• Lunt 7.2 mm – 21.5mm Zoom Telescope Eyepiece
• Lunt flat-field eyepieces are coated with 0.1% anti-reflective coatings – the same coatings we use on our etalons!
• Use these eyepieces for nighttime as well as when viewing the Sun.
• 1.25″ barrel.

Zoom Telescope Eyepiece

General Features:

• Lunt flat-field zoom telescope eyepiece is coated with 0.1% anti-reflective coatings – the same coatings we use on our etalons!
• Use these eyepieces for nighttime as well as when viewing the Sun.
• 1.25″ barrel.

Lunt 7.2 mm – 21.5mm Telescope Eyepiece

• Focal length: 7.2 mm – 21.5 mm
• Barrel size: 1.25″
• Diameter: 47 mm
• Height: 82 mm
• Eye relief: 15 mm
• Lenses / Groups: 7 lenses / 4 Groups
• Field of View: 7.2 mm – 53° – 21.5 mm – 40°

Zoom Telescope Eyepiece

General Features:

• Lunt flat-field zoom telescope eyepiece is coated with 0.1% anti-reflective coatings – the same coatings we use on our etalons!
• Use these eyepieces for nighttime as well as when viewing the Sun.
• 1.25″ barrel.

Lunt 7.2 mm – 21.5mm Telescope Eyepiece

• Focal length: 7.2 mm – 21.5 mm
• Barrel size: 1.25″
• Diameter: 47 mm
• Height: 82 mm
• Eye relief: 15 mm
• Lenses / Groups: 7 lenses / 4 Groups
• Field of View: 7.2 mm – 53° – 21.5 mm – 40°

The Calcium K (Ca-K) module is designed for observing the Sun in the 393.4 nm wavelength, one of the two emission lines produced by Calcium near the edge of the visible spectrum. This line originates from a slightly lower and cooler layer of the solar atmosphere than that observed in Hydrogen-alpha, revealing supergranulation cells and bright regions associated with strong magnetic activity such as sunspots and active regions.

Observing both the Calcium K and Hydrogen-alpha wavelengths provides a deeper understanding of the Sun’s structure, magnetic field strength, and the dynamics of its active regions.

This Calcium K Module is engineered exclusively for the Lunt LS130MT Universal Telescope, integrating seamlessly with its modular design. It allows the LS130MT to be configured for Ca-K solar observing or imaging with optimal performance.

The Ca-K line at 393.4 nm lies just beyond the visible spectrum on the ultraviolet side. While many observers can perceive a faint violet hue, others may find the contrast difficult to discern due to natural eye limitations. For this reason, Calcium K is most effectively studied through imaging — modern cameras capture the fine structure and intricate detail of the Sun in this wavelength with remarkable clarity.

The Lunt Ca-K Module for LS130MT includes internal narrowband filters with a <2.4 Å bandpass, delivering crisp, high-contrast solar images. This is primarily an imaging system, though experienced observers or those with enhanced UV sensitivity (such as post-cataract surgery) may enjoy limited visual observation.

The Lunt Front Mount 40mm Double Stack represents a significant upgrade for LS40 users seeking enhanced solar observation capabilities. This precision optical system delivers exceptional H-alpha contrast and detail, revealing intricate chromospheric features with remarkable clarity. The double stack configuration dramatically reduces bandwidth, enabling observation of fine prominences, filaments, and surface details that single-stack systems simply cannot resolve. Built to Lunt's exacting standards, this front-mounted design integrates seamlessly with your existing LS40 setup, providing professional-grade performance for serious solar astronomers and experienced observers.

Because the LS40FHa Solar Filter has an estimated bandpass of <0.70 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50. Allowing for higher resolution viewing and/or imaging. In addition, the part number LS40FHa is offered for this purpose or for those who already have a Lunt blocking filter.

