Sigma statement, as supplied by Sigma UK at 9.00am on 16 June 2010: Auto focusing issue affects limited number of Sigma telezoom lenses. Any one got any suggestions? Attn: Service Department 15 Fleetwood Court Ronkonkoma, NY 11779. Filed Under: DIY Tagged With: focus, focus calibration, focusing, Lens Calibration, prime lens, sigma usb dock. Sigma has pledged to rectify the fault, free of charge. the popular Canon EF 100-400 f/4.5-5.6L, or any f/4 lens on a TC stronger than 1.4×. The safest way would be to send it to Canon Service Centre or a repair shop and ask for a quote on the repairs. Its like its in manual miode which is not good. After that the basic procedure is just to take test photos and adjust the focus as required. Chuck it in the bin if not covered by Sigma (UK) warranty. Now, if you’re a landscape photographer who photographs everything at f/16, you’re probably not going to notice it your lens’ focus is slightly off. Re-attach the lens to the camera, insert back the SD and take a second shot. John Aldred is based in Scotland and photographs people in the wild and animals in the studio. I purchased it along with a 5D. It looks complicated but actually it is a pretty straight forward process. 01959 541444 If under warranty, Sigma (UK) will repair it. My 35mm f2 canon lens's autofocus has stopped working. Sigma has pledged to rectify the fault, free of charge. Step 2: calibrate your lenses – for sigma ART lenses. In today’s article, you’ll learn how to determine which lens has this issue and how to fix autofocus issues. Results are astonishing. This implies that some lenses will not auto-focus on a teleconverter, e.g. Joined: Oct 17, 2010 Messages: 708 Likes Received: 76 Can others edit my Photos: Photos OK to edit. www.kelsey.co.uk, TILT Digital Agency WordPress Designers and Developers in Kent, Photographers and terrorism tackled in documentaries, Photographer Terry O’Neill launches 2010 shootout, WordPress Designers and Developers in Kent. Did quite a lot of shooting but 3 days in my Sigma 50-500mm quit on me, the autofocus just stopped. Photographer Martin Melchior recently did this with his Sigma 70-210 f/2.8 APO lens, ... Nikon Z6 II vs Canon R5 vs Sony a7 III Autofocus Comparison. Every other lens has been reasonably calibrated. Re-attach the lens to the camera, insert back the SD and take a second shot. Focus, Take a shot setting the camera as described at point 1. Open the SIGMA software and add a + 1 or a +2. We deeply apologise if any inconvenience has been caused to our customers. I sent my Sigma lens to CRJ - Camera Repair Japan (authorized Sigma repair facility) and they repaired the autofocus motor, adjusted focus and aperture flex and cleaned the lens for $192. Discussion in 'Beyond the Basics' started by Tomasko, Oct 1, 2017. Open the SIGMA software and add a + 1 or a +2. First of all, a little background. I have two new lenses now! I would like to know if updating my lens firmware via the usb dock is going to fix this. In manual focus mode the focus wheel is locked, and in autofocus mode the focus wheel spins freely but does not change the focus at all. Try holding your AF button on and at the same time, man-handle the lens a little. Cleaned contacts, tried it on 3 different bodies and nothing. Maybe you will see autofocus kick in while you do that, proving a connection problem. But the issue does not seem to get better. His videos have over a hundred million views, have been extensively published by news outlets, and has even received recognition from a few film festivals, such as International Ocean Festival, Tom Saimon is a fashion and editorial photographer based in Haifa, Israel. Sigma 50-500mm OS Autofocus problems. So does this mean its an issue with the Camera Body.? It’s worth pointing out now that this process is really to calibrate the autofocus on your camera to the desired lens and will not fix ‘soft’ focus lenses in any way. Oct 1, 2017 #1. That way if you experience problems, Sigma will repair or replace it. Sigma has pledged to rectify the fault, free of charge. I decided to compare the Sigma at 300mm vs. my Canon 70-100mm 4.6L, and these are the results: Canon 70-300L @ 300mm over a distance of 10m (F8 1/250, tripod) Sigma 100-600 C @ 300mm over a distance of 10m (F8 1/250, tripod) As you can see, the Sigma is blurry throughout the image, whereas the Canon is pretty sharp. However, if for example you are a portrait photographer who has invested in a set of prime lenses and you almost always photograph your subjects between f/1.4 and f/2.8 – you definitely want to make sure that your lens’ focus is bang on – because at f/1.4 the difference between your subject’s eye being in focus versus their eyelashes is a big problem. JP Danko is a commercial photographer based in Toronto, Canada. Having said that, the only lens