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.
Cine Lens Comparison

Lenses and Optics

Cine Lens Comparison: 35mm Full-Frame Primes

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Good day! And welcome to our first Cine lens MTF comparison. If you aren’t familiar with what we do here, I suggest you take a glance at our previous post on why we’ve started testing Cine lenses. For those of you who haven’t been here before, let’s be clear about what this is not. It […]

Equipment

Sony FE 16-35mm f/2.8 GM Sharpness Tests

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Well, I’ll say to start with I’ve probably had more requests for the Sony FE 16-35mm f/2.8 GM MTF tests than any lens in recent memory. People are excited about it. About half the requests have been very reasonable “I’m hoping to see MTF results before I decide between this lens and that.” And, as has […]

Equipment

Taking Apart the Zeiss 85mm T2.1 CP.3 Cinema Lens

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Long ago, in an office far, far away we did a teardown of the Zeiss 85mm CP.2 lens. Since we’ve already seen the earlier model, we thought it would be interesting to take a peek inside the new Zeiss 85mm CP.3 lens as well. We’re going to have to work on them eventually, and it’s always […]

Cine Lens MTF Testing

Equipment

Why We’re Going to Start Testing Cinema Lenses. And Why We Haven’t Before.

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  Here we go again. This isn’t my first time pissing off the status quo; I’ve been doing it for years. We spent the last few years developing better metrology (lens testing) for photography lenses. The reason was relatively simple; photography cameras with higher resolutions began to see flaws that the photography company’s (and our existing) metrology […]

Sigma 24-70mm Art Series Review

Lenses and Optics

Sigma 24-70mm f/2.8 DG OS HSM Art Sharpness Tests

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Sigma has been on an incredible run these last 5 years, releasing one amazingly sharp lens after another. They’ve made lenses no one has ever tried before and not only succeeded, they made them amazingly good on the first try. Their quality control has become as good as anyone’s, better than most. And their repair […]

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