fbpx

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.
Lensrentals lens teardown Canon 600mm

Equipment

Taking Apart the Canon RF 600mm f/11 IS STM

By

Here I sit, the guy who gets poetic writing about tiny resolution differences in high-priced wide-aperture lenses, having just bought this lens. Its aperture is in the diffraction-softening range. The manufacturer’s (pronounced ‘better than reality’) MTF charts aren’t very good. So why did I buy this pig? Because it could fit a need, of course. Despite the religious […]

Equipment

MTF Tests of the Tamron 17-28mm and 28-75mm f/2.8 Di III RXD Lenses

By

Tamron has a nice set of three f/2.8 zooms for Sony E mount cameras. Today I’m putting out MTF results for the 17-28mm f/2.8 Di III RXD and the 28-75mm f/2.8 Di III RXD. They offer a reasonably priced alternative to Sony-branded lenses, and Tamron has been making good products lately. I’ll admit to a […]

Equipment

The Great Flange-to-Sensor Distance Article. Part II: Photo Cameras

By

If you’re a photo shooter, chances are you didn’t read Part I of this series on Cine Cameras. If you’re at all interested in the methodology, you should give it a glance, because I’m not going over that again. Today I’m going to just talk about photo bodies and what we found measuring flange-to-sensor distance.   Well, how did […]

Flange to Sensor for Cine Lenses

Equipment

The Great Flange-to-Sensor Distance Article: Part 1 — Cine Cameras

By

Part 1: EF and FE Mount Cine Cameras Consider, if you will, the fate of Poor Ben. Unbeknownst to Poor Ben, Aaron and I had started experimenting with measuring the flange-to-sensor distance of various video cameras, since we found that it varied more than, well, more than we had thought it should vary. We spent […]

Nikon 120mm-300mm Teardown

New Items

A Peek Inside the AF-S Nikkor 120-300mm f/2.8 FL ED SR VR

By

We’ve wanted to look inside the Nikkor AF-S 120-300mm f/2.8 FL ED SR VR lens. When we took apart a Z lens recently, we found Nikon had moved on from their ‘classic’ internal optomechanical and electrical design for a neat, modern design. We were interested to see if newer F lenses would pick that up, or if they would […]

Follow on Feedly