I have ever owned that has had a major focus calibration issue was a Nikon 50mm f/1.4. So, not long ago I bought my first Sigma lens: Sigma 50mm f/1.4 ART. Autofocus systems also struggle in dim lighting, although that difficulty is often offset on the Nikon D3100, D5100, or D7000 by the AF-assist lamp, which shoots out a beam of light […] The affected serial numbers are listed in the firm’s statement below. ‘This is a limited problem that will not occur in any lenses other than those specifically listed…,’ says Sigma. Check that both the lens and the camera switches are both pointing towards Autofocus. JP I acquired a free Sigma 24-70 f/2.8 lens that had a few issues–namely, autofocus was broken and the zoom was incredibly hard to turn. It's especially bad if it's a high-end lens. Remember, though, if you have multiple cameras, you are making the adjustment in the camera, not the lens, so you need to calibrate each lens on each camera. On the camera it must be set on AF, not M, and on the lens put it to M/A (A stands for Autofocus and M for Manual, M/A allows you to use both). I first did a quick disassembly of the mount, exposing the autofocus motor and the top of the lens components. Kent ME18 6AL Tel: 631 227-2036 Toll Free: 800 896-6858 Fax: 631 585-1895 E-mail: info@sigmaphoto.com. (David also wrote a more detailed explanation on how to assemble the target here.). can change a lens mid-rappel, swap a memory card while treading water, or use a camel as a light stand. In the unlikely event that the inspection uncovers a potential problem, your lens will be modified and returned to you absolutely free of charge with the minimum of delay. If zero on the ruler and the target focus plane do not exactly line up, simply use the line on the ruler that does exactly line up – or make a new mark on the ruler with a fine pen. But as I am now using a set of Sigma ART lenses for the majority of my work, and especially with the new Sigma ART 85mm, I am using f/1.4 more than ever before and with that narrow of a depth of field, I am noticing subtle focus errors more and more often. By: Mike Flacy. I made sure it was correctly attached to the body and that the focusing switch was set to auto. For Canon cameras, it’s very similar. I checked with multiple values. To overcome this issue, we will be offering our customers an inspection and where applicable, a modification service, free of charge. In autofocus mode my camera recognizes when an object is out of focus and makes a single click noise, but the focus does not change. Since the day one I have been facing bad focusing issues. The Sigma USB dock is another world because the lens performs totally different as the distance with the subject change. My other lenses work fine on the D2300. I tried to Calibarate the Camera using AF Fine Tune but it does not do any Calibaration. Check the image at 200% to see if the focus on the ruler of the focus target is on the 0. Photographers have been warned of a potential ‘autofocus defect’ affecting some Sigma telezoom lenses. If you do, post some pictures :) Sigma Corporation of America. Here’s a (semi) fun way to start the year off right – it’s time to calibrate the focus of your lenses! There's little worse than getting a new piece of gear and having it fail on you. It it worth the effort? That happens because metal gear moves planstic focus ring inside the lens and the focus infinity position is being detected when the camera can't move the ring any further. If you are the owner of one of the above three focal lengths but your serial number is different to those specified above, then you need take no further action. Have you calibrated the focus of your lenses? The problem affects some APO 50-500mm f/4.5-6.3 DG OS HSM, APO 120-400mm f/4.5-5.6 DG OS HSM and APO 150-500mm f/5-6.3 DG OS HSM zooms. Tel: 631 227-2036 Toll Free: 800 896-6858 Fax: 631 585-1895 E-mail: info@sigmaphoto.com. And here is another tutorial video that takes you through the entire lens focus calibration procedure for a Sigma lens, using a lens calibration target. Hello everyone, I own a Nikon D3300 and a Sigma 18-35mm f/1.8 DC. As hard to say as it is, that's the bottom line. The camera should not be closer than 50 times the focal length, except for with telephoto lenses longer than 200mm where you should set the camera 25 times the focal length away from the target. Dunja Djudjic is a writer and photographer from Novi Sad, Serbia. Recently, the lens stopped auto-focusing. But that's just what's happened to some Sigma lens owners. Sigma’s strategy for designing autofocus lenses has been the good old method of reverse engineering. If you find that the subject in the image taken using autofocus looks softer than the one taken in live-view mode, you would need to tune the AF system. ONLINE REPAIR ORDER You can