LS40FHa Specifications: (single filter)

• Optical Aperture: 40 mm
• Etalon: <0.70 Angstrom
• Tuning: Tilt
• Focal Length: 400mm
• Filter Storage: Aluminum finished hard case with fitted foam
• Filter Weight: 0.4kg

Note: Only compatible with the 40mm Lunt Solar Telescopes

Double stacking provides a truly enhanced, high definition view of the Sun’s surface details. Notably, it lowers the bandpass of the system from <0.65 Angstroms to <0.45 Angstroms. This will significantly make the surface features on the Sun "pop"!

The Lunt 130 mm and 152 mm telescopes can be internally double-stacked at the time of purchase or anytime thereafter. Furthermore, neither telescope module will need to be returned to the factory for double-stacking.

You can purchase the 130 mm or 152 mm single stack telescope initially and add the LFPT to make it a double stack unit later. This will make it more affordable to purchase our a new universal telescope and still have room for upgrades. Once you upgrade your Lunt Universal Telescope with the double stack unit, you will be able to see the finer details not previously visible.

Double stacking provides a truly enhanced, high definition view of the Sun’s surface details. Notably, it lowers the bandpass of the system from <0.7 Angstrom to <0.5 Angstrom, which really makes the surface “pop”!

The Lunt 80 mm and 100mm Universal Telescopes can be internally double-stacked at the time of purchase or anytime thereafter. Furthermore, neither telescope module will need to be returned to the factory for double-stacking.

You can purchase the 80 mm or 100 mm single stack universal telescope initially and add the SFPT to make it a double stack unit later. This will make it more affordable to purchase our a new universal telescope and still have room for upgrades. Once you upgrade your Lunt Universal Telescope with the double stack unit, you will be able to see the finer details not previously visible.

The Lunt LS50C Front Mount 50mm Double Stack represents a significant upgrade for LS50 users seeking enhanced solar observation capabilities. This precision optical system delivers exceptional H-alpha contrast and detail, revealing intricate chromospheric features with remarkable clarity. The double stack configuration dramatically reduces bandwidth, enabling observation of fine prominences, filaments, and surface details that single-stack systems simply cannot resolve. Built to Lunt's exacting standards, this front-mounted design integrates seamlessly with your existing LS50 setup, providing professional-grade performance for serious solar astronomers and experienced observers.

Because the LS50C Solar Filter has an estimated bandpass of <0.70 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50. Allowing for higher resolution viewing and/or imaging.

The LS50C is easy to install, simply Screw it on to the front of your 50mm Lunt solar scope, and you are ready to observe the Sun in far greater contrast than before.

Note: Only compatible with the 50mm Lunt Solar Telescope

The Lunt LS50FHa Front Mount 50mm Double Stack represents a significant upgrade for LS60 users seeking enhanced solar observation capabilities. This precision optical system delivers exceptional H-alpha contrast and detail, revealing intricate chromospheric features with remarkable clarity. The double stack configuration dramatically reduces bandwidth, enabling observation of fine prominences, filaments, and surface details that single-stack systems simply cannot resolve. Built to Lunt's exacting standards, this front-mounted design integrates seamlessly with your existing LS60 setup, providing professional-grade performance for serious solar astronomers and experienced observers.

Because the LS50FHa Solar Filter has an estimated bandpass of <0.70 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50. Allowing for higher resolution viewing and/or imaging. In addition, the part number LS50FHa is offered for this purpose or for those who already have a Lunt blocking filter.

LS50FHa Specifications: (single filter)

• Optical Aperture: 50 mm
• Etalon: <0.70 Angstrom
• Tuning: Tilt
  
• Filter Storage: Aluminum finished hard case with fitted foam
• Filter Weight: 2 lb (~1kg)

Note: Only compatible with the 60mm Lunt Solar Telescopes

The Lunt LS50FHa Front Mount 60mm Double Stack represents a significant upgrade for LS60 users seeking enhanced solar observation capabilities. This precision optical system delivers exceptional H-alpha contrast and detail, revealing intricate chromospheric features with remarkable clarity. The double stack configuration dramatically reduces bandwidth, enabling observation of fine prominences, filaments, and surface details that single-stack systems simply cannot resolve. Built to Lunt's exacting standards, this front-mounted design integrates seamlessly with your existing LS60 setup, providing professional-grade performance for serious solar astronomers and experienced observers.

