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Astro-Physics

Adapters to use 2.7" or 4" Field Flatteners with CCD and DSLR Cameras or Accessories


  • 4000

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Description

Adapters to use 2.7" or 4" Field Flatteners with your Favorite
CCD and DSLR Cameras or Accessories (A1260, A1261, A1262, A1263, A1265)

The most discriminating CCD imagers with large chips may wish to use our field flatteners for the best possible results at the edge of the field. These adapters will preserve the correct spacing from the field flattener to the focal plane of your CCD camera. Choose the correct length for your system. Spacing distance can be refined by adding one of our many Thread-on Extensions. For owners of the SBIG STL Series of large format CCD cameras, we suggest the special STL Series adapters (ADA671 & ADA672) below for both perfect spacing and minimal vignetting.

Important: There are now a huge variety of CCD cameras, filter wheels and other accessories on the market, and all of them have different dimensions in terms of their optical backfocus or light path distance. Even different filter choices will affect the optical distance because of the indexing effect of the filter itself. It is important that you know the specifications of your own particular equipment before deciding on an adapter. The information below provides guidelines - NOT inviolable laws.

Diagrams and Instruction Sheets:
Astro-Physics Prime Focus Field Flatteners
- Exploded diagram showing these CCD adapters with the field flatteners and a variety of other accessories. Note that this is a PDF file. 
Installing the CCD Adapter to Use the 2.7" or 4" Field Flatteners with a CCD Camera
- Instruction sheet in PDF format.

A1260
CCD Adapter to use our 2.7" or 4" Field Flattener with 2.7" accessories. It is generally used in combination with our 2.7" extensions to match spacing requirements for CCD cameras. ADA2003 or ADA20132 Thumbscrew Adapters can be used to accept the 2" nosepiece of cameras. (Originally intended to use with your SBIG ST-series CCD cameras with a gap of approximately 0.25" between the Color Filter Wheel and the camera.)

This adapter has a net spacing distance of 0.47" (11.9 mm).
A1263
CCD Adapter to use our 2.7" or 4" Field Flattener with 2.7" accessories. It is generally used in combination with our 2.7" extensions to match spacing requirements for CCD cameras. ADA2003 or ADA20132 Thumbscrew Adapters can be used to accept the 2" nosepiece of cameras.

This adapter has a net spacing distance of 0.62" (15.7 mm).
A1261
CCD Adapter to use our 2.7" or 4" Field Flattener with 2.7" accessories. It is generally used in combination with our 2.7" extensions to match spacing requirements for CCD cameras. ADA2003 or ADA20132 Thumbscrew Adapters can be used to accept the 2" nosepiece of cameras. (Originally intended to use with your SBIG ST-series CCD cameras with the Color Filter Wheel closely coupled to the CCD camera.)

This adapter has a net spacing distance of 0.72" (18.3 mm).

A1265
CCD Adapter to use our 2.7" or 4" Field Flattener with 2.7" accessories. It is generally used in combination with our 2.7" extensions to match spacing requirements for CCD cameras. ADA2003 or ADA20132 Thumbscrew Adapters can be used to accept the 2" nosepiece of cameras.


This adapter has a net spacing distance of 0.92" (23.4 mm).

A1262
CCD Adapter to use our 2.7" or 4" Field Flattener with 2.7" accessories. It is generally used in combination with our 2.7" extensions to match spacing requirements for CCD cameras. ADA2003 or ADA20132 Thumbscrew Adapters can be used to accept the 2" nosepiece of cameras. (Originally intended to use with your SBIG ST-series CCD cameras without a Color Filter Wheel.)


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