Takahashi GT40 Guide Scope
Best precision guide scope for serious astrophotographers seeking reliable tracking.
This compact guide scope simplifies the astrophotography workflow by offering a wide field of view that makes finding guide stars effortless. Its precise, rotating lens cell focus mechanism ensures sharp images, while the versatile mounting options allow for seamless integration with various setups.
$350.00
at
eBay
More GT-40 options
Who it's for
- Astrophotographers demanding pinpoint accuracy for long-exposure imaging
- Serious imagers requiring rock-solid mechanical stability
- Travelers needing a lightweight, balanced telescope setup
Who should skip it
- Budget-conscious hobbyists seeking value-oriented accessories
- Imagers working under heavy light pollution needing larger apertures
- Users preferring universal, non-proprietary mounting systems
Performance breakdown
Optical Clarity
Takahashi glass delivers exceptional contrast and pinpoint star definition.
Build Quality
Precision-machined metal housing ensures long-term durability and structural integrity.
Focusing Precision
Helical focuser provides smooth, micro-adjustments for critical guiding accuracy.
Mounting Versatility
Standardized footprint integrates seamlessly with most existing astrophotography rigs.
Portability
Compact, lightweight design minimizes strain on your primary imaging setup.
Guiding Stability
Rigid construction eliminates flexure, ensuring consistent tracking during long exposures.
Key Specs
Diameter
40 mm
Focal Length
240 mm
Focal Ratio
F/6.0
Metal Back Distance
0 to 21.5 mm
Eyepiece Holder
1.25 inches
Weight
570 g
Length
272 mm
Width
58 mm
Height
64 mm
Mounting
2 x M8 threads, 2 x M5 threads, 1 x 1/4-20 Kodak thread
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