Black and White of lenses


we are often fascinated by the long white (actually a light grey or beige) lenses from Canon. These white lenses are all large super-telephoto lenses from Canon. There is a good reason behind this and not just cosmetics.

Various glass elements are included inside the lens barrel. These expand with heat. This is not usually a problem with compact lenses as the amount of expansion is quite small. in compact lenses. As large lenses contain large elements the expansion in these can bring a lens close to the limits of its design tolerances. A white surface reflects sunlight, helping to keep the lens cooler.

Also, you will notice that the manual focusing action of some black lenses allows focusing past its infinity setting (also known as over-focusing). This is mainly to allow for expansion. If the lens is used in hot conditions, infinity focusing will be closer to the end of the travel.

Featured Posts
Recent Posts
Archive
Search By Tags
Follow Us
  • Facebook Basic Square
  • Twitter Basic Square
  • Google+ Basic Square
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • best wedding photographers in Delhi
  • Facebook Social Icon
  • Twitter Social Icon
  • YouTube Social  Icon
  • Pinterest Social Icon
  • Instagram Social Icon
  • Munish on LinkedIn

55, Uday Park, opp Ansal Plaza,

August Kranti Road,

New Delhi 110049

Call # 01146039255  

call+ whats app 9871020341 | 9811195357

Email

© munish khanna

# 1 Wedding Photographer in Delhi, India

Known as the Best Wedding Photographers in Delhi, India, we offer creative Candid Photography, Cinematic videos, Teasers, Highlights along with Canvera wedding albums. Check out our various Wedding Photography packages, there is one for every Budget.