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Bintel Glebe
Usually ready for pickup in 24 hours
Bintel 84 Wentworth park road, Glebe, 2073, NSW
Phone:(02) 9518 7255
Hours:
Monday9:30 am–5:30 pm
Tuesday9:30 am–5:30 pm
Wednesday9:30 am–5:30 pm
Thursday9:30 am–5:30 pm
Friday9:30 am–5:30 pm
Saturday9:30 am–4 pm
SundayClosed
Antlia Imaging Filters
6 products
6 products
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$649.00
ALP-T Dual Band 5nm Filter is best suited for optics f-ratios slower than f/3.6, the standard Antlia ALP-T Dual Band filter is highly recommended. Meanwhile, if you seek the best possible performance with any optics faster than f/2.2, the highspeed version is the best choice.
The Antlia ALP-T dual band 5nm series filter is a dual line-pass filter that was designed to be used primarily with one-shot color (OSC) cameras such as DSLR's and astronomical OSC cameras. It can also be used as a narrowband filter for monochrome cameras to save imaging time. The advanced multi-coatings on our ALP-T ultra dual-band filter effectively isolate the red Ha and the blue-green OIII lines light from emission nebulae, with almost total suppression of optical density (OD) 4.5 on unwanted wavelengths from light pollution, moonlight, and airglow. The result is that our ALP-T dual band 5nm filter creates a superior signal-to-noise ratio and better contrast in your images.
The Antlia ALP-T Dual Band filter enables the capture of the two main emission nebulae bands at the same time, whilst suppressing unwanted light pollution. It enables you to capture cleaner data and reduces the post-processing efforts to isolate faint details from the background light pollution.
Application and Performance:
Designed especially for optics, slower than f/3.6
Engineered specifically for use with DSLR, CMOS, and CCD color cameras
Suppression of optical density (OD) 4.5 on unwanted wavelengths adds signal-to-noise
Extremely steep bandpass edges minimize internal reflections
Ideal flat-top and moderate bandpass reducing spectrum downshifts
Ion Gun Assisted Deposition coating technology on the double-sided polished substrate making it the most consistent and accurate light pollution suppression filter
Designed to suppress artificial lighting from Bortle scale 1 to Bortle scale 8
Near IR (NIR) is blocked up to 1050nm
Technical Specifications:
| Hydrogen-alpha | Oxygen III | |
| FWHM | 5nm | 5nm |
| CWL (Central Wavelength) | 657.8nm | 502.2nm |
| Peak Transmission | 88% | 82% |
| Blocking | ≥OD4.5 @ 300-1050nm | |
| Filter Thickness | 2mm+/-0.05mm | |
Filter Ring:
2'' (M48*0.75)
Ultra-thin filter cell to minimize vignetting by maximize possible clear aperture
Black Anodized Finish
Laser Engraving No Fading
Spectrum Curve:
Not Recommended:
Solar imaging
Night visual observation
Not Permitted:
DO NOT LOOK AT THE SUN WITH THIS FILTER
Serious eye damage will result if you fail to observe the warning
From $520.00
The Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF/KAI sensors, Sony IMX sensors, GSENSE and other sensor manufacturers. The LRGB-V Pro set is designed to approximately equalize the RGB response from the flux of red-sensitive CCD detectors. The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced imaging time. New LRGB-V Pro series filters feature a carefully designed spectral gap between the green and red channels to minimize the effect of light pollution and to provide high transmittance of useful frequencies. The filters’ design maximizes the capture of details from fainter galaxies and nebulae emissions. The LRGB-V Pro series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal >95% in blue and green). The bandwidth of the B channel is narrowed for the purpose of improving the blue channel overflow (haloing) around the star due to B channel overexposure. Antlia LRGB-V Pro series filters block the emission line around 589nm by the design of wide gap between G and R filters, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural color balance. The uniformity in substrate thickness delivers good parfocal performance across all Antlia filters.
