Sigma USB Dock lets you Microadjust Lenses

This here is super cool. A Sigma USB Dock that lets you microadjust your lenses. You just hooked it up to your computer, install the Sigma Optimization Pro software and you are up and running.

I first heard about Sigma’s innovative USB Dock last year at Photokina, and I’ve been dying to know how this amazing accessory works. Well now I have and let me tell you, it’s fantastic. This $60 gadget lets you connect your lens to your computer via USB, and then easily install new firmware and make autofocus microadjustments to tweak lens performance.

The idea of plugging a lens into a computer using a USB port might sound a little strange, at least it did to me. But Sigma’s new Optimization Pro software is very easy to work with and gives you access to parts of your lens that you didn’t have before. Once your lens is plugged into the computer, you can give it the latest firmware, but more importantly, you can also tweak the focus parameters of the lens itself. Pretty cool extension of the micro-adjustment feature offered on some DSLRs.

Sigma also released this video demonstrating how you use the USB Dock software to update and control your lens.

Usually the process of updating your lens firmware is an overly complex one. You have to download the firmware to your computer, install it on an SD card, and then run the card from inside the camera. This new dock and software provide a far more streamlined and easier approach.

The lens autofocus microadjustments also seem to be a major improvement. An untouched territory that will undoubtedly make many photographers lives easier. Not every DSLRs offer in-camera AF microadjustments although many do, and even those that do have confusing interfaces. Moving the process to your computer is a step that should have been taken a long time ago, it makes fixing minor focusing irregularities much much easier — though you’ll still need a focus calibration tool like SpyderLensCal if you want to do it properly.

The Sigma USB dock is also available for Canon lenses which is a super bonus, altough that version is a little bit more expensive. You can check it out here.

Focus Settings:
4 Categories of customization for fixed focal length.
16 Categories of customization for zoom lenses (4 options for focal length) x (4 options for shooting distance).

Sports Line:
AF Speed: 3 adjustment modes.
Focus Limiter: Customize auto focus range.
OS: 3 adjustment modes.

The Sigma USB dock is compatible with the following lenses:

  • 35mm F1.4 DG HSM | Art
  • 30mm F1.4 DC HSM | Art
  • 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary
  • 17-70mm F2.8-4 DC MARO HSM | Contemporary
  • 120-300mm F2.8 DG OS HSM | Sports


Here is more information from Wikipedia on Sigma

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About Adam Scott

I was born in San Jose California in 1978. My mom is a housewife and my dad is an engineer. I've always looked up to him because I love technology and always been very enthusiastic about it. The things I buy have to be good quality and they have to be able to do the job I require of them. I don't buy junk, and I don't recommend it either. My goal with this website is to share my enthusiasm (mainly so my friends and relatives don't have to call me all the time for advice), but also so you, my dear reader, can benefit from what I discover when testing all these gadgets.

User Reviews and Comments

  1. Hans M. Øvre says

    Hello! I got my USB dock a week ago, to fix a slightly front focus of my New Sigma C 17-70/2.8-4.0. It was a great and easy tool to use, and I wonder why on earth havent anyone thought of this before? After Three older AF-lenses from Sigma with huge frontfocusing problems and a lot of frustration, i was giving up buying Sigma lenses. But now I can reccomend both the lenses and the USB dock. Together their dynamite! Have a nice photo summer With lot of fun!

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