Author Everything but the Sharpness | Lensrentals Blog

I'm Roger and I am the founder of Lensrentals.com. Hailed as one of the optic nerds here, I enjoy shooting collimated light through 30X microscope objectives in my spare time. When I do take real pictures I like using something different: a Medium format, or Pentax K1, or a Sony RX1R.
Lenses and Optics
By Roger Cicala
About 614 times a day I take a phone call or answer an email that is essentially the same question: “How sharp is this lens?” It’s no different in online forums (ok, actually forums are a lot worse) where pages of arguments drone on comparing the results of this bench-test lab review, these MTF charts, […]
Equipment
By Roger Cicala
First, things first: this is simply an editorial. So there’s no worthwhile knowledge in this article, just my opinions. A few years ago, when a new version of anything came out, here was the Lensrentals drill: Buy the new version, anywhere at any price because we couldn’t possibly get enough. Everyone would want one. Sell […]
How To's
By Roger Cicala
We have a new YouTube video up, showing how Scott does a thorough sensor cleaning:
Lenses and Optics
By Roger Cicala
In 2008, I wrote an article This Lens is Soft, and Other Myths that pointed out that lenses and cameras all have tolerance ranges and sometimes a given lens can be sharp on one camera body, and soft on another. At the time, autofocus micro-adjustment was a fairly new feature on camera bodies and my […]
Photographic Techniques
By Roger Cicala
A while back I wrote a blog on Getting Sharp Telephoto Images when I realized a lot of our renters were using big telephoto lenses for the first time and didn’t know the tricks it took to get good telephoto images. We also see people struggle at the opposite end of the focal length range: […]