Highlight of LRGB-V Pro series set
1. Premium coating technology and finely polished substrate Our quality selection processes are optimized to ensure highly homogeneous glass-substrates. Our application of advanced optical coating technology and double-sided precision polishing achieves both consistent parfocal and optical performance across all filters. 2. Maximized colour balance and contrast for each of the three RGB channels and excellent S/N performance Dozens of coating layers are deposited on both sides of the glass substrate that enables LRGB-V Pro filters to achieve a high SNR. The Anti reflection coatings and carefully designed spectral gaps minimize unwanted light scatter and maximize useful signal data for each filter channel.
3. Tighter star profiles and halo reduction The cut-off rate of LRGB-V Pro series set is designed in high level to minimize halos around brighter stars and reduce star bloat. Our careful design of the blue channel transmission characteristics targets the problem of blue star bloating.
Application and Performance:
1. Designed for monochrome CCD and CMOS cameras
2. Great imaging colors for celestial objects, galaxies, star clusters and nebulae
3. AR anti-reflection film design for secondary reflection and star halo reduction
4. R-Filter provides maximum transmission of H-alpha and S II emission
5. B/G overlap doubles the energy in the OIII line
6. Balanced RGB-design offer 1:1:1 exposure times for most telescope optical systems
7. All Antlia LRGB-V Pro filters are edge blackened to eliminate internal reflections from stray light
8. The substrate thickness of each of the four LRGB filers is maintained to tight tolerances
9. Not recommended for Solar observing and imaging
10. Not recommended for visual observation
Important Note: When using any parfocal filters, the user may still experience focus shifts between filters during long imaging sessions. It is important to remember that temperature shifts will change the length of the optical path due to the differential contraction between the telescope tube and the glass optical elements. It is recommended that the photographers check focus either manually or automatically in software every 1 to 2 hours. In cases where the telescope has been brought from a warm environment to outside, more frequent focus checks are required until the equipment has stabilized nearer to ambient temperature.
Technical Specifications:
Basic Substrate: optical substrate
Filter Thickness: 2mm+/-0.05mm for 1.25’’
Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
Transmitted Wavefront: Lambda/4 or better.
Parallelism: less than 30 arcsec
Single / Non-glued substrate
From $1,310.00
The Antlia 3nm Pro Ultra Narrowband filter set includes the following items:
- Antlia H-Alpha 3nm filter
- Antlia OIII 3nm filter
- Antlia SII 3nm filter
Antlia SHO Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets by lowering the unwanted background signal. Antlia SHO 3nm Pro filter is designed to deliver 88% transmission at the 671.6nm line which provides you with the maximum signal and well defined nebulae structures.
Conventional broader narrowband filters cause a heavy loss in transmission due to the strong (Center Wavelength (CWL)-shift. We guarantee T>88% within 1nm range of the center bandwidth,which means that the 3nm Pro narrowband filter can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data show that Antlia 3nm Pro filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meets the requirements of fast optics like Hyperstar and RASA.
The out of band blocking specification is rated OD5 (0.001%) which delivers an excellent SNR(signal to noise ratio) and effective cut-off rate to minimize interference from other wavelengths. Improved sharp cut-off astrophotography 3nm Pro filters are designed to minimize halos around bright stars.
Application and Performance:
- High transmittance and smallest bandwidth to maximize contrast
- Steep spectral profile minimizes halos around bright stars
- A single substrate to eliminate internal reflections
- Narrowband Objects: Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
- Use in light polluted areas and dark sites
- Extends imaging time when the moon is up
- Antlia narrowband Pro filters can be used down to F/3 systems with slight loss of signal
- All Antlia Narrowband filters are edge blackened to eliminate internal reflections from stray light
- Superior optical reliability reduces post image processing
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$679.00
Antlia SII 3nm Pro narrowband filter optimizes the FWHM (full-width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance the contrast of emission targets by lowering the unwanted background signal. Antlia SII 3nm Pro filter is designed to deliver 88% transmission at the 671.6nm line which provides you with the maximum signal and well-defined nebulae structures.
