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QHYCCD Mini Guide Scope 30mm f/4.3
The QHYCCD Mini Guide Scope combines a 30mm doublet objective and a fast f/4.3 focal ratio in a package weighing just 111g. Its short 130mm focal length provides a wide field of view, which makes it easy to find guide stars. The tube is 31.6mm in diameter, and QHYCCD offers an optional standard finder-scope connector with a tripod screw thread.
A 130mm Focal Length for Wide-Field Guiding
The core of the Mini Guide Scope is its 30mm f/4.3 doublet optical system. The 130mm focal length creates a generous field of view, which dramatically simplifies the process of finding and locking onto a suitable guide star. This is a significant advantage over longer, narrower guide scopes, especially in star-poor regions of the sky.
Ultralight 111g Body with Front-Side Focuser
At only 111g, this guide scope adds negligible weight to your imaging rig, minimizing balance issues and making it an ideal match for lightweight star trackers and portable mounts. Focus is set with the front-side focuser, from infinity down to 1.5m, and a focus lock holds the position during an imaging session.
C/CS Mount for QHY5II & QHY5III Cameras
Engineered for seamless integration with QHYCCD's ecosystem, the Mini Guide Scope features a standard C/CS mount thread. This allows direct, secure attachment of any camera from the QHY5II and QHY5III series. The tube is 31.6mm in diameter, and an optional standard finder-scope connector with a tripod screw thread is available.
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What cameras are compatible with the QHYCCD Mini Guide Scope?
The Mini Guide Scope is specifically designed with a C/CS mount interface for compatibility with the entire QHY5II and QHY5III series of guide and planetary cameras.
How does the 130mm focal length of the QHYCCD Mini Guide Scope affect guiding?
The short 130mm focal length creates a wide field of view. This makes it much easier to find a suitable guide star anywhere in the sky.
Will the 111g weight of the Mini Guide Scope unbalance my portable imaging rig?
No, at just 111g, the Mini Guide Scope is exceptionally lightweight. It is designed specifically to minimize impact on the balance of small equatorial mounts and portable star trackers, preserving tracking accuracy.
How do I attach the QHYCCD Mini Guide Scope to my main telescope?
QHYCCD offers an optional standard finder-scope connector with a tripod screw thread for the 31.6mm tube.
How do I focus the QHYCCD Mini Guide Scope?
Use the front-side focuser until stars are sharp in your guide camera, then engage the focus lock so the position does not change during your imaging session.
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| Aperture |
30mm |
| Focal Length |
130mm |
| Focal Ratio |
f/4.3 |
| Objective Lens |
Doublet |
| Focus System |
Front-side focuser with focus lock |
| Focus Range |
Infinity to 1.5m |
| Camera Interface |
C/CS mount |
| Compatible Cameras |
QHY5II and QHY5III series |
| Internal Finish |
Anti-scatter matte paint |
| Tube Diameter |
31.6mm |
| Telescope Connection |
Optional standard finder scope connector with tripod screw thread |
| Weight (OTA only) |
111g |
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QHYCCD Mini Guide Scope
× 1
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QHYCCD 2-Year Warranty
