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.
Zeiss Cine MTF Tests

Just MTF Charts

Just the Cinema MTF Charts: Zeiss Cine Lenses

By

Zeiss makes a lot of cinema lenses, there are a lot of graphs in this post. Please remember for some, like the Supreme Primes and some of the CP.3 lenses we didn’t get much access to, the MTF graph is the average of just a few copies (the number of copies is identified on the […]

Canon Cine Lenses MTF Charts

Just MTF Charts

Just the Cinema Lens MTF Charts: Canon and Sigma

By

We’re going to┬ácontinue the Cinema prime MTFs with the Canon and Sigma lenses. Again, we’re not going in any particular order, other than what we have handy and what fits reasonably into a single post. Since these are among our most popular cinema lenses, we do generally have at least a 10-copy set for each. […]

Xeen MTF Tests

Just MTF Charts

Just the Cinema Lens MTF Charts: Xeen and Schneider

By

We’ve completed the MTF postings for all of the photo prime lenses. Now we’re going to start with the Cinema primes. For a lot of those that also have a photo version, the optics should be identical. That’s not always the case, however. Plus, the people interested in Cinema lenses aren’t usually the ones interested […]

History of Photography

How Potatoes and Gelatin Created Color Photography

By

Long ago, I wrote articles about the glory days of photography. The days when any photographer worth a damn dabbled in chemical explosives or Bitumen of Judea and spun off side gigs like Lionel toy trains or fashion clothing. Back then your competition didn’t dabble in stealing your photographs, they stole your patents and drank your milkshake. One of […]

Just MTF Charts

Just the MTF Charts: Micro 4/3 Lenses

By

Not a lot to say specifically about the m4/3 lenses except please don’t ask why your favorite isn’t on here; this is all I’ve got. Some of the newer m4/3 have linear electronic focusing which can’t be tested on the bench without a specialized, expensive mount and we don’t have one. Even for the ones […]

Follow on Feedly