Then there's the 18-35mm F1.8 - the fastest SLR zoom on the planet, and surely the most interesting lens of the year so far.Īs for lens mounts, the dock is already available in Canon EF and Sigma SA mount, with the Nikon F mount version due to start shipping towards the end of August 2013. For use with SIGMA Global Vision lenses UD-01 for DSLR lenses UD-11 for mirrorless (DN) lenses Update lens firmware on all compatible lenses Adjust focus position, AF parameters, OS settings, etc. This list isn't especially long, but it's certainly distinguished - it includes the Gold Award-winning 35mm F1.4, and the 17-70mm F2.8-4 which we gave a Silver Award. If I shoot at any distance until 0.7, my pictures are focused. To calibrate infinity I chose 2 meters (because that is my preferred distance to shoot) and everything I shoot at 2 meters comes out in focus. I have managed to calibrate the short distances (0.28, 0.35,0.6). Sigma 17-70mm F2.8-4 DC Macro OS HSM | C I am trying to calibrate my Sigma 18-35 with a USB Dock.At the time of writing, the compatible lenses are: those announced either at the same time as the dock or later it's not compatible with older models or 'DN' lenses for mirrorless cameras. The USB dock only works with Sigma's most recent 'Global Vision' SLR lenses, i.e. It's clearly designed to be used this way up, especially with the huge 120-300mm lens.
Simply place the dock on the lens, and plug in. The dock connects to a computer via this Micro USB port, using the supplied cable This is the other side of the dock. The central LED indicator lights up green when the lens is plugged in and connected to Optimization Pro. I will be using it to update and fine tune my Sigma 17-70mm f/2.8-4 DC OS Macro HSM Contemporary, Sigma 24-105mm f/4.0 DG OS HSM Art and Sigma 150-600mm f5.0-6.3 DG Contemporary lenses. Our review sample was for Canon-fit lenses Nikon F and Sigma SA versions are also available. On one side of the dock is a mount for the lens. It has a mount for the lens on one side, an LED status indicator on the other, and a USB port for connection to a computer. The USB dock is inherently a very simple device. In this review we'll look into how it works, and what it can do.
But look a little closer and it's actually an interesting piece of kit. If you own a SIGMA Global Vision lens (Art, Sports or Contemporary) for digital SLR cameras and you want to update your firmware, customize settings or calib. It would be easy to think that because nobody else offers such a thing, it must be superfluous. Disconnect the lens from your camera body and connect it to the dock, making sure that the dock is properly secured to the lens.
It's a pretty simple concept - it allows you to plug a lens into a computer and update its firmware or tweak its operational settings using Sigma's 'Optimization Pro' software. Now take your test photos! You will take one at 1 ft away, the next one at 2 ft, then around 6 ft and then beyond 6 ft.Sigma's USB dock is a unique accessory, that was announced as part of Sigma's 'Global Vision' strategy at Photokina 2012. This will help you determine where the focus is falling. 2.) Now you are ready to take your test photos. Make sure it is stretched out behind and in front of your focusing object. Place the lens focusing card or object on a flat and level surface. Patience! Steps: 1.) Now you are ready to set up your test scene.
#Calibrate sigma lens without dock how to#
How to calibrate a Sigma 85/1.4 Art with Sigma dock, different corrections depending on f. Get answers to your questions in our photography forums. If you don’t use one you will need an object that is high contrast you can focus on that will help you see where your focus is falling.Ī Tape Measure (optional if you have a lens focus card). Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. They are inexpensive and, in my opinion, worth it. (about $60)Ī Lens Focus Calibration Tool Card is helpful but not necessary. Reproduction in whole or part in any form or medium without specific written permission is prohibited. Calibrate the lens carefully on one of your bodies using the Sigma dock, which switching off or setting to zero that bodys AFFT value. When you start to notice it missing focus then you need to either send it off to be calibrated or you can do it yourself! These are the items you will need to do it yourself: With Sigma and Tamron USB dock you calibrate lens, and not camera body. The USB dock allows you to calibrate the lens for different distances and focal lengths, which gives you way more accuracy than the single-point AF fine-tuning your body supports. The Sigma lens USB dock allows photographers to mount Sigma global vision lenses (Canon mount, except DN lenses) to a computer to update firmware, calibrate. They are fast and sharp, but every now and then they have to be calibrated.
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