We first heard about Sigma’s innovative USB Dock last year at Photokina, and we’ve been curious about how the accessory will work ever since. This $60 gadget lets you connect your lens to your ...

Software : Focus Adjustment If you've got a focus issue with your lens and body combination you can adjust the lens to correct it. Some higher-end bodies support in-camera focus adjustments, but they ...

So I purchased one of the new Sigma 18-300mm F3.5-6.3 DC MACRO OS HSM Contemporary lenses for my Canon T1i and the USB dock to make adjustments/updates. There is some definite back focusing at middle ...

The Sigma USB Dock ($59 direct)($42.00 at Amazon) is an inexpensive accessory that allows you to take full control over the performance of your Sigma lenses. It's compatible with recent glass that's ...

The Sigma USB Dock ($59 direct) is an inexpensive accessory that allows you to take full control over the performance of your Sigma lenses. It's compatible with recent glass that's part of the company ...