SV165 30mm F4 Mini Guide Scope

Focus was easy. Decent quality for a guide scope. Light weight. Good price. If this is your first guide scope - you can’t go wrong here.

Bought the 40mm variant. Light weight like a finder. Good clear multi coated objective lens. Lots of focus (length) adjustability. The base fits in a standard Synta finder shoe and has three point adjustment so it can be aligned with the optical axis of the main scope. I use this little guide scope with an astro camera to plate solve to align my mount with the stars in the sky an electronic finder if you will. I like Svbony products. They are affordably priced, good build quality and durable performance. I would recommend.

This is a very good guide scope for the money. It is easy to get focused. I also own the 50mm guide scope made by Svbony and would recommend it to anyone looking for a good quality affordable guide scope.

This guide scope works with my Zwo Asi120 mini camera, small main telescope and Zwo ASIAir. The autoguiding has accuracy between 0.5 to 2 arcseconds. This is mostly good enough for my main scope and camera that cover about 2.5 arcseconds per pixel. The main difficulty with this product is the initial setup of finding infinity focus. It took a very frustratingly long time to figure out how far to insert the camera into the tube, or how much to turn the focusing ring, to get any image. I had to search various websites to find pictures of other users' setups in order to estimate where the focus ring and camera should be. Once I got in range to see an object, it was easy to fine tune the focus for autoguiding.

I have used this as a guiding scope for my telescope for Deep Sky Objects Imaging and it has worked well so far for multiple objects. It is also relatively light and not too hard to install as well. The field of view is great for tracking the mentioned Deep Sky Objects. It also seems well built and I expect it to last for a long time as well.

Works just as well as $200 guide scopes, and for only 50 bucks, it’s definitely worth it. I can get guiding under 1 arc-second. Focusing can be tricky, but once it’s dialed in it performs perfectly. (I did 3-D print a due shield for it but it’s not needed.)

This finder is meant for small telescopes used for astronomy photography. It’s compact enough that you don’t notice the weight, but provides plenty of field of view for find or tracking celestial objects. Can be used visually with an eyepiece or diagonal and eyepiece for viewing objects terrestrial or celestial objects. It is well built and made with quality metal parts that Will not break like plastic ones. It’s also not expensive for the use and build quality given the price. 👏

Works great zwo 150$.