
Welcome to Astro-Physics
Dedicated to Craftsmanship

Check out our new Mach2GTO!
Tarantula Nebula

1100GTO with Absolute Encoders
M27, Dumbell Nebula

M78

NGC 1365
Please drop by to see us at the April 2023 Northeast Astro-Imaging Conference (NEAIC) and Northeast Astronomy Forum (NEAF). For more information: NEAFexpo.com
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
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

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)
This 92FF field flattener was designed for the 92 Stowaway (92F665) and 105mm Traveler (105EDF, lega
Most Popular Products

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

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
2.7" Thread-On Extensions for Astro-Physics Focusers and Accessories (EXT27-)
This series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, while pr

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
Accessory Trays for Piers and Tripods
Beautiful, functional and rugged - the various components of the Astro-Physics Pier Accessory Tray S

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

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
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
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
New Products
Astro-Physics
0.83x CCD Telecompressor Corrector for 110mm f/6 StarFire GTX (110TCC)
Designed for: 110mm f/6 StarFire GTX Application: Ideal for digital imaging with DSLR an

Astro-Physics
Step-Down Adapter with 2.7" Male Threads to 68 mm Male Threads (ADA27-68)
We have designed a series of adapters to assist imagers obtain back spacing distances for their came

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
2.7" Prime Focus Field Flattener for 130 f/6.3 StarFire GT with Original 2.7" Focuser (13027FF-GT)
December 2022 - This field flattener was introduced to optimize performance of the 130 f6.3 StarFire

Astro-Physics
3.5" Prime Focus Field Flattener for 130GTX serial #130GTX-900 and higher (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-899 or any 130EDFGT upgraded to 3.5" focuser (13035FF-2)
December 2022 - Two new field flatteners were introduced to optimize performance of all 130GTX scope

Astro-Physics
Astro-Physics Embroidered Knit Cap, Dark Navy (APCAPW-N)
Keep Warm with our Knit Winter Cap with Cuff What better way for an astronomer to stay warm on thos

Astro-Physics
Picatinny Male Dovetail Base for Multi-Reticle Reflex Finders (Needs QRBASEM) (PICQRM2)
Let’s face it…the Stowaway is a small scope and you don’t want to use a finder that is almost as big

Astro-Physics
14 lb. Counterweight for 1.125" Shaft - 400, 600E, 800 and Mach1 (14SLCWT)
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the

Astro-Physics
9 lb. Counterweight for 1.125" Shaft - 400, 600E, 800 and Mach1 (9SLCWT)
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the

Astro-Physics
6 lb. Counterweight for 1.125" Shaft - 400, 600E, 800 and Mach1 (6SLCWT)
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the

Astro-Physics
30 lb. Counterweight for 1.875" Shaft - Mach2, 900, 1100, 1200 & 1600 (30SCWT188)
Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the