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Reducers, Extenders, Correctors, Flatteners

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William Optics Adjustable reducer flattener Flat73R for Z73

New, dedicated 2" flattener by William Optics optimized for use with their Z73 Zenithstar OTA. Designed for APS-C size or smaller imaging chips (not for use with full-frame cameras).

Features an M63 male thread for a direct threaded connection to the Z73 on the telescope side.
On the camera side, the flattener has a male M48x0.75 thread. You can use your Canon or Nikon DSLR directly with the use of an optional M48 camera-specific T-ring (sold separately). With this, your camera chip will be placed at the correct 55mm working distance.
Note that you cannot use this with the smaller T rings that have a 42mm T thread.
The WO Flat73R also has a female M48x0.75 (2" filter thread) on the inside to which you can attach standard 2" filters. To access this thread, you need to unscrew the telescope adapter portion of this flattener.
A very neat fature of this item is that a rotator/camera angle adjuster is built into the mechanism of this item, making a separate rotator unnecessary.

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฿9,990.00

Sharpstar 0.8x Reducer/Flattener (support Full Frame) for 94EDPH

The Sharpstar 2.5" 94EDPH F/4.4 redcuer/flattener is the latest development in dedicated full-frame focal reducers. Designed to work with the Sharpstar 94EDPH apochromatic refractor, this 0.8x reducer and flattener meets the needs of demanding astrophotographers who use cameras with up to full-frame sensors for wide-field deep-sky imaging. It reduces the 94EDPH's effective focal length to 414mm.

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฿10,990.00

*PREORDER* Askar 0.7x Full-Frame 3" Reducer for 107PHQ and 130PHQ Telescopes

Askar 0.7x Full-Frame 3" Reducer for 107PHQ and 130PHQ Telescopes

Askar’s new-launched 3” 0.7x full-frame reducer adapts for 107PHQ & 130PHQ. It has a triplet design with one ED glass.

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฿11,990.00

Sharpstar 2" Quaduplet 1x MPCC Coma Corrector for f/3-f/6 Newtonian Reflectors with M48 Thread

Following the advent of 0.95x coma corrector for Newtonian reflector, SHARPSTAR optics has well received the favor of customers with high praise.

A new 1x full-frame coma corrector is now available to meet the needs of different market segments. Optimized for the aberration correction, it adopts a new Quadruplet air-spaced design, which includes an extra-low dispersion lens, same as the 0.95x, it features 2" with 55mm focal length, which is very convenient and simple to connect your imaging equipment.

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฿11,990.00

PREORDER ZWO FF107APO / FF130APO 0.7× Universal Reducer

FF107APO/FF130APO 0.7× Universal Reducer

ZWO has released a new 3-inch 0.7× full frame reducer that is compatible with the FF107APO and FF130APO telescopes. It has a three-element optical design, including one element made of ED glass. Its reduction factor is 0.7, which gives the FF107APO a shortened focal ratio of f/4.9 and a shorter focal length of 524mm. This allows for less total integration time and a wider field of view, bringing more convenience and possibilities for your wide-field deep sky imaging.

The reducer has a standard 55mm back focus and comes with M68, M54, and M48 threaded adapters for easy attachment.

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฿12,500.00

Sky-Watcher 0.85x Reducer/Corrector for EvoStar 100

Sky-Watcher 0.85x Reducer/Corrector for EvoStar100ED

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 100 ED APO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction. Features:

55mm back focus
M48 threads (not standard T-thread)
Drops Evostar 100 from f/9 to f/7.56

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฿12,990.00

Sky-Watcher 0.85x Reducer/Corrector for EvoStar 80ED
Sky-Watcher 0.85x Reducer/Corrector for EvoStar 80ED

55mm back focus

M48 threads (not standard T-thread)

Drops ProED 80 from f/7.5 to f/6.3
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฿12,990.00

Sharpstar 3" Quadruplet 0.85x Reducer / Coma Corrector for f/3-f/6 Newtonian Reflectors

Sharpstar 30085NTRD coma corrector can shorten the original focal ratio of f/4 to f/3.4, greatly shortening the exposure time. Besides, the Sharpstar 30085NTRD coma corrector is considerately designed with many threads. At the front of the corrector, there is M82×1 male thread for the connection to our 3" focuser. At the back of the corrector, there is tapped with M76×1 male thread, M68×1 female thread and M54×0.75 female thread, which can be used to thread on our M54 to M48 camera adapter ring. The back-focus is standard 55mm, starting from the M54 thread(camera end) to focal plane.

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฿23,990.00

*PRE-ORDER* William Optics Flattener 68III for GT102, FLT132, GT153

William Optics Flattener 68III for GT102, FLT132, GT153 (Pre-order only)

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฿24,990.00

*PRE-ORDER* William Optics Flattener 7A for GT102, FLT132, GT153

William Optics Flattener/Reducer 7A

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฿25,990.00

*PRE-ORDER* William Optics Flattener/Reducer 8 for GT153, FLT 132, 102GTS

William Optics Flattener/Reducer 8 for GT153, FLT 132, 102GTS

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฿29,990.00