
Welcome to Astro-Physics
Dedicated to Craftsmanship

Check out our new Mach2GTO!
Tarantula Nebula

1600GTO with Absolute Encoders
M27, Dumbell Nebula

M78

NGC 1365
Seasons Greetings from all of us at Astro-Physics!!
Enjoy astronomy while social distancing and be safe during this holiday season.
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
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
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
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

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
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

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
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
Field Flattener for 92mm Stowaway and Traveler, Machined Covers. Requires 2.5" DoveLoc End Cap that comes with 92mm F6.65 Stowaway or 2725EC for Traveler (92FF)
The 92 Stowaway’s Field Flattener (92FF) is used to correct the field curvature that is inherent in
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-B), 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
2.7" Thread-On Extensions for Astro-Physics Focusers and Accessories
This series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, while pr

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
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
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

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

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
Power Cable Set with 2-Pin and Powerpole Connectors for GTOCP4 and GTOCP5 (CABPP4SET)
The power cable for the GTOCP4 or GTOCP5 (Mach2GTO only) can purchased as a set or the individual pa
New Products

Astro-Physics
13.7" x 1.875" Diameter Counterweight Shaft, Stainless Steel (M2043)
This shaft has a usable length of 13.7" and is designed to be used with our 5 lb. (5SCWT), 10 l

Astro-Physics
Step–Down Adapter with 2.7” Male Threads to 48mm Male Threads (ADA27-48)
We have added several new adapters to assist imagers obtain back spacing distances for their camera

Astro-Physics
Allows 2.7” Accessories to be Attached to the 3.27” Threads of CCD Flatteners & Telecompressor Correctors (ADA327-27)
We have added several new adapters to assist imagers obtain back spacing distances for their camera

Astro-Physics
Step–Down Adapter with 2.7” Male Threads to 2.156” Male Threads (ADA27-2156)
We have added several new adapters to assist imagers obtaining back spacing distances for their came

Astro-Physics
Step–Down Adapter with 2.7” Male Threads to 42mm Male Threads (ADA27-42)
We have added several new adapters to assist imagers obtain back spacing distances for their camera

Astro-Physics
6' Cable with Locking Connectors for GTOCP1, GTOCP2 and GTOCP3, Older Mounts and More (CABLPFPP)
We are pleased to offer our locking power cable with Powerpole connectors for our GTOCP1, GTOCP2 and

Powerwerx
18" Power Cable Extension with Cigarette Lighter Plug (CABPP18C)
The 18" Power Cable Extension with Cigarette Lighter Plug was designed to use with the following cab

Powerwerx
18" Power Cable Extension with Ring Terminals (CABPP18R)
The 18" Power Cable Extension with Ring Terminals was designed to use with the following cables that

Astro-Physics
6' Cable with 2-Pin Connector for GTOCP4 and GTOCP5 (CABPP6)
The power cable for the GTOCP4 or GTOCP5 (Mach2GTO only) can purchased as a set or the individual pa

Astro-Physics
Power Cable Set with Switchcraft and Powerpole Connectors for GTOCP3, Most Earlier Mounts and Telescope Fans. (CABPP123SET)
We are pleased to offer locking power cables with Powerpole connectors for our GTOCP1, GTOCP2 and GT

Astro-Physics
130GTX and 130EDFGT Focuser Cover, Felted (T13014F-B)
Felt-lined, machined aluminum cover for the focuser of the 130 StarFire GTX (130GTX) and 130 StarFir

Astro-Physics
130GTX and 130EDFGT Tube Cover for Focuser End of the Tube (T13012)
Threaded machined aluminum cover for the focuser end of the maintube of the 130 StarFire GTX (130GTX