ToupTek 40mm f/5 ED Triplet PAPO Guide Scope with Crayford Focuser

Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
Images and Description Coming Soon...
ToupTek GS Series Guide Scopes: Precision Guiding, Superior Image Quality!
The ToupTek GS Series 200mm f/5 Guide Scope is designed to be more than a traditional guide scope. Featuring a three-element PAPO design with ED glass and an integrated flat-field optical system, these versatile compact scopes deliver pinpoint stars for accurate guiding while also being capable of visual observing and entry-level astrophotography. With an 40mm aperture and 200mm focal length, the GS Series provides bright, sharp performance in a compact and lightweight package ideal for portable imaging setups.
The precision Crayford-style focuser (AC) models provide smooth, reliable focusing performance with easy manual adjustment for guide cameras, planetary cameras, and lightweight imaging accessories. Combined with lightweight CNC-machined aluminum construction, a modular design, and broad accessory compatibility, the GS Series offers a flexible and travel-friendly solution for astrophotographers looking to maximize performance without adding unnecessary weight to their setup.


GS Series Standout Features!
Broad Compatibility


The GS series guide scopes are ready for a wide range of accessories. High-transmission coatings and fully baffled interiors preserve contrast, whether you attach cameras, focusers, or diagonals. Supporting high-quality imaging with a 1-inch and smaller guide or planetary cameras.
Seamless Integration


The Inlcuded dovetail base provides multiple M6 threaded holes plus a 3/8-16 port for quick attachment to tripods or equatorial mounts.
Flexible Configurations


Modular M48 extension tubes let you swap to shorter tubes when pairing with eyepieces or diagonals.
Modular, Expandable Design!






A dedicated matte-black M48 extension tube forms the core of the OTA. Mix and match modules to suit your required back focus—covering visual observing, guiding, and imaging without compromise.


Smooth Crayford-Style Focuser
Rackless focuser (AC version): paired with the FSB-125C rackless focuser. Precision bearing guidance and a classic Crayford mechanism deliver silky-smooth motion with stable collimation—perfect for lightweight manual focusing scenarios.


Astrophotography Ready
Use a third-party bayonet-to-M42 adapter (sold seperately) to attach mirrorless or DSLR cameras. Adjust the extension tubes to match the flange distance—APS-C sensors or smaller are recommended to minimize vignetting.


Camera Sensor Compatibility
Focuser drawtube offers a 1.25-inch inner diameter with an external M42x0.75 thread—connect cooled cameras (optimized for a 1-inch image circle).


Thoughtful Features
The tube rings include multiple M5 threaded holes on the top and sides to mount additional accessories!
Specifications:
- Aperture: 40 mm
- Focal Length: 200 mm
- Focal Ratio: f/5
- Optical design: Triplet APO (w/ ED glass element)
- Focuser Type: 1.25" Rackless focuser
- Material: Aluminum alloy
- Coatings: multi-layer AR
Dimensions


Spot Diagram


Other Information
- Country of Manufacture: China
ToupTek GS Series Guide Scopes: Precision Guiding, Superior Image Quality!
The ToupTek GS Series 200mm f/5 Guide Scope is designed to be more than a traditional guide scope. Featuring a three-element PAPO design with ED glass and an integrated flat-field optical system, these versatile compact scopes deliver pinpoint stars for accurate guiding while also being capable of visual observing and entry-level astrophotography. With an 40mm aperture and 200mm focal length, the GS Series provides bright, sharp performance in a compact and lightweight package ideal for portable imaging setups.
The precision Crayford-style focuser (AC) models provide smooth, reliable focusing performance with easy manual adjustment for guide cameras, planetary cameras, and lightweight imaging accessories. Combined with lightweight CNC-machined aluminum construction, a modular design, and broad accessory compatibility, the GS Series offers a flexible and travel-friendly solution for astrophotographers looking to maximize performance without adding unnecessary weight to their setup.


GS Series Standout Features!
Broad Compatibility


The GS series guide scopes are ready for a wide range of accessories. High-transmission coatings and fully baffled interiors preserve contrast, whether you attach cameras, focusers, or diagonals. Supporting high-quality imaging with a 1-inch and smaller guide or planetary cameras.
Seamless Integration


The Inlcuded dovetail base provides multiple M6 threaded holes plus a 3/8-16 port for quick attachment to tripods or equatorial mounts.
Flexible Configurations


Modular M48 extension tubes let you swap to shorter tubes when pairing with eyepieces or diagonals.
Modular, Expandable Design!






A dedicated matte-black M48 extension tube forms the core of the OTA. Mix and match modules to suit your required back focus—covering visual observing, guiding, and imaging without compromise.


