SV503 ED 70mm F6 Doublet Refractor with Focal Reducer

⦿ The appearance of the telescope is baked with high-end fine-grained paint, with exquisite appearance and delicate feel
⦿ The objective lens features an S-FPL51 extra-low dispersion glass ED element, which eliminates chromatic aberration. This results in the best color correction for an ED doublet lens
⦿ The lens adopts optical processing and low polishing technology, which is carefully carved
⦿ The deceleration ratio of the two-speed 2'' toothed focusing seat is 1:10, which makes it easy to achieve accurate focus
⦿ If the 70ED is matched with a large chip, A possible way is to: The SV193 increases the field of view of the shot, which is sufficient for most DSOs. The stacked image edges may need to be cropped in the post-process to improve image quality.