All Products

Astro-Physics

3.5" Prime Focus Field Flattener for 140 TEC Refractors or 140 StarFire with 4" or 3.5" Focuser (14035FF)

December 2022 - This field flattener was introduced to optimize performance of the 140mm refractors

Astro-Physics

3.5" Prime Focus Field Flattener for 130GTX serial #130GTX-900 and higher (also 886, 887, 888) and any 130EDFGT upgraded to 3.5" Focuser (13035FF-3)

December 2022 - Two new field flatteners were introduced to optimize performance of all 130GTX scope

Astro-Physics

3.5" Prime Focus Field Flattener for 130GTX serial #130GTX-600 to 130GTX-885, 889 & 890 (13035FF-2)

December 2022 - Two new field flatteners were introduced to optimize performance of all 130GTX scope

Astro-Physics

Threaded Cap for Right-Angle Polar Scope Adapter (M16106-A)

We are making this cap available separately as a spare in case you lose the one included with the Ri

Baader Planetarium

Mark V Binocular Viewer from Baader Planetarium (BPMARKVS)

The Mark V Binocular Viewer is the culmination of years of research and development, originally by C

Astro-Physics

3.5" Prime Focus Field Flattener for 130GTX or prior 130EDFGT upgraded to 3.5" Focuser (13035FF)

December 18, 2022. This version of the 13035FF has been replaced by the newer versions that were des

Astro-Physics

EPROM Microcontroller Chip w/ V2 Version Firmware for GTOCP3 Control Box, Extraction Tool (CHIPKITV2)

If you already own the GTOCP3 control box, you may wish to consider upgrading the ROM chip to take a

Kendrick Astro Instruments

Kendrick Sun Finder (KS6000-D-SUN)

April 2025. This carbon fiber Sun Finder was introduced with the new line of Kendrick Astro DSF sola

Kendrick Astro Instruments

Kendrick Visual AstroSolar Filter for 92mm f6.65 Stowaway. Fits 90-118mm OD, 80mm filter aperture. (KS6004-DSF)

April 2025. We are pleased to offer a new line of solar filters from Kendrick Astro. Kendrick "D-Ta

Kendrick Astro Instruments

Kendrick Visual AstroSolar Filter for 110GTX and Traveler. Fits 122-150mm OD, 110mm filter aperture. (KS6007-DSF)

April 2025. We are pleased to offer a new line of solar filters from Kendrick Astro. Kendrick "D-Ta

Astro-Physics

190mm f/6 StarFire CS (190CS)

Description and Design Goals Introducing the 190mm f/6 StarFire Christen Superachromat (190CS).&n

Astro-Physics

155mm f/6 StarFire CS (155CS)

Description and Design Goals Introducing the 155mm f/6 StarFire Christen Superachromat (155CS).&n

Astro-Physics

1150GTO

Why an 1150GTO? The 1150GTO is our new mid-sized observatory-class mount that delivers reliable ope

Astro-Physics

8" Extension for all 6" Piers, Tripods and Tripod Adapter

These beautifully machined extensions for your 6" Eagle Folding Pier, 6" Portable Piers and all trip

Astro-Physics

4" Extension for all 6" Piers, Tripods and Tripod Adapter

These beautifully machined extensions for your 6" Eagle Folding Pier, 6" Portable Piers and all trip

Massimo Riccardi

ATMOS - ATM Optical Design and Analysis Software (ATMOS895)

October 21, 2024 Massimo Riccardi, author of ATMOS, is now offering this optical design and analysis

Powerwerx

30 Amp Powerwerx 14.1V Regulated Power Supply (PS141V30A)

The Powerwerx Switching Power Supply Model SS-30DV is designed to supply 25 Amps continuous and 30 A

Astro-Physics

Tri-TCC Telecompressor Corrector for 130GTX serial # 130GTX-600 to 130GTX-885, 889, 890 (13035TCC-2)

The 13035TCC-2 Tri-TCC was introduced in February 2025 in response to requests for higher performanc

Astro-Physics

Handle with Dovetail Slot for Guidescope and Finder Brackets, PICQRM2 & STARFMD. Requires 6.3" ring spacing and 1/4-20 threaded holes. (QRHANDLE)

It is no longer necessary to choose between using our 6.3" Handle (63HANDLE) or our Dovetail Accesso

Astro-Physics

Step-Down Adapter from 3.27" to 68mm for CMOS and CCD Cameras (ADA327-68)

In July 2024, we added several adapters to simplify your CMOS or CCD imaging train when used with th

Astro-Physics

Step-Down Adapter from 3.27" to 54mm for CMOS or CCD Cameras (ADA327-54)

