Nov 21, 2009 · All and all, ignoring the factory flaws, this is an excellent SLR lens. It works well, takes gorgeous photos, and is surprisingly inexpensive.
It features 100 to 300 mm focal length with the minimum focus of objects at a distance of 1.8 meters. This lens has been designed with a maximum aperture of f/4 ...
50mm SLR Lens Specifications. So I've been taking products shots this past few years and 50mm lens represents the product closes to natural human eyes.