Astro-Physics

Astro-Physics

2" Visual Back threads onto the 3.25" rear cell of the Celestron 11" or 14" SCTs. (ADASCTLC)

This 2" visual back threads onto the rear cell of 10" to 14" Celestron SCTs with 3.25" male threads

Astro-Physics

2" Visual Back threads onto 9.25" or smaller SCT standard rear cell (ADASCT)

This visual back fits rear cells that have a 2" opening with a 24 TPI (threads per inch) male thread

Astro-Physics

2" Adapter to use SCT accessories - for 2.7" drawtubes (ADA204)

If you have thread-on accessories for an SCT and own one of our refractors, a Ritchey-Chretien with

Astro-Physics

Thin 2" Adapter with brass locking ring and 3 large thumbscrews. Use when you need 11/32" more in-travel. (ADA20132)

Use this adapter for critical applications and heavy loads where more in-travel is required. This ad

Astro-Physics

2" Adapter with Brass Locking Ring (ADA2003A)

Custom CNC machined thumbscrews provide an elegant update to our 2" compression adapter. It features

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1.25" Adapter with Brass Locking Ring (ADA125)

The 1.25" adapter is included with our focusers (and refractors); however, we also offer it as an ac

Astro-Physics

3.5" Focuser to 2.7" Adapter. Net Spacing Distance: 0.281" (7.14mm). (A5012)

May 31, 2021 - Part # changed to ADA35DL-27  to more clearly describe its function.  &nbs

Astro-Physics

Adapter to use 2.7" Focuser - 2.7" overall length (A1025-B)

This adapter was designed for owners of our 155EDFS StarFire refractor who are looking for more focu

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2"/T-2 Adapter attaches to T-thread (ADAT2)

This 2"/T-2 Adapter with brass locking ring is manufactured by Astro-Physics. It is used with the Ba

Astro-Physics

Takahashi Adapter for Astro-Physics Quick Release Bases (QRBATAK-A)

We have designed this Takahashi Adapter to allow our Guider and Finder Brackets to be used with Taka

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Finder Bracket Male Dovetail Base (needs QRBASEM) (A3251-C)

Our male dovetail base is a versatile accessory - an integral part of our Quick Release Finder Brack

Astro-Physics

10x60 Quick Release Finder Bracket. Needs QRBASE, QRBASES, QRBASED or QRBASEM (S1060QRM)

This stylish quick release finder bracket was developed by Astro-Physics specifically for the 10 x 6

Astro-Physics

10 x 60 Quick Release Guider Bracket. Needs QRBASEG also shown in photo. (S1060QRGB)

If you already own the Baader 10 x 60 Vario- Finder (1060VQ), or a similar size guidescope, then thi

Astro-Physics

2.7" Prime Focus Field Flattener for 140 f/7.5 StarFire EDF, 130 f/8.35 StarFire EDT, 155 f/7 StarFire EDFS, Star130ED, Star12ED, 5" f/8 StarFire and 5" f/8 Standard (67PF582)

Our 2.7" Field Flattener can be coupled to a variety of different cameras for truly superb photograp

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2.7" Prime Focus Field Flattener for 130 f/6.3 StarFire GT (67PF562)

December 18, 2022. The 67PF562 has been replaced by the newer versions that were designed to optimiz

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2.7" Prime Focus Field Flattener for 105 Traveler EDT/EDFS (67PF462)

December 2021: The 67PF462 is now out of stock and is no longer available. We recommend the Field Fl

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2.7" Threaded Cover (for Female Threads). Fits 2.7" Drawtube, 27TVPH, and all other accessories with 2.7" female threads (A1005)

This versatile cover was designed to protect your focuser from gathering dust when not in use. It ha

Astro-Physics

F7.7 Field Flattener for 160f7.5 StarFire EDF. Also need one of the adapters listed in description (160FF)

As of 04-23-21, the 160FF has been discontinued.  The following historical information is prov

Astro-Physics

4" to 3.5" Adapter with Thumbscrews for 4" Focuser to use QUADTCC (ADA435)

Use the 0.72x QuadTCC or 3.5" Field Flattener with your 4” Focuser! This adapter will allow o

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Extension with Brass Locking Ring for 4" Focuser (4FOCEXT)

This accessory provides 2.2" of extension with an overall length of 3". It is typically used in lieu

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2" Extension Tube with Brass Locking Ring, 1.75" long, 48mm threads (ADA202)

This extension slips into a 2" opening and can be used with 2" accessories or the 1.25" adapter. It

Astro-Physics

Threaded 2.7" Extension with Internal T-thread. For use with BPFFC, BARCON and other accessories with male T-threads. The maximum OD of the T-thread accessory is 2.5". (A3511)

May 31, 2021 - Part # changed to BH27-INT42 to more clearly describe its function.    Re

