What are Optical lens?

Answer Most pocket digital cameras (non-SLR type) have two different types of zoom capabilities: Optical & Digital. Optical zoom uses the lens elements to make objects appear closer by using the zoom feat... Read More »

Top Q&A For: What are Optical lens

Can I use camera filter lens behind an optical lens?

You cannot use a filter lens behind an optical lens. Filter lenses must be positioned in front of the camera's lens. Filter lenses can either be screwed directly into the camera or mounted in a fra... Read More »

What is the difference between a optical lens and a digital lens?

Optical vs Digital lens-very basic In the shortest answer...An optical lens shows you the ACTUAL image using glass and mirrors...NO electronics necessary. A digital lens uses glass to project the i... Read More »

What Is the Correlation Between Distance& the Optical Lens of Binoculars?

A pair of binoculars has two optical lenses: an ocular lens and an objective lens. The ocular (or eyepiece) lens determines the magnification of a subject at a given distance. On most pairs of bino... Read More »

Which lens to use for dslr nikon d5100 to get atleast 20x optical zoom?

According to the Nikon India site, a D5100 retails for 34,450 INR (body only) and the 18-300mm lens retails for 72,950 INR. So, total, you'll be looking at 107,400 INR. With this lens you won't hav... Read More »