« on: Today at 03:03:45 AM »
I didn't say when I went to Focus on Imaging, it was just around the time for their Macro HSM mk 1 I think. Again it was so far out of adjustment, I called over the attendant and he confirmed it. And then put the lens under the counter with a post it note on it. It was worse than my old copy.
It's been surprising how many 70-200mm f2.8 lenses Sigma has put out over the years. I'm assuming this is to correct various design faults with each successive model. Other brands like Nikon or Canon tend to get it right first time and let that model run for a good 10 years or so. That said, I took some great pictures with my old copy.
My 70-200 EX HSM f2.8 (new at the time) was so far out of calibration...it had to go to Sigma twice with the Camera. It was bad. I'm not going to re-tell my Sigma woes here again, I did that a few pages back. Hello if you are new to this thread
I've sent only one lenses back to Canon for being out of Calibration, which I did under their 1 year warranty. It didn't cost a thing and came back perfect.
Yep, it true about the new Siggi 35mm, it's a fine lens from Siggi. I don't think it destroys the Canon, but it's a sharper lens. I've had my Canon copy for about 5 years now and I've taken a lot of photos with mine. It's easily paid for itself many times over. The Siggi fisheye's are very good too and I particularly have a soft spot for their 12-24mm, although my copy had been back to Sigma twice.
i had the HSM mk II and it was front focusing a lot on 50D (i ended with a +16 mfa) and almost perfect on 450D...so the fault is Sigma or Canon? And i have at lest one more person that got the same results... weird; then some months after i got the OS version of the lens , beacuse of a good offer from amazon in eu, and the focus was quite good on both cameras (just a +3 to achieve the maximum sharpness). And dont think sigma did a lot of 70-200 because as far i remember there are four lenses so far
1) 70-200 APO
2) 70-200 HSM
3) 70-200 HSM II (it's not a redesign, it's a rework to make the lens cheaper, so smae perfromance)
4) 70-200 HSM OS (total redesign)
canon did 3.
know peoples that had to exchange the Canon 35L 1.4 twice before they got a good sample and for what i know, canon doesnt offer free calibration for their lenses, at least here in italy, but maybe i am wrong, because i own just a canon lens (a shitty 17-85... +5 for the record); i am not sure it's completly a sigma QC fault the AF problems, because with nikon the problems are not so pronunced as with canon. i think the accuracy of focues with canon camera is more firmware dependant than other brands, but with the new dock, i guess a lot of problems will go away