Reviews and Problems with Sigma 85mm F1.4 EX DG HSM
Showing 1-10 of 10
I would give it less than 1 star if I could.
27 February 2014
Summary: I bought this lens with high hopes. Within 20 minutes I wanted to return it. Within 2 hours I had already gotten everything together to ship it back. The auto focus is absolute crap, I have a canon lens 50mm that cost $100 that focuses a million times better than this lens. It roams and roams and roams without focusing, during the roaming it jerks. It jerks so hard that it actually shakes my entire camera. I even have a $400 sigma that has never done this!
Summary: I ordered this lens because of the overall rating of the reviewers. I was aware of Sigma lens quality control issues, but wanted to try my luck. The first lens I received had pretty smooth auto-focusing. Given enough contrast and light, the lens seemed to focus well. However, I tried out the lens with the downloaded focustestchart, and found that this lens had back focusing problems which got progressively worse when the F-number was increased.
Excerpt: I have had to return this lens 4 times now to Adorama because they continue sending me copies that consistently back focus. This is a significant problems on a F1.4 lens where the depth of field is already paper thin. <br /><br />To the lens' credit, it is very sharp stopped down to 5.6 or so, when the back focusing issues are not as apparent.
Summary: After 4 attempts now, I have given up on this lens. All of my copies with different serial number batches were plagued by back-focusing issues. The first copy was horrendous, focus was off by 2 feet shooting at a distance of just 15 feet. The other copies were still bad, but the focus seems to be off by about half as much. I am using these on a Nikon D90 where I have never had any focusing problems with any of my other 8 lenses, so i am hesitant to blame the camera.
Summary: Short version: I wouldn't buy a Sigma 85mm... I believe they underestimated the huge demand for the lens, and as a result, I think their quality-control couldn't keep-up. If you buy this lens, you have (IMO) a better-than-even chance that it will be at-least partially defective. Either it won't focus reliably, or it will front-focus or back-focus (all the time), OR worse still, it might be in the 10% that (to my recent experience) don't work at-all when you put it on...
Excerpt: Очень хотел приобрести, но вынужден был отказатся от покупки после проверки 3-х экземпляров в разных торговых точках. На Canon 5D mk II, автофокус рыскает на всех протестированных экземплярах при искусcтвенном освещении. На моем Sigma 50 f/1.4 такого не наблюдается.
Summary: Купил в польше, там проверить не было возможности. Приехал - объектив не фокусируется, при фокусировке слышны счелчки и фокусировочное кольцо перемещается рывками, ровно по циферкам расстояния. Обновлю отзыв после решения этой проблемы.
Leider erst nach Upgrade für Sony A77 kompartibel!
Detlef Seeger-Kößmeier, Amazon
13 October 2012
Summary: Mit viel Freude habe ich auf das Sigma gewartet. Die Erwartungen waren laut aller Rezensionen und Testberichte groß. Leider ging die erste Sendung bei DHL Express verloren. Dafür um so mehr Freude als die kostenfreie sofortige Ersatzlieferung von Amazon eintraf. Angesetzt an die A77 und Auslöser gedrückt...Nichts tat sich......von Hand den Focus eingestellt und wieder umgeschaltet, nochmal versucht....plötzlich sprang der AF hin und her, pumpte, blieb stehen....unscharf.