

Awards - Delos 6mm and 10mm

Reviews

Sky & Telescope Hot New Product for 2012 Award

Review of the 6mm & 10mm Delos from Astronomy Magazine, December 2011

Excerpts from Sky & Telescope, June 2011, review of Delos eyepieces:

WHAT WE LIKE:

Essentially perfect optics
"Immersive" observation experience

WHAT WE DON'T LIKE:

I spent several nights viewing the Moon, Saturn, stars and nebulae with a variety of telescopes … .

The Delos eyepieces are "easy to look through … . They have flat fields, delivering absolute pinpoint stars from edge to edge with no hint of color aberration. The view, especially during the daytime, is very pure with no noticeable color tint. And there wasn't a hint of ghosts or reflections, even with the brightest stars".

"What caught me a bit off guard, however, was something that's best described as the observing experience. It was distinctly pleasurable."

"I have the sensation of looking out of a circular window rather than into an eyepiece."

— di Cicco, Dennis. "Tele Vue's New Delos Eyepieces". Sky & Telescope (June 2011). p. 58, 59.

The Luminos series eyepieces offer a wide 82º field of view in both high power and low power models, allowing you to make the most of your telescope, whether you own a short, fast refractor or a Celestron EdgeHD telescope. The optical set consists of six or seven elements (depending on the model) and is fully multi-coated for crisp, sharp views. All six Luminos eyepieces are parfocal, which means you can switch out eyepieces during observing sessions with little or no additional focusing required.

The Luminos eyepiece body is made of polished and anodized aluminum. A rubber grip runs around the equator of the eyepiece, giving you a secure grip and an easy method for raising and lowering the retractable eyecup. Simply twist the rubber grip to adjust the height of the eyecup. The insert barrel is threaded to accept filters.

Review This is a very good medium power eyepiece for lunar observing, resolving globular clusters, picking up detail in emission and reflection nebulas, etc.

The rubber grip give sure grip and makes it comfortable to use in cold weather.

The comfortable 14mm eye-relief is suitable for those wearing glasses .

Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.

Specifications 

Tele Vue Ethos 13mm Specifications

Introduced at the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure Tele Vue quality. The field area of this new eyepiece is more than 50% larger than an 82° field. The Tele Vue Ethos is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.

We invited NEAF attendees to take a look and see the universe the way we think it was meant to be experienced, with a field of view incredibly wide and sharp! We were very pleased indeed by the response and validation of our design goals.

Backordered currently 3-4 Weeks

Related Links

•Eyepiece Distortion
Technical reference on rectilinear and angular magnification distortion.

•Majesty Factor
Compare eyepieces by quantifying contrast, power, and apparent field.

Nagler Type 6

The Tele Vue DeLite 5mm is one of the 3 newest additions in the DeLite series. Revealed at the NEAF conference in April 2016 the Tele Vue DeLite 5mm is sure to become a favourite in any eyepiece collection.

Available in 18.2, 15, 11, 9, 7 and 5mm focal lengths, the DeLite series is a delightful addition to Tele Vue's visionary line of eyepiece developments. Named DeLite because that best describes the viewing experience, the name also recognizes designer Paul Dellechiaie's work. The Tele Vue DeLite 5mm is the shortest focal length available in the series and would be a great choice for planetary and lunar observing.

Tele Vue DeLite 5mm Specifications

Early reviews of the Tele Vue DeLite 62° Apparent Field Eyepieces

The Nagler eyepiece was revolutionary as the first eyepiece to deliver breath taking wide fields of view while still providing sharp images from edge to edge. In contrast to the objective of your telescope which rarely covers an image angle of more than 2°, Nagler eyepieces remain sharp over an angle of 82° to truly inspire a spacewalk vista. For this reason extreme care must be taken to correct for aberrations - especially away from the optical axis.

Al Nagler has refined this series of eyepieces taking advantage of different exotic glasses and improved coatings to deliver quite simply the best performance you can get out of an eyepiece. While other manufacturers may boast impressive field sizes, Tele Vue's philosophy of inspiring spacewalk vistas always keeps their optical devices well ahead of the pack.

