Sigma USB Dock Canon

First day using it I immediately attached the dock to my Sigma 150-600 as I've been a little skeptical about the focus speed and accuracy. I say accuracy, but it depends on the situation and a lot of camera settings can have affect on the final image. So as soon as I attached the dock and loaded up the software it said there was new firmware for the lens, brilliant, exactly why I purchased the dock, bearing in mind I only purchased the lens July 2018. I also set up my C1 and C2 settings. C1 - Priority AF focus for quick wildlife shooting (which is really quick now!) and Moderate view mode for Smooth Optical stabilizer. Then C2 I have set up for filming so, slower auto focus and moderate view again for OS if filming hand held. I haven't used the full focus adjustments yet, but will leave the Easy to use as 4 star as I have heard trying to get the correct focus settings if it's front/back focusing too much can be very tedious as you have to set up a tripod and fine tune each focal length. But for now I do not have Micro AF adjustments in camera so if it takes few hours and it works, then money well spent.

Useful if you own any of the new SIGMA ART (A), SPORT (S), or CONTEMPORARY (C) Lenses. I only own a couple of Prime Art lenses but anticipate buying more from the three ranges as they are so good. The dock allows micro adjustments to be made to focussing as well as firmware upgrades (i.e. as and when new cameras and systems are released from the likes of Canon and Nikon). Not much more to say. When connected to a lens the green light comes on but this is in the base and if you have it on a desk or table you cannot see it unless you pick the whole thing up. You do not need to have one of these but for the tekkie enthusiasts it is probably a must have.

Using this on a Sigma 150-600 sport. No software provided - has to be downloaded from Sigma's site (best way in my opinion for any new piece of software or drivers), but easy to download & install. Software for this is basic but usable (automatically checks for firmware updates for both dock & attached lens when lens connected) - hopefully new features will be added over time, software also provides information not provided on lens box or lens (needed the serial number for this lens for my camera insurance - nothing on box or lens, but showed up on the home page of the software). Device itself has a plastic (yet robust) feel to it, provided cable is reasonable length (have been able to use this on my desk without the need for an extension cable or replacing the cable with a longer 1 (unlike some other peripherals I have) and has a solid feel when connecting the lens. Overall a good addition if you have a compatible lens.

Sigma have upped their game in recent years, their lenses are on a par - if not surpassing - some original manufacturer's offerings. This USB dock is really easy to use and enables the user, through the Sigma app, to update firmware or change settings of their lenses to suit their needs, such as focus distance limiting or focus micro adjusting. For some lenses it's possible to change the focus speed/priority if required also. The app can be downloaded free from Sigma's website and, once the dock is attached to the lens mount and plugged into a usb socket, it will read the lens and enable adjustments to be made. Certainly worth having if you own a number of sigma lenses.

OK, so you will probably only use this a couple of times and then it will sit in a cupboard somewhere plus calibrating your lens is really tedious... but I've spent an hour and a half calibrating my 150-600 Contemporary and it's gone from a pretty good lens for the money to a real amazing lens for the money! If you are planning on buying a Sigma lens, especially a super telephoto where the Depth of Field is so shallow that focusing is absolutely critical, I would say you should definitely budget for the cost of the USB dock as well. Don't forget that you will also need a Lens Focus Calibration Tool - I bought the Maxsimafoto one as I couldn't see the point paying more than the price of the dock for the DataSpyder - it did the job. You also need two tripods (one for the camera and one for the calibration tool). There are lots of YouTube videos on how to do this but all you really need to know, and which doesn't seem very well documented, is that, for a given focal length at a given distance, if the lens is focusing behind where it should, you give it a negative number and if it is focusing in front of where it should, you give it a positive number. 4 focal lengths, 4 distances so 16 test shots. Adjust and repeat until you get it spot on - took me about 4 repetitions until it was right. My one tip is to do the calibration on a cloudy day (assuming you are doing it outside) as glare makes it harder to read the calibration scale in your shots and under-expose by a stop because that scale is very bright. Buy one (or borrow one).

Used it twice already, firmware update made a difference (better) to focusing on my old sigma 150-600, would recommend.

Funkar som förväntat 📷

購入した超望遠ズームレンズの設定変更のために購入しました。 アプリをインストールして接続すれば即認識し、オートフォーカスの設定や手ぶれ補正の設定を変更することが簡単にできました。 航空機撮影などの設定の最適化に重宝すると思います。

I was disappointed that more of my Sigma lenses were not compatible with the dock - especially my 105mm 2.8 macro (the newer one). I thought it would be.

Win XPはサポート終了間近と言っても、まだ使用している人も多い。 私もWin 8 に切り替えるまでおあずけ。 また、現在販売中のレンズにも対応でいるようなサポートも欲しかった。

Werkt zoals het moet met de sigma lens.