Author » Roger Cicala

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.
Sigma Art Series MTF Tests

Just MTF Charts

Just MTF Charts: Sigma Prime Lenses

By

This is the third post publishing all of our MTF results so that methodology is consistent and they are easy to find. No comparisons, no commentary, just the test results for you to use and abuse as you see fit. We’ll continue today with the Sigma prime lenses. For those who wonder, the results presented are for EF (Canon) mount […]

Zeiss Lens MTF Charts

Just MTF Charts

Just MTF Charts: Zeiss SLR Lenses

By

Please note: The Zeiss Batis and Loxia Lenses will be presented with the Sony FE mount prime lenses.  Over the last 5 or 6 years we’ve run more MTF tests than anyone in the world. We do a lot of stuff with those results, but the one thing that’s pertinent is we publish them on […]

Canon 85mm f/1.4L IS MTF Testing

Geek Articles

Just MTF Charts: Canon Prime Lenses

By

This is the first post of a series of posts publishing all of our MTF results so that methodology is consistent, easy to find, and up-to-date. (For some of the older lenses there are graphs done with older software floating around. For a couple of lenses there are incorrect graphs done before we worked out all of the […]

Sony 135mm MTF Sharpest Lens Ever

Equipment

Sony FE 135mm f1.8 GM Early MTF Results

By

As is sometimes the case, I got access to a couple of pre-release copies of the new Sony FE 135mm f1.8 GM lens. Of course, if I get access, it gets MTF bench tested. I mounted the first one, sipped my coffee and then lost my mind and started shouting various expletives, enough to bring […]

Geek Articles

MTF Results for Recent Sigma Art Lenses

By

And you may find yourself in a shotgun shack. And you may find yourself in another part of the world. And you may find yourself behind the wheel of a large automobile. And you may find yourself in a beautiful house. And you may ask yourself, well, what should I shoot with? A number of people […]

Follow on Feedly