Specifications

The Tele Vue DeLite 11mm is a versatile medium focal length eyepiece. Generally eyepieces in the 9-15mm focal length range are excellent all-rounders. The DeLite 11mm could well be an ideal choice as your main high quality eyepiece.

Available in 18.2, 15, 11, 9, 7 and 5mm focal lengths, the DeLite series is a delightful addition to Tele Vue's visionary line of eyepiece developments. Named DeLite because that best describes the viewing experience, the name also recognizes designer Paul Dellechiaie's work.

Tele Vue DeLite 11mm Specifications

Early reviews of the Tele Vue DeLite 62° Apparent Field Eyepieces

The Bintel Superview Camera Projection eyepieces are one of the simplest ways to couple your DSLR to a telescope. The top section of the eyepiece unscrews allowing an M57 to M42 adapter to be fitted. The M42 T-thread can then allow the appropriate T-Ring to be attached and thus adapts to your DSLR camera.

M57 to M42 adapter and T-Rings sold separately.

https://www.bintel.com.au/product/bintel-m57-m42-t-adapter/

Review

This is a very good low power/wide field eyepiece. With 43 degree apparent field it provides the widest field possible from a 1.25” eyepiece. It's ideal for large open clusters, emission and reflection nebulae, large and faint nebula remnants such as the Vela Supernova Remnant and galaxy clusters.

The rubber grip gives sure grip and makes it comfortable to use in cold weather.. Better suited to the longer focal ratios of refractors, Schmidt-Cassegrains, and Maksutov-Cassegrains than it is to reflectors with focal ratios shorter than f/6.

In scopes that are longer than f/6, it will give you the widest and brightest field possible from a 1.25” focuser telescope.

The 28mm of eye relief makes it a good choice for eyeglasses wearers. It' s parfocal with the shorter focal length Plossls. Filter threads to fit your filters and blackened lens edges.

Specifications

Tele Vue's Delos 14mm is a medium focal length eyepiece that creates an “immersive viewing experience”. With its generous 20mm eye-relief and wide 72° apparent field of view you will be hard pressed to find another eyepiece that is such a pleasure to look through. Amazing wide fields of view in well corrected refractors with short to medium focal lengths (over 1° FOV up to 1000mm focal length). While some of the shorter focal length Delos eyepieces may provide too much power in long focal length Cassegrains, the Delos 14mm is suitable for any focal length telescope.

There is a good chance the TeleVue Delos will be seen as the ultimate combination of performance, viewing comfort and price. If you've been keeping a spot in your case for an affordable, premium eyepiece, you should consider a Delos - you won't be disappointed! Lessons learned from the tremendously successful Ethos series were applied to develop this long eye-relief, 72° apparent field of view eyepiece line.

The Delos 14mm has standard a 1.25" barrel making it suitable for almost any telescope or even bino-viewers!

Tele Vue Delos 14mm - Specifications

• Model # EDL-14.0
• Focal Length 14mm
• Barrel Size 1.25"
• Apparent Field of View 72°
• Eye Relief 20mm
• Weight 408g
• Field Stop 17.3mm

Background:

In 2011 Tele Vue introduced the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference-standard performance for any visual application.

The Delos was conceived as a narrower field Ethos. Reducing the field to 72° allowed freedom to increase eye-relief, while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect f θ (theta) distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece.

Contrast is further enhanced with a new, continuously adjustable height eyeguard system that can be locked in any position. Since the Delos eye-lens measures a quite large 35mm in diameter, preventing stray light from reflecting off the first surface and extraneous light from entering your eye pays off in a nice increase in perceived contrast. The eyeguard's sliding action allows for positioning the soft rubber eyeguard at the ideal height to suit the observer's preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrx users.

Awards - Delos 6mm and 10mm

Reviews

Sky & Telescope Hot New Product for 2012 Award

Review of the 6mm & 10mm Delos from Astronomy Magazine, December 2011

Excerpts from Sky & Telescope, June 2011, review of Delos eyepieces:

WHAT WE LIKE:

Essentially perfect optics
"Immersive" observation experience

WHAT WE DON'T LIKE:

I spent several nights viewing the Moon, Saturn, stars and nebulae with a variety of telescopes … .

