
Welcome to Astro-Physics
Dedicated to Craftsmanship

Check out our new Mach2GTO!
Tarantula Nebula

1100GTO with Absolute Encoders
M27, Dumbell Nebula

M78

NGC 1365
Featured Products

Astro-Physics
GTOCP4 Control Box for all GTO Mounts, except Mach2GTO. Order new 2-Pin power cable (GTOCP4)
All GTO mounts(except the Mach2GTO) produced since 1998 can be easily upgraded!!! The GTOCP4 Up

Astro-Physics
GTO Keypad with Keypad Protector for all GTO mounts. Serial # of mount required for purchase. (KEYVFK2)
The Keypad is a self-contained handheld computer that allows you to control all essential telescope

Astro-Physics
6" Eagle Adjustable Folding Pier (EAGLE6-EZ)
The Astro-Physics 6" Eagle Folding Pier is a versatile work-of-art as well as a totally practical to

Astro-Physics
16" Easy-Balance Dovetail Saddle Plate with 3 clamps - 1600, 1100, 1200, 900, Mach1 and Mach2 (DOVELM162)
This 16" Dovetail Saddle Plate, designed and manufactured by Astro-Physics, is the ultimate in versa

Astro-Physics
10" Saddle Plate for Both D-Style and V-Style Bars (DOVEDV10)
This 10” dual-style saddle plate fills the need of customers who have multiple scopes. Often,

Astro-Physics
0.8x CCD Telecompressor for 92mm Stowaway and 105mm Traveler. Requires 2.5" DoveLoc End Cap that comes with 92mm F6.65 Stowaway or EC2725 for Traveler. (92TCC)
The 92 Stowaway’s Telecompressor Corrector (92TCC) is used to provide 0.80x image reduction while co

Astro-Physics
Right-Angle Polar Alignment Scope with LED Illuminator (RAPAS)
This revolutionary design has been enthusiastically praised for its ease of use and accuracy by cust

Astro-Physics
16" Versatile Dovetail Plate for D-Style Dovetail Saddle Plates (SBD16)
This 16" Versatile Dovetail Plate is exceptionally strong, providing a rigid structure to your

Baader Planetarium/Astro-Physics
10 x 60 Vario Finder with Quick Release Guider Bracket Kit. (1060VGKIT)
The Astro-Physics designed Guider Bracket greatly expands the versatility and functionality of the B

Astro-Physics
12" Dovetail Plate for D-Style Saddle Plates (SBD12)
This 12" Dovetail Sliding Bar was designed with short instruments in mind. The middle portion of the

Astro-Physics
CCD Telecompressor (CCDT67)
Originally developed to tame the focal length of our 10" f/14.6 Mak-Cass, this telecompressor is opt

Astro-Physics
MAXBRIGHT 2" Mirror Diagonal with Dialectric Coating and Brass Locking Ring (PMDMAX)
The Astro-Physics 2" MaxBright Diagonal was designed with several unique features to provide optimum
Most Popular Products

Astro-Physics
Counterweights for 1.875" Shaft - Mach2, 900, 1100, 1200 & 1600 (also Mach1 using optional shaft)
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the

Astro-Physics
Multi-Radius Base for Quick Release Finder Bracket & Accessories using Male Dovetail Base (A3251-C), including STARFMD. (QRBASEM)
This Quick Release base is designed to securely fit scopes from as small as 3” on up, so that it wil

Astro-Physics
Counterweights for 1.125" Shaft - 400, 600E, 800 and Mach1
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the

Astro-Physics
10" Saddle Plate for Both D-Style and V-Style Bars (DOVEDV10)
This 10” dual-style saddle plate fills the need of customers who have multiple scopes. Often,

Astro-Physics
16" Easy-Balance Dovetail Saddle Plate with 3 clamps - 1600, 1100, 1200, 900, Mach1 and Mach2 (DOVELM162)
This 16" Dovetail Saddle Plate, designed and manufactured by Astro-Physics, is the ultimate in versa

