Recent content by escuta

Perhaps a bit short, but thanks I'll search more on this site.

Thanks pixel. So using your second equation, a 3X magnification lens (if that what 3X stands for) would have a focal length of 12.5cm? That's too short for my purposes. Unfortunately, with the exception of the numbers, all the text on the site I'm looking at is in Chinese which i don't read. I'm...

Dear forum, I'm currently trying to buy some simple glass double-convex lenses with no optical coatings from China with the help of a colleague over there. I'm trying to match a lens that I already have but which is no longer readily available to me here in Brazil. The lens I have is...