The Delos eyepieces are "easy to look through … . They have flat fields, delivering absolute pinpoint stars from edge to edge with no hint of color aberration. The view, especially during the daytime, is very pure with no noticeable color tint. And there wasn't a hint of ghosts or reflections, even with the brightest stars".

"What caught me a bit off guard, however, was something that's best described as the observing experience. It was distinctly pleasurable."

"I have the sensation of looking out of a circular window rather than into an eyepiece."

— di Cicco, Dennis. "Tele Vue's New Delos Eyepieces". Sky & Telescope (June 2011). p. 58, 59.

Tele Vue's Delos 6mm is a short focal length eyepiece that will deliver high power magnification. Importantly though it still achieves a generous 20mm eye-relief and wide 72° apparent field of view. Amazing in well corrected refractors with short to medium focal lengths. High powered views without the need for a Barlows or Powermate! The Delos 6mm provides 333x magnification in an 8" f/10 Schmidt Cassegrain making it an amazing eyepiece for high powered views (without going too far)!

There is a good chance the TeleVue Delos will be seen as the ultimate combination of performance, viewing comfort and price. If you've been keeping a spot in your case for an affordable, premium eyepiece, you should consider a Delos - you won't be disappointed! Lessons learned from the tremendously successful Ethos series were applied to develop this long eye-relief, 72° apparent field of view eyepiece line.

The Delos 6mm has a 1.25" barrel making it suitable for almost any telescope or even bino-viewers!

Tele Vue Delos 6mm - Specifications

• Model # EDL-06.0
• Focal Length 6mm
• Barrel Size 1.25"
• Apparent Field of View 72°
• Eye Relief 20mm
• Weight 453g
• Field Stop 7.6mm

Background:

In 2011 Tele Vue introduced the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference-standard performance for any visual application.

The Delos was conceived as a narrower field Ethos. Reducing the field to 72° allowed freedom to increase eye-relief, while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect f θ (theta) distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece.

Contrast is further enhanced with a new, continuously adjustable height eyeguard system that can be locked in any position. Since the Delos eye-lens measures a quite large 35mm in diameter, preventing stray light from reflecting off the first surface and extraneous light from entering your eye pays off in a nice increase in perceived contrast. The eyeguard's sliding action allows for positioning the soft rubber eyeguard at the ideal height to suit the observer's preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrx users.

Reviews

Sky & Telescope Hot New Product for 2012 Award

Review of the 6mm & 10mm Delos from Astronomy Magazine, December 2011

Excerpts from Sky & Telescope, June 2011, review of Delos eyepieces:

WHAT WE LIKE:

Essentially perfect optics
"Immersive" observation experience

WHAT WE DON'T LIKE:

I spent several nights viewing the Moon, Saturn, stars and nebulae with a variety of telescopes … .

The Delos eyepieces are "easy to look through … . They have flat fields, delivering absolute pinpoint stars from edge to edge with no hint of color aberration. The view, especially during the daytime, is very pure with no noticeable color tint. And there wasn't a hint of ghosts or reflections, even with the brightest stars".

"What caught me a bit off guard, however, was something that's best described as the observing experience. It was distinctly pleasurable."

"I have the sensation of looking out of a circular window rather than into an eyepiece."

— di Cicco, Dennis. "Tele Vue's New Delos Eyepieces". Sky & Telescope (June 2011). p. 58, 59.

Nagler Type 6

Introduced at the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure Tele Vue quality. The field area of this new eyepiece is more than 50% larger than an 82° field. The Tele Vue Ethos 17mm is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.

We invited NEAF attendees to take a look and see the universe the way we think it was meant to be experienced, with a field of view incredibly wide and sharp! We were very pleased indeed by the response and validation of our design goals.

The Tele Vue ETHOS 17mm is an ideal complement to the 31mm Nagler Type-5. They are parfocal (both have focus locations about 10mm above shoulder) and the 31mm Nagler Type-5 has exactly twice the true field area.

Tele Vue Ethos 17mm Specifications

Related Links

•Eyepiece Distortion
Technical reference on rectilinear and angular magnification distortion.

•Majesty Factor
Compare eyepieces by quantifying contrast, power, and apparent field.