also try using a hand to block out the light or a lens hood, and lock your focus. Wait for the reflection to diminish or change positions, so that the reflection is less prominent. About 8 months ago I purchased a new Sigma 50-500mm f/4.5-6.3 DG OS HSM APO lens (that’s a mouthful). ONLINE REPAIR ORDER (I also used a tape measure to measure the different distances because you have 4 different distances to set. Third-party adjustments. Activate autofocus and watch where the edge snaps into focus relative to the bracket. The system looks at a split set of data received at the autofocus sensors, measures the difference, then tells the lens to move the direction and distance it calculates. I didn't notice that issue till I saw the pictures in the big screen. If however you are in possession of one of the lenses with a serial number mentioned above, please contact us on our special helpline 01707 376 795 and we will arrange to collect your lens at no cost to yourself. With modern high megapixel cameras even a slight front or back focus can be the difference between a usable image and a reject. If you happen to use Sigma ART series lenses, you can also use Sigma’s USB Dock for even more refined lens focus calibrations. Kelsey Media Ltd On the camera it must be set on AF, not M, and on the lens put it to M/A (A stands for Autofocus and M for Manual, M/A allows you to use both). Sigma 18-35mm is an ultrasonic motor, and Cannon 50mm is a stepping motor, but they both make the same grinding noise; The Lumix 12-60mm kit lens is completely silent, so it's most likely the speedbooster. Phase detect autofocus has always traded speed for focus tolerance. Photographers have been warned of a potential ‘autofocus defect’ affecting some Sigma telezoom lenses. Serious Viltrox EF-M2 II autofocus noise! The Granary, Downs Court To fix autofocus issue in your camera please follow these steps: Check that both the lens and the camera switches are both pointing towards Autofocus. Hacking Photography - one Picture at a time. Photographer Martin Melchior recently did this with his Sigma 70-210 f/2.8 APO lens, ... Nikon Z6 II vs Canon R5 vs Sony a7 III Autofocus Comparison. Here is a video from Sigma that explains how to use the Sigma USB Dock and Optimization Pro software to calibrate the focus of your Sigma lenses. Adam Frimer is a Guinness World Record holder, producer, and DoP based in Tel-Aviv, Israel. Lens is long out of warranty. If you want to get fancy, you could also glue a spare quick release to the bottom to make for speedy mounting on a tripod, and add a small bubble level to the top. Posted on April 3, 2011 by Adam. For further information, please visit www.sigma-imaging-uk.com/returns, call our helpline on 01707 376 795 or email us at support@sigma-imaging-uk.com. Anyone have any experience with Sigma for repairs? This type of lens focus calibration is really only practical for prime lenses. Focus ring problem is a common known fault of this Sigma lens for Sony. If there a way to fix this problem, as the AF area is not highlighted, also the focus mode is greyed out?? That happens because metal gear moves planstic focus ring inside the lens and the focus infinity position is being detected when the camera can't move the ring any further. He fell in love with photography in 2013 when he got a camera as a birthday present. You make the changes in the Function then Auto Focus settings, and the rest is the same as when done with to a Nikon body. Remove the lens without touching the tripod and attach the lens to the USB dock. Dec 04, 2020 ... How to Fix … Photographers have been warned of a potential ‘autofocus defect’ affecting some Sigma telezoom lenses. So, if the 0 is green, the 3 is purple and the 1 or the number 2 is black, this means that you have some front focusing. This issue could possibly occur in some lenses within the following range of serial numbers: APO 50-500mm F4.5-6.3 DG OS HSM: Serial Numbers between 10633051 and 10972000, APO 120-400mm F4.5-5.6 DG OS HSM: Serial Numbers between 10574001 and 10972000, APO 150-500mm F5-6.3 DG OS HSM: Serial Numbers between 10674301 and 10972000. If not, it'll cost around £85.00+ to fix (see the Sigma repair tariff at: Sigma Imaging (UK) Ltd). Yalding Hill One of the biggest problems you might come across is a lens that loses sharp focus when using autofocus.. Autofocus isn't quite what most people think it is. My 70-200 f/2.8 did the same thing. Sigma Corporation of America. Hello, The autofocus on my Canon 18-55mm is malfunctioning and I'm afraid it may be broken. Today I decided to update my camera firmware to version C 1.01 and now my lens autofocus funcionality is disabled. But it does not seem to how to fix sigma autofocus better, lens calibration, focusing, calibration. 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