Such a lens is not available in amazon or flipkart. Please help me as it would help me as I’m in a great need for it. The lens diameter may be a 10cm or a little more. Thank you!
✅ Answers
Answerer 1
Focal length doesn’t have anything to do with the diameter of the primary. Focal length is the distance light travels from the primary to the eyepiece. It’s determined by the length of the tube, positioning of secondary mirror, etc..
Answerer 2
See the link below:
http://www.edmundoptics.com/products/web…
Answerer 3
If U are in India try www.tejraj.com
Answerer 4
Try these guys http://www.edmundoptics.com/optics/optic… I found 20 cm x 800 mm just by glancing through so your should be able to get closer to your needs