Because the LS60FHa H-Alpha Filter has an estimated bandpass of <0.70 Angstrom, it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50 (dependent upon scope) allowing for higher resolution viewing and/or imaging. An LS60FHa H-Alpha Filter without blocking filter is offered for this purpose or for those who already have a Lunt blocking filter. A Lunt blocking filter must be used with Lunt Ha filters at all times.

LS60FHa Specifications: (single filter)

• Optical Aperture: 60 mm
• Etalon: Internal <0.70 Angstrom
• Tuning: Tilt
• Focal Length: Customer Telescope
• Storage: Aluminum finished hard case with fitted foam
• Weight: 1.5kg

Note: Only compatible with the 60mm Lunt Solar Telescopes

The Lunt Solar Systems Pressure Tuner Controller, or PC-USB, is a microprocessor controlled, remote operable* , pressure control system that can be retrofitted to any Lunt PT product without return to the Lunt facility. A simple 1/8″ airline connects the PC-USB to the Solar Telescope and can be installed at any length.

The PC-USB is a simple 2 button system. One button for increasing and one button for decreasing the PT pressure. Digital feedback and indicator lights are provided.

The PC-USB can run continuously on internal battery power for more than 12 hours. It has external power input (12-15 VDC) (120/240 VAC to 12 V adapter) that can power the unit and charge the internal batteries simultaneously.

All existing PT systems can be retrofitted via an adapter to the pressure tuner knob. Or, future PT units can be specified with a quick disconnect at the PT input, removing the PT knob from the telescope altogether.

Upon power up the PC-USB will go thru a systems vent and ambient pressure set mode. It can be factory or user programmed to center wavelength setpoint. Due to the sealed nature of the system, the center wavelength setpoint will remain constant at any altitude at a given set pressure point.

The Pressure Tuner Controller is accurate to 0.3 PSI, providing very precise control of the pressure setpoint. It will auto-compensate for fluctuations in internal pressure changes due to significant changes in temperature. Because the PC-USB can provide closed-loop feedback of internal etalon pressure, users can correlate change in pressure to doppler shifted events.

Contact us if you need additional hose length.

* USB Cables for remote usage not included

ZWO M48 公头转 M48 母头延长器 16.5 毫米

Description

巧妙适应的流体摄像头。借助 Manfrotto 128RC 微型流体摄像云台，快速获得完美效果变得轻而易举。这款智能摄像头专为重量不超过 4 公斤的相机而设计，并且具有许多设计友好的功能，让每次拍摄都变得轻而易举。

水平和垂直轴的专业流畅性使您的移动非常顺畅和可靠。快速释放相机板是包装的一部分，因此您可以快速设置并快速连接相机。

这款摄像云台外观精美，经久耐用。黑色喷漆铝制机身可承受高强度使用，而且用途广泛。平底底座可连接各种三脚架，因此您可以根据手头的工作情况随意搭配使用。

规格 Manfrotto 128RC 微型视频云台

Manfrotto 190X3 128RC 三脚架
这款三脚架和液压云台经过多年的试用和测试。128RC 液压云台可实现顺畅的倾斜和平移动作，让您可以跟踪移动中的目标。两个轴上的摩擦锁均可设置，让瞄准镜可以移动并停留在您想要的位置。手柄的位置可根据您的喜好进行调整，让您能够更精确地操控瞄准镜。

为了让您安心，三脚架云台配备了一个带有安全锁的快装板 - 不会因在现场无意中将望远镜从三脚架上松开而造成严重冲击。

Manfrotto 190X3 - 128 微型流体云台规格

Manfrotto 290 XTRA 套件（带视频头）

对于观鸟和数码观鸟爱好者来说，新款 Manfrotto 290 Xtra 是稳定性方面的完美解决方案。
Manfrotto 290 Xtra 是一款 3 节三脚架，是 290 系列中最大的一款，采用铝制脚管和特殊顶部铸件，可增强刚性、耐用性和性能。其铝制脚管锁定杆可调节张力，因此可以拧紧以抵消任何老化和磨损的影响，使三脚架在其整个使用寿命期间保持完全功能。