Astro-Physics

2" Extension Tube with Brass Locking Ring, 3.6" long (EXTTLR)

Use this extension when you require additional length. It slips into a 2" opening and can be used wi

Astro-Physics

2.7" Thread-On Extensions for Astro-Physics Focusers and Accessories (A3502-A, A3503-A, A3504-A, A3505, A3506, A1008-A)

 May 31, 2021 - Part # changed to more clearly describe its function. Refer to the chart b

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Nikon Camera Adapter with large 1.73" (44mm) diameter stainless steel bayonet. For 92FF and 92TCC (DSLR25NIK)

The DSLR25EOS and DSLR25NIK  adapters are designed for attaching your Canon EOS and Nikon

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Canon EOS Camera Adapter with large 1.875" diameter stainless steel bayonet. For 92FF and 92TCC (DSLR25EOS)

The DSLR25EOS and DSLR25NIK  adapters are designed for attaching your Canon EOS and Nikon

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Nikon Camera Adapter with large 1.73" (44mm) diameter stainless steel bayonet. To be used with the 175FF, 160FF, 13035FF, 175TCC, 160TCC, 155TCC and all QUADTCC Telecompressor Correctors. (ADATCCNIK)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF and 13035FF) and Telecompress

Astro-Physics

Canon EOS Camera Adapter with large 1.875" (47.6mm) diameter stainless steel bayonet for Canon auto-focus EOS SLR cameras. To be used with 175FF, 160FF, 13035FF, 175TCC, 160TCC and 155TCC and all QUADTCC Telecompressor Correctors. (ADATCCEOS)

Designed to be used with: Dedicated CCD Field Flatteners (175FF, 160FF and 13035FF) and Telecompress

Astro-Physics

6x7 Outer Bayonet for AP 2.7" Thread - attaches 67RT--, A3512, ADA671, ADA672, 67RLEOS, 67RLNIK, A1260, A1261 and A1262 to AP 2.7" Thread including 27TVPH (ADA2767)

This adapter greatly increases the versatility and functionality of your imaging system. It was desi

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6x7cm Pentax Camera Adapter for use with 27TVPH Telecompressor (ADA67P)

Thread this adapter into place, then use the ring shown on the right-hand side of the adapter to loc

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Nikon Camera Adapter with large 1.73" (44mm) diameter stainless steel bayonet. To be used with 2.7" and 4" Prime Focus Field Flatteners (except 160FF). (67RLNIK)

Designed to be used with: Current 2.7” Prime Focus Field Flatteners (67PF462, 67PF562 and 67PF

Astro-Physics

Canon EOS Camera Adapter with large 1.875" (47.6mm) diameter stainless steel bayonet for auto-focus EOS SLR cameras. To be used with 2.7" and 4" Field Flatteners (except 160FF). (67RLEOS)

Designed to be used with: Current 2.7” Prime Focus Field Flatteners (67PF462, 67PF562 and 67PF

Astro-Physics

Eyepiece Projection Camera Adapter without T-Ring (EPCT)

Astro-Physics Eyepiece Projection Camera Adapter is a two-part adapter. Use this unit with your film

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SLR Camera Adapter (35mm and digital) with Canon T-Ring to use with 2.7" and 4" Field Flatteners except 160FF (67RTCAN)

All 67RT adapters have been discontinued.  If you have a Canon EOS or Nikon, You may wish to co

Astro-Physics

Adapter to use with Small Cameras with 2" Nosepiece Adapter for CCD Field Flatteners and Telecompressor Correctors (ADATCC2)

Dedicated CCD Field Flatteners (175FF, 160FF and 13035FF) and Telecompressor Correctors (175TCC, 160

Astro-Physics

0.72x Quad Telecompressor Corrector for TEC 180 Refractor (QUADTCC-TEC180)

The QUADTCC-AP130 is now sold as two separate part numbers: QUADTCC and EXT327-16.0.&

Astro-Physics

0.72x Quad Telecompressor Corrector for TEC 160 Refractor (QUADTCC-TEC160)

The QUADTCC-AP130 is now sold as two separate part numbers: QUADTCC and EXT327-17.0.&

Astro-Physics

0.72x Quad Telecompressor Corrector for TEC 140 Refractor (QUADTCC-TEC140)

The QUADTCC-AP130 is now sold as two separate part numbers: QUADTCC and EXT327-18.3.&

Astro-Physics

2.7" Photo-Visual Telecompressor (0.75x) (27TVPH)

We have increased the versatility of our telecompressor (also called a focal reducer) by designing a

Astro-Physics

F/6.1 CCD Telecompressor Corrector for 175 mm f/8 StarFire EDF (175TCC)

The 175TCC is no longer available. We suggest the following combination as an alternative:  4"