Quick view 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 MSRP: Was: Now: $1,295.00 Add to Cart
Quick view Astro-Physics GTO Keypad with Keypad Protector - for GTOCP1, GTOCP2 and GTOCP3 Control Boxes. Serial # of mount required for purchase. (KEYVFK) This Keypad should only be purchased for use with the GTOCP1, GTOCP2 and GTOCP3 control boxes. This MSRP: Was: Now: $980.00
Quick view Astro-Physics GTO Keypad with Keypad Protector for GTOCP4 and GTOCP5 Control Boxes. Serial # of mount required for purchase. (KEYVFK2) This Keypad should only be purchased for use with the GTOCP4 and GTOCP5 control boxes with version P MSRP: Was: Now: $980.00 Add to Cart
Quick view 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 MSRP: Was: Now: $2,400.00 Add to Cart
Quick view 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 MSRP: Was: Now: $297.00 Add to Cart
Quick view 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. O MSRP: Was: Now: $240.00 Add to Cart
Quick view Astro-Physics 16.5" P-Style Dovetail Saddle Plate with Four Clamps -3600GTO, 1600GTO and 1200 (DOVEPW) This saddle plate was originally designed with the 3600GTO in mind; however, it is ideal for the 160 MSRP: Was: Now: $513.00 Add to Cart
Quick view Astro-Physics Absolute Encoder Kit for 1600GTO - Extended Temperature (16AE-4L-KIT) The photo above shows the 1100GTO with either version of the absolute encoders installed - standard MSRP: Was: Now: $6,310.00
Quick view Astro-Physics Absolute Encoder Kit for 1600GTO - Standard Temperature (16AE-4-KIT) The photo above shows the 1100GTO with either version of the absolute encoders installed - standard MSRP: Was: Now: $5,690.00 Add to Cart
Quick view Astro-Physics Absolute Encoder Kit for 1100GTO - Extended Temperature (11AE-4L-KIT) The photo above shows the 1100GTO with either version of the absolute encoders installed - standard MSRP: Was: Now: $6,510.00
Quick view Astro-Physics Absolute Encoder Kit for 1100GTO - Standard Temperature (11AE-4-KIT) The photo above shows the 1100GTO with either version of the absolute encoders installed - standard MSRP: Was: Now: $5,890.00 Add to Cart
Quick view 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 MSRP: Was: Now: $445.00 Add to Cart
Quick view 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 MSRP: Was: Now: $160.00 Add to Cart
Quick view 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 MSRP: Was: Now: $137.00 Add to Cart
Quick view Astro-Physics 23" P-Style Dovetail Plate, 7.65" Wide (SBPW23) Our robust P-style Dovetail Plate measures 7.65" at the widest portion of the dovetail and 1.2" thic MSRP: Was: Now: $377.00 Add to Cart
Quick view Astro-Physics 15" V-Style Wide Dovetail Bar for DOVEDV10 and other V-Style Saddle Plates (SBV15) This 15” long Vixen V-style dovetail plate is designed to add maximum strength and rigidity to MSRP: Was: Now: $75.00
Quick view Astro-Physics Right-Angle Polar Alignment Scope Adapter for Mach1GTO Mounts (RAPM1) Note: This adapter is not needed for the Mach1GTO mounts shipped beginning in 2014 (serial number M1 MSRP: Was: Now: $109.00 Add to Cart
Quick view Astro-Physics Right-Angle Polar Alignment Scope Adapter for 1200GTO Mounts (RAP1200) Our Right-Angle Polar Alignment Scope can be used with the Mach1GTO and all 900 and 1200 mounts (exc MSRP: Was: Now: $132.00 Add to Cart
Quick view Astro-Physics Right-Angle Polar Alignment Scope Adapter for 900GTO Mounts (RAP900) Special note regarding a select few 900 mounts: Please check this linked photo t MSRP: Was: Now: $109.00 Add to Cart
Quick view Astro-Physics Astro-Physics Portable Piers Characteristics of Astro-Physics Piers Unique tension design combines rugged construction with li MSRP: Was: Now: $1,534.00 Options
Quick view Astro-Physics 8" Vixen-Style Dovetail Sliding Bar (SBV08) This Astro-Physics 8” Vixen-style Dovetail Plate was originally designed with the 92 mm Stowaw MSRP: Was: Now: $57.00 Add to Cart
Quick view 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 MSRP: Was: Now: $35.00 Add to Cart
Quick view 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 MSRP: Was: Now: $92.00
Quick view Astro-Physics 1100GTO RA & Dec Auto-Adjust Motor/Gearbox Upgrade (S1100MGW-UP) May 7, 2025. We have a limited number of upgrades available for mounts shipped before January MSRP: Was: Now: $1,975.00
Quick view Astro-Physics 1600GTO RA & Dec Auto-Adjust Motor/Gearbox Upgrade (S1600MGW-UP) May 7, 2025. We have a limited number of upgrades available for mounts shipped before April 20 MSRP: Was: Now: $1,975.00
Quick view 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 MSRP: Was: Now: $395.00 Add to Cart
Quick view 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 MSRP: Was: Now: $295.00 Add to Cart
Quick view 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 MSRP: Was: Now: $230.00 Add to Cart
Quick view 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 MSRP: Was: Now: $185.00 Add to Cart
Quick view 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 MSRP: Was: Now: $165.00 Add to Cart
Quick view 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 MSRP: Was: Now: $460.00 Add to Cart
Quick view Astro-Physics 18 lb. Counterweight for 1.875" Shaft - Mach2, 900, 1100, 1200 & 1600 (also Mach1 using optional shaft) (18SCWT) Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the MSRP: Was: Now: $275.00 Add to Cart
Quick view Astro-Physics 10 lb. Counterweight for 1.875" Shaft - Mach2, 900, 1100, 1200 & 1600 (also Mach1 using optional shaft) (10SCWT) Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the MSRP: Was: Now: $205.00 Add to Cart
Quick view Astro-Physics 5 lb. Counterweight for 1.875" Shaft - Mach2, 900, 1100, 1200 & 1600 (also Mach1 using optional shaft) (5SCWT) Our counterweights are precision machined from 303 stainless steel. The weights slip easily onto the MSRP: Was: Now: $165.00 Add to Cart
Quick view 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 MSRP: Was: Now: $280.00 Add to Cart
Quick view Astro-Physics Flat Surface Adapter with Flat Pier Plate - for 1100 and 900 Mounts to use 10" ATS Piers (119FSA-10ATS), inside surface not anodized Ever find yourself wishing that you had a bigger mount? Short of a magical spell, you can maximize t MSRP: Was: Now: $411.00 Add to Cart
Quick view 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 MSRP: Was: Now: $101.00 Add to Cart
Quick view 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 MSRP: Was: Now: $268.00 Add to Cart
Quick view 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 MSRP: Was: Now: $297.00 Add to Cart
Quick view Astro-Physics Handle with 6.3" Spacing for 1/4-20 Threaded Holes, Ideal for Stowaway or 110/130 Refractor (63HANDLE) Hey! Do you want a hand with that scope? Our CNC machined handle can help you safely tote your Stow MSRP: Was: Now: $75.00 Add to Cart