这款三脚架的主要特点是它有四种脚管角度可供选择，可以最大限度地发挥拍摄的创造力。它的快速中心柱增加了灵活性，并扩大了最小-最大高度范围。新的橡胶脚管确保握感舒适，并最大限度地符合人体工程学。这款三脚架配有专用的肩包，确保随时携带舒适。
290 Xtra 套件包含一个轻质铝制液压云台，配有摇摄杆和快装板，并配有二级安全保护。它具有流畅的移动、摇摄和倾斜锁定功能。该云台非常适合重量不超过 4 公斤的相机。

规格

Description

高度紧凑和便携。曼富图 BeFree 旅行三脚架带球头，可轻松放入您的行李箱，方便携带，同时为您的摄影工作提供高精度和准确的支撑。独特的折叠机制是这款带球头三脚架的突出特点。通过设计腿以完美折叠在球头和快装板上，它的尺寸缩小到只有 40 厘米长。现在，您可以轻松携带 Be Free 铝合金旅行三脚架，无论您需要去哪里，都无需大惊小怪或麻烦。带球头三脚架可承受 4 公斤的有效载荷，为您提供更准确的拍摄效果。即使使用长焦镜头，您仍将获得更清晰的图像。

这款带云台的三脚架采用特殊设计，可确保您的相机牢牢锁定在原位。借助获得专利的脚管角度选择器，您可以在两种倾斜度之间进行选择，从而尽可能精确地完成工作。Be Free 铝合金旅行三脚架采用时尚的意大利设计，将脱颖而出。收拾行装，去旅行，找到完美的图像。

Manfrotto BeFree 旅行三脚架带球头使用说明书

Heavy duty holder, ideal for attaching binoculars to a standard photographic tripod for extended and relaxed viewing sessions.

• Designed to securely hold binoculars
• Universal 1/4'' thread attachment
• Possibility to be attached to a tripod head or fluid head
• Clamp range round tube: 13-55mm

This Binocular Super Clamp can hold up to 15kg and is well suited to binoculars without a universal centre mounting connector. It features a solid mechanism that means your binoculars will stay firmly attached to your tripod. 

随身携带。Manfrotto PIXI 是紧凑型相机 (CSC) 的完美迷你三脚架。对于寻求轻便、便携且易于使用的支撑系统的摄影师来说，这是理想的解决方案。Manfrotto PIXI 可帮助您完美捕捉稳定流畅的具有挑战性的视频镜头。不需要三脚架腿？使用 Manfrotto PIXI 并合上腿，即可捕捉专业级视频，这些视频一定会脱颖而出。全新的按钮机制使您能够以快速、直观的动作定位和锁定球头。按下按钮可释放球形接头以自由移动。释放按钮时，球会自动锁定在选定位置。

Manfrotto PIXI 具有简约的意大利风格，采用不锈钢和 Adapto 制成，表面质量上乘。其坚固的结构为您提供了适合任何拍摄情况的安全底座，而橡胶脚可确保在任何表面上提供稳定且防滑的基础。由于通用的 ¼” 螺纹和出色的稳定性，您可以将 PIXI 与多种不同的数码设备一起使用，重量可达 1 公斤。

皮西

• 适用于紧凑型系统相机的迷你三脚架
• 舒适的手柄可捕捉精彩的视频
• 按钮锁定机制，易于设置
• 重量轻、使用直观、易于携带
• 迷人的意大利设计

Meade 10 SCT Flexi-Shield® 柔性防露罩，无缺口。适合 10 英寸 LX90 和 LX200 ACF。

Meade RA 电源延长线

您是否曾遇到过电源线在传输过程中被叉臂撞击并断开电源的问题。这真的很麻烦，尤其是当您在会话中途必须重新调整时。Meade RA 电源延长线使用直角插头插入控制面板，长度为 1 米。它连接到您的普通电缆，不会再出现问题。

