Category » Geek Articles

Geek Articles

Fun with Field of Focus Part 1

By

I’ve mentioned in some other posts that our optical tools can do a lot more than just test a lens’ MTF. For most of the last two years, though, testing MTF is what we’ve been doing. We may not seem all that busy, but we’ve assembled what is probably the world’s largest database of current camera lenses; […]

Equipment

This is Your (Well Our) Camera at Burning Man

By

In the repair department, there are things we hate. Salt water for cameras and lenses, salt water and sand for tripods and lenses. Sand in legs of the zoom mechanism of lenses ruins threads, they’ll never be smooth again. Right behind those two is dust. Dust doesn’t always destroy equipment, but dust in equipment ruins pictures […]

Geek Articles

Is Your Camera Really The Best Optical Test?

By

“But you must not eat from the tree of the knowledge of good and evil, for when you eat from it you will certainly die.” Genesis 2:17. I have enjoyed, for some years now, the process of learning about lenses and optics. This blog shares a lot of what I’m in the process of learning. A lot […]

Equipment

Lensrentals’ Canon 5D Mk IV Teardown

By

    Today the Canon 5D Mk IV cameras are out and I’m sure by this afternoon there will be unboxing videos all over YouTube. Aaron and I decided to do an unboxing post, too. By unboxing, of course, we mean taking it apart. If you want to make comparisons, you can look at our old (2012) […]

Equipment

Sony FE 16-35 f/4 & Sony FE 24-70mm f/4 Zoom MTF and Variance

By

Many of you who have followed along as we beta-test our Sony FE lens testing have been asking where the FE 16-35mm f/4 ZA OSS and the FE 24-70mm f/4  ZA OSS test results are. Well, the answer is they are here. But your other question, why has it taken so long, has a more complex answer. Testing […]

Follow on Feedly