Conventional broader narrowband filters cause a heavy loss in transmission due to the strong (Center Wavelength (CWL)-shift. We guarantee T>88% within 1nm range of the center bandwidth, which means that the 3nm Pro narrowband filter can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data show that Antlia SII 3nm Pro filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meet the requirements of fast optics like Hyperstar and RASA.
The out-of-band blocking specification is rated OD5 (0.001%) which delivers an excellent SNR(signal-to-noise ratio) and effective cut-off rate to minimize interference from other wavelengths. Improved sharp cut-off astrophotography 3nm Pro filters are designed to minimize halos around bright stars.
Application and Performance:
High transmittance and smallest bandwidth to maximize contrast
A steep spectral profile minimizes halos around bright stars
A single substrate to eliminate internal reflections
Narrowband Objects: SII Emission Nebulae, Planetary, Wolf-Rayet Nebulae and Supernova Remnants
Use in light-polluted areas and dark sites
Extend imaging time when the moon is up
All Antlia narrowband Pro filters can be used down to F/3 with a slight loss of signal
All Antlia Narrowband filters are edge-blackened to eliminate internal reflections from stray light
Superior optical reliability reduces post-image processing
This filter is not suited to deep-sky objects that do not contain SII emissions.
Technical Specifications:
Basic Substrate: Schott optical substrate
Filter Thickness:2mm+/-0.05mm for 2'' mounted
FWHM (Full width at half maximum): 3nm
CWL (Central Wavelength): 671.6nm
Peak Transmission: >88%
Blocking: > 5 OD(0.001% out of band blocking) @ 300-1000nm
Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
Transmitted Wavefront: Lambda/4 or better.
Parallelism: less than 30 arcsec
Single / Non-glued substrate
Warranty: 3 years against delamination
SKU: ANTLIASii3nm2
$679.00
Antlia OIII 3nm Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance the contrast of emission targets by lowering the unwanted background signal. Antlia OIII 3nm Pro filters are designed to deliver 85% transmission at the 500.7nm line which provides you with the maximum signal and well-defined nebulae structures.
Conventional broader narrowband filters cause a heavy loss in transmission due to the strong Center Wavelength (CWL) shift. We guarantee T>85% within 1nm range of the center bandwidth, which means that the 3nm Pro narrowband filter can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blueshift data shows that Antlia 3nm Pro filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meet the requirements of fast optics like Hyperstar and RASA.
The out-of-band blocking specification is rated OD5 (0.001%) which delivers an excellent SNR(signal-to-noise ratio) and effective cut-off rate to minimize interference from other wavelengths. Improved sharp cut-off astrophotography 3nm Pro filters are designed to minimize halos around bright stars.
Application and Performance:
High transmittance and smallest bandwidth to maximize contrast
Steep spectral profile minimizes halos around bright stars
A single substrate to eliminate internal reflections
Narrowband Objects: OIII Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
Use in light polluted areas and dark sites
Extends imaging time when the moon is up
Antlia narrowband Pro filters can be used down to F/3 systems with slight loss of signal
All Antlia Narrowband filters are edge blackened to eliminate internal reflections from stray light
Superior optical reliability reduces post image processing
This filter is not suited to deep sky objects that do not contain OIII emissions.
Technical Specifications:
Basic Substrate: optical substrate
Filter Thickness: 2mm+/-0.05mm for 2'' mounted
FWHM (Full width at half maximum): 3nm
CWL (Central Wavelength): 500.7nm
Peak Transmission: >85%
Blocking: > 5 OD(0.001% out of band blocking) @ 300-1000nm
Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
Transmitted Wavefront: Lambda/4 or better.
Parallelism: less than 30 arcsec
Single / Non-glued substrate
Warranty: 3-years against delamination
DO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.