提供非常宽的视野，具有精确的视场边缘清晰度。这些最新进展提供了完全多镀膜的光学设计，并采用高级异国情调的光学玻璃，以实现最佳的图像色彩和亮度校正。黑色镜片边缘提供增强的对比度并有助于减少反射，而共焦设计在目镜之间切换时几乎不会产生焦点变化。凭借宽大的眼部缓解，享受舒适的观察体验。与传统 Plössls 相比，UHD 目镜在色差和边缘失真校正方面提高了 40%。

采用防水设计，UHD 目镜可抵御雾气和户外大气元素。边缘呈黑色且为共焦。以全新、更佳的视角观察您喜爱的天体。

提供非常宽的视野，具有精确的视场边缘清晰度。这些最新进展提供了完全多镀膜的光学设计，并采用高级异国情调的光学玻璃，以实现最佳的图像色彩和亮度校正。黑色镜片边缘提供增强的对比度并有助于减少反射，而共焦设计在目镜之间切换时几乎不会产生焦点变化。凭借宽大的眼部缓解，享受舒适的观察体验。与传统 Plössls 相比，UHD 目镜在色差和边缘失真校正方面提高了 40%。

采用防水设计，UHD 目镜可抵御雾气和户外大气元素。边缘呈黑色且为共焦。以全新、更佳的视角观察您喜爱的天体。

Meade 望远镜盖 8 英寸 LX 系列

这款防风雨和防紫外线的盖子可保护您的 8 英寸 LX 系列望远镜，适合短期户外使用，例如多次日间/夜间星空派对或在长周末在后院安装 Meade 望远镜盖。不适合长期存放。由银色织物材料制成，内衬为黑色。适用于白天的高温、寒冷、小雨和露水。阻挡紫外线以延长望远镜在户外的使用寿命。

防风雨和防紫外线的外壳可以保护您的 LX 系列望远镜，适合短期户外使用，例如多次昼夜星空聚会或在后院设置几天。

Handy standard sized microscope slides

• Clear glass
• Ground edges
• 25.4 mm x 72mm (1" x 3")
• 1-1.2mm thick

On July 21, 1969, the first man set foot on The Moon. When Neil Armstrong was asked if this made him feel big, he answered: "No, it made me feel really, really small."

50 years later, this publication celebrates that special moment that put life on earth into a totally different perspective. It collects pictures of the world's best photographers from the 1840s until today. Next to historical photographs and imagery printed in media, the publication features many artists that each in their own way reflect on this mystical celestial body, we call 'moon'. The book shows the diversity of meanings of The Moon, it's relation to mankind and to nature.

The Moon has always both attracted and scared people around the world. It is our everyday connection to the unfathomable universe. Since time immemorial it is revered for its beauty, its stillness and mysterious appearance and yet also feared for its supernatural-seeming qualities. In mythology The Moon has always been given a central place. With its magnetic forces it changes the tides and has a direct and uncontrollable impact on mankind from above.

In 1840, barely three years after the invention of photography, J.W. Draper makes the first picture ever made of The Moon and since that day photographers have never stopped following his example. The paradoxical aspects of the moon continue to fascinate and inspire. Like a photograph The Moon depends on sunlight to be visible. It has no light of its own and no apparent strength to resist our nightly city lights either. Photographers feel this close connection to The Moon's characteristics and find the perfect object in its aesthetics.

The landing on The Moon was a culmination point of the1960's Space Race between the United States and the Soviet Union, which quickly became a symbol of the Cold War. The images of the landing became the bearer of values and symbols of the United States and were widely spread through various media. In 1973 NASA abolished its moon program. The Moon had been conquered and the public seemed to have had lost interest. However, today people still find The Moon fascinating, and humanity continues to dream about setting foot on the sun's shadow.