Has anyone used this with the sigma 16.12 and do you think its useful?
501280
I thought is was invaluable. What good is all the data you get from a ride if you can't download and store it and compare it to other data at a later data. I'm glad I bought it, and I'm really glad it came with a code that allowed me to download the Sigma software for free. I use it with my Sigma ROX 6.0.
2191462
Although i havent tried it ith that lens specificially, it works with all lens that I have tried including the Sigma 50-500. Auto focus may not work very well however because of the loss in aperture. I also found that instead of individual sensor focus, group sensor auto focus works more reliably.
1196561
I believe so, other photogs are using it on full frame, go to Sigma site, or query internet
1608557
Yes, I used it with my Nikon D3100 (F mount) to adapt a couple sigma lenses (technically sony alpha mount, or equivalent). It feels great, no wobbles or anything. As noted in previous comment, must work in full manual control and may need to change flash settings (turn TTL off). There is an aperture ring on the adapter that is actually pretty nice, but makes it tough in low light w/o a tripod...make note of that when considering what lenses you are using. Overall I would highly recommend this product, especially since you really have no other choice!
1183360
I would love to hear about a review of this sigma vs the canon flashes. as i have a sx20 and i need a large flash for large dim rooms.
234489
Sorry I don't know about compatibility with Pentax. I have had other Sigma products which have been reliable.
632570
I went for the Sigma and am happy with the result, particularly at the wide end. The image stabiliser has given me clear sharp images out to the full 200mm so have no qualms about its utility for my impending trip. Perhaps the only issue is its weight which makes the camera/lens/filters/hood, a hefty parcel to lug through crowded European cities.
1354917
I have only just begun using it, but it seems to be useful. so far, one thing I have noticed is with the multiplier on, it sometimes has a hard time focusing. I will be taking it with me on an upcoming international trip, as it is smaller to carry than a dSLR with various lenses.
812304
Thanks for the additional info. I am primarily involved in shooting fencing matches, and can usually get fairly close to the action, so I'll probably be taking a good look at the Sigma lens.
1776012
It works perfectly with both of Pentax DSLR cameras. Sigma does have the same flash for Nikons and should work well. Not sure aboutbremote use.
74980
I'm not sure. I know there is an adapter out there for the sigma so I don't think it will fit out of the box.
346220
I purchased it for firmware updates which worked like it should. I only have the 35 so I would assume it is comp with that lens, but check the sigma website to be sure. Happy shooting :)
124471
It should work fine with that setup. It comes with adapter rings for 55mm and 62mm filter mounts. If your lens has a different filter size then you'll also need the correct Sigma adapter for that size.
49855
Have had my Sigma 50 for a year (w/a Nikon mount) and to date it has not failed yet. There are times when I prefer manual, but the AF hasn't failed.
2122056
I've used this now on several wedding assignments and didn't have any issues technically speaking. It did the job for me although I have to say that they don't give you what a dedicated macro lens would - so don't expect miracles. It also takes a bit of practice. It does allow you to focus closer and get some amazing shots. If your dealing with a high paying client, then go with a dedicated macro lens. On my part, I will continue using these until I can buy the Canon 100mm Macro - and then I'll probably still always have this in my bag.
39577
I checked the Sigma website. It appears to work except for built in flash. http://www.sigma-photo.co.jp/english/flash_and_accessory/flash/flash_610dg_super_match.html
261838
I bought it for my Canon. When you shop Sigma, check the specs to see which brand of cameras it was made for.