Do I need this for my canon 70d and sigma 18-35mm 1.8?
70303
Like anything, the need is up to you. I have a dock for my Sigma Art lens, including the one you own. The dock allows you from you home with an Internet connection and computer, to update your lens software, and to correct front and rear focusing issues. Because Sigma is a third party lens company, making lens for several cameras, they don't always get the focusing right for every camera manufacturer. All of my Sigma Art lens (3) needed some correction. By the way, you have purchased the Best APSC (crop sensor) lens in the world! My Sigma 18-35mm f1.8 takes the 'Best' pictures of any lens I own. And, I own both crop sensor and full frame cameras and lens to match both.
785356
Don't know. I don't have that lens. I am using it with a Tamron 70-200 2.8 (similar to the same Canon L lens in size) and no problem.
169952
I use this with a canon 60D with sigma 18-35mm with no problem. Obviously my set up is much lighter then your set up but when I initially got this product I felt it was a little overkill for my set up and am pretty sure sure it should hold up just fine. I don't recommend using a sigma 500mm on this LOL. I've also mounted a LED projector with no problem as well.
286512
It works on my t3i/600d, not sure what mount the 70D carries. If same mount, then it should work for FD lenses and your camera.Note that performance is somewhat lackluster with intermediate glass, adjustment for infinity focus is difficult to maintain as glass can freely rotate with movement. Wasn't wonderfully impressed, but it does the job, and for the price and being able to use previously unavailable lenses, I suppose I'd purchase again.
26528
I can't say for sure about your equipment. I can tell you that I have a Nikon D90 and D7000 and older model Tamron 35-135 and 70-210 lenses. The adapter works perfectly for me and allows me to continue using my older lenses that make great shots. I had thought about selling the lenses but at the going rate you can't expect much. Now though, I have two valuable lenses that I am still able to use.
1121632
If your Sigma 70-300 has a Nikon Mount the Fotodiox lens mount adapter will work fine - as a manual lens.
1878990
Sure. It attaches to the front of whatever lens you are using so it doesn't come between the camera and lens contacts. FYI, if you only need a couple of the rings, not the whole set, you might want to look at rings made of brass. They are sturdier and the threads have less chance of locking down. Also, I recommend getting filter stacking caps in whatever sizes you need. (For instance, one set of caps in 72mm for the biggest ring in your stack and another set in 49 mm if that's the smallest. Or, if you have one 52-58mm ring, get a cap set in each of those.) Those will keep their shape while knocking around in your bag.
1841951
You need to match the filter size to each individual lens. You need a 52mm filter for the 1.8, and a 72mm for the 18-200.
2062359
No, because the camera already has the Minolta type shoe. So you don't really need the adapter.
1995981
It is not necessary for the the 50mm f1.8D. This is used to manually set the aperture on a G lens. This is useful for reversing a G lens which doesn't have an aperture ring. The 50mm f1.8D has an aperture ring so this would be redundant.
552324
No but I think you probably would not need IS while shooting with this lens. I have never found the need to have it but I can understand one's need to have IS on heavier, higher aperture types of lenses. ... I love this lenses ability to get in close to the subject & with a flash, it really gets it! It truly is a great wide angle lens! ...
1240121
I do not own a 70D. I own a 5D mk lll and it works with that so if the veiwfinder is the same,,yes.
45803
Hi David,Not that I'm aware of. My lense, lent to a mate with a 7100, worked no problem to produce some comparative test images for him against a Nikon 70-200 and he has subsequently gone and bought a 50-150 on the basis of that test! The dealers here in Rome (I've spoken to two) have been perfectly happy to use their USB mounts to update lenses for customers for free. I don't know if that is the case in the UK but I would imagine so, so if you were to find you had an issue (which I believe to be an unlikely scenario) I'd suggest taking it to a Sigma dealer and ask him to update it for you but I really don't think you will find it necessary.Happy New Year.Will Hi David,Not that I'm aware of. My lense, lent to a mate with a 7100, worked no problem to produce some comparative test images for him against a Nikon 70-200 and he has subsequently gone and bought a 50-150 on the basis of that test! The dealers here in Rome (I've spoken to two) have been perfectly happy to use their USB mounts to update lenses for customers for free. I don't know if that is the case in the UK but I would imagine so, so if you were to find you had an issue (which I believe to be an unlikely scenario) I'd suggest taking it to a Sigma dealer and ask him to update it... » Read More Hi David,Not that I'm aware of. My lense, lent to a mate with a 7100, worked no problem to produce some comparative test images for him against a Nikon 70-200 and he has subsequently gone and bought a 50-150 on the basis of that test! The dealers here in Rome (I've spoken to two) have been perfectly happy to use their USB mounts to update lenses for customers for free. I don't know if that is the case in the UK but I would imagine so, so if you were to find you had an issue (which I believe to be an unlikely scenario) I'd suggest taking it to a Sigma dealer and ask him to update it for you but I really don't think you will find it necessary.Happy New Year.Will « Show Less
1882895
it works with my 60d and is designed for canons so it is likely perfect for your 70d also.
2103069
Yes! I have both these lenses and i think it's so much better than the 35mm 1.8. Plus i use it with the Metabones SpeedBooster on my BlackMagic Pocket Cinema Camera and it's Killer!!!
1074280
Yes you can. However i do not recommend you buying this unless if you have a full frame camera to use it on or you are planning to buy a full frame camera. Otherwise, i recommend sigma 17-50mm f2.8 OS for canon 3Ti
1326276
If your lens is working out of the box, there isn't any need for this dock in my opinion. I've only used it once and didn't see any difference in my lens on a D800. This item should of been included with the Len when you buy it.