i already bought my eq5 pro and now i am in need of a scope with a focal length of around 250mm ish. I've been thinking of the Redcat 51, Askar SQA55, and the Svbony sv555. All three of them are petzval design APO but the Svbony sv555 are the cheapest at $560 (no shipping cost) while the SQA55 is at $800 (+$150 ish for import shipping) and the Redcat 51 at $900 (free shipping) which is a big price difference compared to the svbony. Is the svbony sv555 worth it for the lower price or im just better getting the SQA55? Have anybody tried the sv555?
Thanks
Svbony SV555 professional astronomical photography lens is designed for deep-sky photography. Petzval objective lens structure includes a triplet lens and ED offering a clear image without aperture blocking. 44mm full frame has a wide field of view and provides a clearer image. EAF kit and fine adjustment make it convenient to shoot. F22 to F4.5...