What do lens calibration and backup have to do with each other? Generally nothing, but the two topics tragically combined for pro photographer David Liang recently. Earlier this week, we linked to ...

Imaging Resource is reader-supported. When you buy through links on our site, we may earn an affiliate commission. How this works. DIY Photography has shared a pair of excellent videos. The first is ...

Usually, making microadjustments to a lens is a slow and exacting process. It involves taking a photos, making a tweak, and repeating ad infinitum until you have it looking as good as you can. But the ...

It’s fairly well known that not all lenses are created equal. Put that in combination with manufacturing variables and lenses don’t always perfectly align with the camera mount. Generally the ...

A few years ago I was accused of being a Sigma hater. (For the record, I did hate their quality control and so-called repair service at that time, and I didn’t hesitate to say so.) For the third or ...