ASTRO-PHYSICS
Adapters for CCD Field Flatteners (175FF and 160FF) and
CCD Telecompressor Correctors (175TCC, 160TCC and 155TCC)

Adapter for SBIG STL Series Camera with Five-Position Filter Wheel (ADATCC1)
Adapter for Some Smaller Cameras with 2" Nosepiece (ACATCC2)
Adapter for SBIG STL Series Camera with Eight-Position Filter Wheel (ADATCC3)
Adapter to attach QSI’s 500 and 600 series WSG Cameras (A3513)
SLR Camera Adapter with Large 1.875" Diameter Canon EOS Bayonet (35mm and digital) (ADATCCEOS)

Adapter for SBIG STL Series Camera with Five-Position Filter Wheel for use with 175 and 160 CCD Field Flatteners and 175, 160 and 155 CCD Telecompressor Correctors (ADATCC1)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF) and Telecompressor Correctors (175TCC, 160TCC, 155TCC)

This adapter was developed with two primary goals in mind: to reduce the vignetting caused by the use of a standard 2" nosepiece on the large CCD chip of the STL11000, and to maintain the critical distances to the focal plane required by the sophisticated and complex optics of the Field Flattener and the Telecompressor Correctors listed above.

The adapter is machined from a single piece of aluminum for strength and rigidity and bolts directly to the camera. This allows removal of the 2" nosepiece, and the much larger opening of our adapter leaves the camera's own internal filters as the only possible source of vignetting on the edges of the CCD chip. The ADATCC1 is black anodized for a rich finish.

This adapter has a net spacing distance of 1.71" (43.4 mm).

Parts Included:
Four 6-32x1/2" socket head cap screws for attachment to the STL series camera.

Documentation:
Refer to the following diagrams for additional information regarding spacing:
175 & 160 CCD Field Flattener Spacing Requirements
0.76x CCD Telecompressor Corrector Spacing Requirements

Note: This adapter is similar to adapters being made for use with all of our other 2.7" and 4" Prime focus Field Flatteners and to use with the 2.7" to 6x7 Outer Bayonet Adapter (ADA2767). They are NOT interchangeable.

Camera not Included.

ADATCC1 $70.00 in stock
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Adapter for Some Smaller Cameras with 2" Nosepiece for use with 175 and 160 CCD Field Flatteners and 175, 160 and 155 CCD Telecompressor Correctors (ADATCC2)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF) and Telecompressor Correctors (175TCC, 160TCC, 155TCC)

The ADATCC2 was designed to allow owners of smaller CCD cameras that employ 2” nosepieces to use the CCD Field Flatteners and Telecompressor Correctors shown above.

Important Considerations:

Nosepieces: Nosepieces exceeding 1.0” (25.4 mm) in length MUST NOT be used with any of the Telecompressor Correctors since they will strike the optics.

Spacing: Use of the ADATCC2 with your particular camera will require you to calculate the total optical backfocus of your system. The ADATCC2 will add spacing of 1.7" (43.2 mm) to your camera with the 160FF and 175FF, and will add 1.5" (38.1 mm) with the 175TCC, 160TCC or 155TCC. Some cameras may already have too much inherent backfocus to be used effectively with this adapter. Others may require a small amount of extension to be added. However, bear in mind that smaller cameras with smaller-sized sensors are a bit less sensitive to the spacing requirements.

Documentation:
Refer to the following diagrams for additional information regarding spacing:
175 & 160 CCD Field Flattener Spacing Requirements
0.76x CCD Telecompressor Corrector Spacing Requirements

The ADATCC2 is machined out of solid aluminum, and is then fitted with our brass compression ring and with three large thumbscrews for a rock solid grip on your camera. For even greater stability, we recommend replacing the camera's nosepiece with our Tapered 2" Nosepiece (AP16T).

