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Top 5 Positive Customer Reviews for srate البصريات
They arrive in perfect condition and in very good quality for a very good price. Fast shipment and really very savely packed! We will buy again! Thank you very much! Very recommandable!
Purchased this lens to serve as the objective of a fast telescope (meaning, in this case, a high focal ratio). The precise focal point is difficult to determine with my current set-up, but it appears to be true to the advertised range of ~f/20.9. Hefty borosilicate glass, quite thick, very clear, colorless when viewed on-edge. Packaging was a bit confusing - had F:1016 and F:1289 written on it, hopefully it's at least the latter.
Thank you Lily for this super-fast delivery, and good communication. Well protected packaging. High quality glass lens just as described. Focal length may be more than 320mm, probably about 400mm, but it is just right for my project on sun-light focusing. Great seller A+++++
Very satisfied, excellent seller and great lens for my use. It could be that the fire is 40 cm (I'm not sure) but for what I have to do it is fine. Excellent material, made of glass. thanks to the seller and in the future I hope to buy on your store. Super fast shipping.
Superquick delivery in 13 days to NL. The cubes are almost mint, only minimal defects detectable when inspecting. Nice to make decoration which does magic to white/ sun light... Recommanding product and reseller