When we design filters for astronomy imaging systems, we look at how they will work together with optical systems, carefully designing the blocking and bandpass parameters to achieve an optimum result. The out-of-band blocking rate is a very important performance index since it is designed to sharply attenuate off-band wavelengths. The result is that the Antlia OIII 3nm Pro filter delivers excellent contrast with extremely dark backgrounds whilst delivering a high transmission of the OIII signal. Such filters are more difficult to produce to a consistently high standard.
Each filter is individually tested and scanned to ensure that the quality meets the high-performance parameters. The end result is a filter that achieves excellent contrast but with a higher production cost. We believe the price-to-performance ratio compares more favorably than similar premium filters in the market.
SKU: ANTLIAOIII3nm2
$689.00
Antlia ALP-T Dual Band 5nm Highspeed Filters are optimized to work with high-speed imaging systems by shifting slightly the passband and center wavelength. Using these highspeed filters between optics f/2.2 and f/3.6 shows much stronger and more contrasted in nebulae imaging compared to the standard version, if you seek the best possible performance with any optics faster than f/2.2, the highspeed version is the best choice.
But keep in mind, the blue shift data by the computer simulation indicates narrowband filter shifts its bandwidth to shorter wavelengths with faster optics than f/2, transmission at the emission wavelength may decrease perhaps 15%-20%. Although the Antlia ALP-T highspeed filter has similar transmission rates reduction in the H-a and OIII when the filter is used on fast optics, based on current standard version users’ data, it is evident that the filter still has the high performance of increase in emission nebula contrast and minimized halo.
The highspeed version price is the same as the standard filters and double benefits for the high-speed optics users. Worth mentioning is that Antlia inspected and measured products piece by piece with one of Agilent Cary’s professional spectrophotometer, resolution/slit width is up to 0.2nm, which make us provide highly reliable and consistent products to you.
The Antlia ALP-T dual band 5nm series filter is a dual line-pass filter that was designed to be used primarily with one-shot color (OSC) cameras such as DSLR's and astronomical OSC cameras. It can also be used as a narrowband filter for monochrome cameras to save imaging time. The advanced multi-coatings on our ALP-T ultra dual band filter effectively isolate the red Ha and the blue-green OIII lines light from emission nebulae, with almost total suppression of optical density (OD)4.5 on unwanted wavelengths from light pollution, moonlight, and airglow. The result is that our ALP-T dual band 5nm filter creates a superior signal-to-noise ratio and better contrast in your images.
The filter enables the capture of the two main emission nebulae bands at the same time, whilst suppressing unwanted light pollution. It enables you to capture cleaner data and reduces the post-processing efforts to isolate faint details from the background light pollution.
Application and Performance:
Designed especially for fast astronomy optics, in particular f-ratios f/2.2 to f/3.6
Engineered specifically for use with DSLR, CMOS, and CCD color cameras
Suppression of optical density (OD)4.5 on unwanted wavelengths adds signal-to-noise
Extremely steep bandpass edges minimize internal reflections
Ideal flat-top and moderate bandpass reducing spectrum down shifts
Ion Gun Assisted Deposition coating technology on the double-sided polished substrate making it the most consistent and accurate light pollution suppression filter
Designed to suppress artificial lighting from Bortle scale 1 to Bortle scale 8
Near IR (NIR) is blocked up to 1050nm
Technical Specifications:
| Hydrogen-alpha | Oxygen III | |
| FWHM | 5nm | 5nm |
| CWL (Central Wavelength) | 657.8nm | 502.2nm |
| Peak Transmission | 88% | 82% |
| Blocking | ≥OD4.5 @ 300-1050nm | |
| Filter Thickness | 2mm+/-0.05mm | |
Filter Ring:
2'' (M48*0.75)
Ultra-thin filter cell to minimize vignetting by maximize possible clear aperture
Black Anodized Finish
Laser Engraving No Fading
Spectrum Curve:
Not Recommended:
Solar imaging
Night visual observation
Not Permitted:
DO NOT LOOK AT THE SUN WITH THIS FILTER
Serious eye damage will result if you fail to observe the warning
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