ADATCC2 $70.00 in stock
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Adapter for SBIG STL Series Camera with Eight-Position Filter Wheel for use with 175 and 160 CCD Field Flatteners and 175, 160 and 155 CCD Telecompressor Correctors (ADATCC3)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF) and Telecompressor Correctors (175TCC, 160TCC, 155TCC)

No sooner than we had finished production of the first ADATCC1 adapters, SBIG came out with a new 8-position filter wheel for the STL series cameras. This filter wheel, the SBIG FW8-STL, was not only bigger around, it was thicker, so we went back to the drawing board and designed a shorter version so that the critical spacing between optics and CCD chip could be maintained. This version, the ADATCC3 has the same robust machined construction and rich, black anodizing of the ADATCC1. Use this adapter ONLY if you have an STL camera with the 8-position filter wheel.

This adapter has a net spacing distance of 1.36" (34.5 mm).

Parts included:
Four 6-32x1/2" socket head cap screws for attachment to the STL series camera .

ADATCC3 $70.00 in stock
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Adapter to attach QSI’s 500 and 600 series WSG Cameras to the 175 and 160 CCD Field Flatteners and 175, 160 and 155 CCD Telecompressor Correctors (A3513)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF) and Telecompressor Correctors (175TCC, 160TCC, 155TCC)

This adapter is specifically designed to attach the above Field Flatteners and Telecompressor Correctors to QSI’s 500 and 600 series WSG medium format cameras. It has been precisely machined to maintain the critical spacing to the focal plane at the perfect 80.8mm. It utilizes the larger thread size of the QSI 2.156” adapter plate in order to minimize vignetting when using fast focal ratio telescopes. (2” nosepieces and T-threads are often too restrictive for today’s larger sized detector chips when used with fast scopes.)

It also provides a rigid method of attaching the camera to the optical system. This ensures the elimination of flexure from this part of the system.

This adapter has a net spacing distance of 1.11" (28.2 mm).

A3513 $80.00 in stock
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SLR Camera Adapter with Large 1.875" Diameter Canon EOS Bayonet (35mm and digital) for use with 175 and 160 CCD Field Flatteners and 175, 160 and 155 CCD Telecompressor Correctors (ADATCCEOS)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF) and Telecompressor Correctors (175TCC, 160TCC, 155TCC)

This SLR Camera Adapter for Canon auto-focus 35 mm and digital EOS SLR cameras with its large 1.875" (47.6 mm) inside diameter EOS bayonet minimizes vignetting on full frame chips and on 35 mm film by eliminating the restrictive 1.5” (38 mm) diameter standard T-thread interface. Since the introduction of Canon’s full 35 mm frame digital SLR’s, people have been asking for a solution to the vignetting caused by the small clear aperture of the standard T-ring interface that is universally used to connect telescopes to SLR cameras. This was especially true for Astro-Physics telescope owners who were using the 160 Field Flattener or the 160 or 155 Telecompressor Corrector. What good were pinpoint stars to the edge of a wide field when the edge of that field was darkened by the T-ring’s vignetting effect? So, in keeping with our commitment to imagers, we introduced a solution!

The adapter body is precision-machined aluminum and is anodized black. The bayonet is machined stainless steel, and both the body and the bayonet are baffled and painted flat black on the inside.

The ADATCCEOS will place the camera's sensor (or film) at the perfect 80.8 mm distance from the mating surface of the 175 and 160 Field Flattener or the 175, 160 or 155 Telecompressor Correctors.

The inside of the adapter has been threaded to accept standard 2" filter cells with 48 mm threads. Be very careful if using filters with any of the TCC Telecompressor-Correctors, as they have very limited clearance to the back optical element. You could stack multiple filters with the 175 or 160 Field Flattener (175FF or 160FF), but DO NOT stack multiple filters with the 175TCC, 160TCC or 155TCC!

Please note: this adapter can NOT be used with Canon manual-focus 35 mm cameras (series FD and earlier lenses).

ADATCCEOS $135.00 in stock
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Astro-Physics, Inc.
11250 Forest Hills Road, Machesney Park, IL 61115, U.S.A.
Phone: 815-282-1513 Fax: 815-282-9847