Smooth Crayford-Style Focuser
Rackless focuser (AC version): paired with the FSB-125C rackless focuser. Precision bearing guidance and a classic Crayford mechanism deliver silky-smooth motion with stable collimation—perfect for lightweight manual focusing scenarios.


Astrophotography Ready
Use a third-party bayonet-to-M42 adapter (sold seperately) to attach mirrorless or DSLR cameras. Adjust the extension tubes to match the flange distance—APS-C sensors or smaller are recommended to minimize vignetting.


Camera Sensor Compatibility
Focuser drawtube offers a 1.25-inch inner diameter with an external M42x0.75 thread—connect cooled cameras (optimized for a 1-inch image circle).


Thoughtful Features
The tube rings include multiple M5 threaded holes on the top and sides to mount additional accessories!
Specifications:
- Aperture: 40 mm
- Focal Length: 200 mm
- Focal Ratio: f/5
- Optical design: Triplet APO (w/ ED glass element)
- Focuser Type: 1.25" Rackless focuser
- Material: Aluminum alloy
- Coatings: multi-layer AR
Dimensions


Spot Diagram


| Manufacturer | ToupTek |
|---|---|
| Telescope Focal Length | Up to 300mm |
- 1x GS200AC
- 1x Tube ring and dovetail
- 1x Dust cap
- 1x Packing box
Images and Description Coming Soon...
ToupTek GS Series Guide Scopes: Precision Guiding, Superior Image Quality!
The ToupTek GS Series 200mm f/5 Guide Scope is designed to be more than a traditional guide scope. Featuring a three-element PAPO design with ED glass and an integrated flat-field optical system, these versatile compact scopes deliver pinpoint stars for accurate guiding while also being capable of visual observing and entry-level astrophotography. With an 40mm aperture and 200mm focal length, the GS Series provides bright, sharp performance in a compact and lightweight package ideal for portable imaging setups.
The precision Crayford-style focuser (AC) models provide smooth, reliable focusing performance with easy manual adjustment for guide cameras, planetary cameras, and lightweight imaging accessories. Combined with lightweight CNC-machined aluminum construction, a modular design, and broad accessory compatibility, the GS Series offers a flexible and travel-friendly solution for astrophotographers looking to maximize performance without adding unnecessary weight to their setup.


GS Series Standout Features!
Broad Compatibility


The GS series guide scopes are ready for a wide range of accessories. High-transmission coatings and fully baffled interiors preserve contrast, whether you attach cameras, focusers, or diagonals. Supporting high-quality imaging with a 1-inch and smaller guide or planetary cameras.
Seamless Integration


The Inlcuded dovetail base provides multiple M6 threaded holes plus a 3/8-16 port for quick attachment to tripods or equatorial mounts.
Flexible Configurations


Modular M48 extension tubes let you swap to shorter tubes when pairing with eyepieces or diagonals.
Modular, Expandable Design!






A dedicated matte-black M48 extension tube forms the core of the OTA. Mix and match modules to suit your required back focus—covering visual observing, guiding, and imaging without compromise.


Smooth Crayford-Style Focuser
Rackless focuser (AC version): paired with the FSB-125C rackless focuser. Precision bearing guidance and a classic Crayford mechanism deliver silky-smooth motion with stable collimation—perfect for lightweight manual focusing scenarios.


Astrophotography Ready
Use a third-party bayonet-to-M42 adapter (sold seperately) to attach mirrorless or DSLR cameras. Adjust the extension tubes to match the flange distance—APS-C sensors or smaller are recommended to minimize vignetting.


Camera Sensor Compatibility
Focuser drawtube offers a 1.25-inch inner diameter with an external M42x0.75 thread—connect cooled cameras (optimized for a 1-inch image circle).


Thoughtful Features
The tube rings include multiple M5 threaded holes on the top and sides to mount additional accessories!
Specifications:
- Aperture: 40 mm
- Focal Length: 200 mm
- Focal Ratio: f/5
- Optical design: Triplet APO (w/ ED glass element)
- Focuser Type: 1.25" Rackless focuser
- Material: Aluminum alloy
- Coatings: multi-layer AR
Dimensions


Spot Diagram


Other Information
- Country of Manufacture: China
| Manufacturer | ToupTek |
|---|---|
| Telescope Focal Length | Up to 300mm |
- 1x GS200AC
- 1x Tube ring and dovetail
- 1x Dust cap
- 1x Packing box

ToupTek 40mm f/5 ED Triplet PAPO Guide Scope with Crayford Focuser