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

Future Technology Devices International
FTDI USB-to-Single Port Serial Adapter (USB1PFTDI)
We strongly recommend that you use a genuine FTDI USB-to-Serial Adapter. Do not use adapters that cl

Astro-Physics
CCD Telecompressor (CCDT67)
Originally developed to tame the focal length of our 10" f/14.6 Mak-Cass, this telecompressor is opt

Astro-Physics
MAXBRIGHT 2" Mirror Diagonal with Dialectric Coating and Brass Locking Ring (PMDMAX)
The Astro-Physics 2" MaxBright Diagonal was designed with several unique features to provide optimum

Astro-Physics
2" Advanced Convertible Photo-Visual Barlow (BARADV)
Our Advanced Convertible Barlow has a unique design that provides several configurations to increase

Astro-Physics
Flat Surface Tripod Adapter - attach 400, 600E, Mach1 and Mach2 to a flat surface (ADATRI)
This adapter is necessary to attach an Astro-Physics 400, 600E, Mach1GTO or Mach2GTO mount to a trip

Astro-Physics
Astro-Physics Embroidered Cap, Stone (APCAPES)
These attractive ball caps feature the Astro-Physics logo beautifully embroidered across the front.
New Products

Kendrick Astro Solar
Kendrick Visual AstroSolar Filter for 92mmf6.65 Stowaway. Fits 112-122mm OD, 102mm filter aperture. (KS6006-BL)
Limited quantities. Kendrick Astro plans to discontinue the Classic Solar Filter line due to higher

Astro-Physics
Counterweights for 1.875" Shaft - Mach2, 900, 1100, 1200 & 1600 (also Mach1 using optional shaft)
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the

Astro-Physics
92mm F6.65 Stowaway (92F665)
Astro-Physics introduced the redesigned Stowaway at the Northeast Astro-Imaging Conference on April

Astro-Physics
Astro-Physics Command Center - APCC Standard and Pro
The Astro-Physics Command Center (APCC) provides advanced mount control features useful for local or

Astro-Physics
Flat Surface Adapter with Flat Pier Plate - for Mach2, Mach1, 600E and 400 Mounts to use 8" Astro-Physics Portable Piers (ADATRI-8FP)
Ever find yourself wishing that you had a bigger mount? Short of a magical spell, you can maximize t

Astro-Physics
Flat Surface Adapter with Flat Pier Plate - for 1100 and 900 Mounts to use 10" ATS Piers (119FSA-10ATS)
Ever find yourself wishing that you had a bigger mount? Short of a magical spell, you can maximize t

Astro-Physics
Pier Adapter Knob Kit for 900 Mounts (9KBKIT)
This kit contains four machined and black-anodized Pier Adapter Knobs and 1/4"ID x 1"OD flat washers

Astro-Physics
Flat Surface Adapter with Flat Pier Plate - for Mach2, Mach1, 600E and 400 Mounts to use 8" ATS Piers (ADATRI-8ATS)
Ever find yourself wishing that you had a bigger mount? Short of a magical spell, you can maximize t

Astro-Physics
Standard Pier Adapter for 900 Mount, Fits 8" Astro-Physics Piers (900SPA)
The 900SPA is a replacement for your 900 Standard Pier Adapter if yours is damaged. The base is 7.73

Astro-Physics
0.72x Quad Telecompressor Corrector for 155f7 EDFS (QUADTCC-155)
Expand your field! Reduce your f/value, speeding up the collection of photons! And

Astro-Physics
Handle with 6.3" Spacing for 1/4-20 Threaded Holes, Ideal for Stowaway or 130 Refractor (63HANDLE)
Hey! Do you want a hand with that scope? Our CNC machined handle can help you safely tote your Stow
Astro-Physics
Counterweight Shaft Adapter with Stainless Steel Insert for Mach1GTO Mounts shipped since July 2014 (SM1CSA)
If your Mach1GTO mount is is frequently used as a portable mount, you may wish to consider upgrading