In July 2024, we added several adapters to simplify your CMOS or CCD imaging train when used with th

Astro-Physics

Step-Down Adapter from 3.27" to 48mm for CMOS or CCD Cameras (ADA327-48)

In July 2024, we added several adapters to simplify your CMOS or CCD imaging train when used with th

Astro-Physics

0.79x Tri-TCC Telecompressor Corrector for 130GTX serial # 130GTX-900 or higher (also 886,887,888) and any 130EDFGT upgraded to 3.5" Focuser (13035TCC-3)

The 13035TCC-3 Tri-TCC was introduced in July 2024 in response to requests for higher performance wh

2" Adapter for 2.5" DoveLoc; Allows use of 2" Accessories; Included with 92mm F6.65 Stowaway and for use with Traveler (ADA2520DL)

The ADA2520DL adapter serves as the 2.5” Doveloc component for visual observing. It has the Do

3.5" Focuser Drawtube Dust Cap - Zero-Profile Delrin Cap Fitting the 3.5" Doveloc Adapter (A5071)

The A5071 Dust Cap is a zero-profile part that was originally designed for the Starfire 110GTX to mi

Kendrick Astro Instruments

Kendrick USB 3.0 7-Port Active Charging Hub, 12V (KDUSB3)

Information from Kendrick Astro website. Why use a USB Hub? There are an impressive number of

Baader Planetarium

Baader IR-Pass Filter 2" (685nm) (BPIRP2)

Baader IR-Pass Filer HWB 685nm Reduces the effect of seeing resulting in a much sharper image. T

Baader 1.25” UHC-L / Ultra-L-Booster Filter (BPUHCL125)

The Baader UHC-L filter is the classic all-round "light pollution rejection filter". This UHC-L filt

Nikon Z Mirrorless Camera Adapter with large diameter stainless steel “Z” lens bayonet. For all 3.5" and 4" most Field Flatteners and TCC Telecompressor Correctors. (ADANIK-Z)

In March 2024, we introduced adapters for popular mirrorless Nikon Z and Canon EOS RF cameras to be

Canon EOS Mirrorless Camera Adapter with large diameter stainless steel “RF” Lens bayonet. For all 3.5" and most 4" Field Flatteners and TCC Telecompressor Correctors. (ADACAN-RF)

In March 2024, we introduced adapters for popular mirrorless Nikon Z and Canon EOS RF cameras to be

Nikon Z Mirrorless Camera Adapter with large diameter stainless steel “Z” Lens bayonet. For Stowaway 92FF and 92 TCC (NIK25-Z)

The NIK25-Z  adapter is designed for attaching your Nikon mirrorless cameras to the 92 Stowaway

Canon EOS Mirrorless Camera Adapter with large diameter stainless steel “RF” Lens bayonet. For Stowaway 92FF and 92 TCC (CAN25-RF)

The CAN25-RF adapter is designed for attaching your Canon EOS mirrorless camera to the 92 Stowa

Baader 2” UHC-L / Ultra-L-Booster Filter (BPUHCL2)

The Baader UHC-L filter is the classic all-round "light pollution rejection filter". This UHC-L filt

Kendrick DEWMINATOR with Four Adjustable Heater Ports

Kendrick’s mid-level controller is the perfect choice for those who are budget conscious, but

Standard Pier Adapter for 1200 Mount, Fits 10" Astro-Physics Piers (1200SPA)

The 1200SPA is a replacement for your 1200 Standard Pier Adapter if yours is damaged. The base is 9.

1.10x Field Flattener for 110mm f/6 StarFire GTX (110FF)

Designed for: 110mm f/6 StarFire GTX Application: Ideal for digital imaging with DSLR and

Baader Ultra Short SCT to T-Adaptor, 9mm optical length (BPSC2T2)

This adapter allows you to connect your T-2 thread (42mm) accessories to the larger SCT thread (2&rd

Baader 7.5nm Solar Continuum 1.25" Filter. MUST be used with a white-light filter in front of main telescope optics (BPSC125-7.5)

This filter is available in 1.25" (BPSC125-7.5) or 2" (BPSC2-7.5) sizes. Baader 1.25" Solar Conti

Baader 7.5nm Solar Continuum 2" Filter. MUST be used with a white-light filter in front of main telescope optics (BPSC2-7.5)

This filter is available in 1.25" (BPSC125-7.5) or 2" (BPSC2-7.5) sizes. Baader 1.25" Solar Conti

Baader 2" BDS Steeltrack® M48a Adapter (BPS582M48)

The Baader 2" BDS Steeltrack® M48a Adapter is used in place of the 2” ClickLock® eyepi