Lensrentals News and Alerts

Introducing LensRentals Keeper

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Saying goodbye can be the hardest part of any rental. With our new Keeper program, you can try it, then buy it! Just rent an eligible item, and then we’ll give you a starting purchase price based on the age of the copy we send you. We’ll even give you a credit for a portion […]

Lenses and Optics

Just the Lenses: Canon and Nikon Mount 85mm f/1.4 (and 1.2) Primes

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We’ll continue our Just the Lenses posts with the 85mm wide-aperture prime lenses. We’ll get through all of the wide aperture primes eventually, for those of you who like this series. If you haven’t read the previous posts, then you might want to go back and skim the introduction of the previous one to see the […]

Lenses and Optics

Field Curvature and Stopping Down

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Ignorance more frequently begets confidence than does knowledge. Charles Darwin What I know that I don’t know doesn’t cause me much trouble. I don’t know the formulas for 7th order optical aberrations for example. I don’t know enough math to calculate those formulas even if I did memorize them. But I’ve got shelves of books […]

Other

The Itsy Bitsy Spider

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We spend a lot of time here at Lensrentals getting dust out of lenses. Dust doesn’t affect an image, except in very rare circumstances, but people want their rental lenses to look nice and clean inside and out, and our inspectors check the inside of every lens with spotlights and send any dusty ones over to the […]

Lenses and Optics

Just the Lenses: Canon and Nikon Mount 35mm f/1.4s

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As I discussed in the last post, it’s impossible to accurately compare lenses from different mounts using any form of computerized target analysis testing (methods like DxO or Imatest). Target analysis tests an entire system (camera and lens). That’s a very practical thing, of course, but it has some limitations. Directly comparing the lenses on […]

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