I believe their family founder recently passed. Is the new impressive vitality (QUALITY) coming from the new generation, or what?
Jim do you have a link to this piece?Jim Saunders said:There is an article mentioned very recently on Petapixel that might be a partial answer to your question.
Jim
ScottyP said:I believe their family founder recently passed. Is the new impressive vitality (QUALITY) coming from the new generation, or what?
Pi said:I am not sure that they improved the quality. They have a few new lens designs but the AF problems and the copy variations seem to persist. Their build quality has been gradually improving long before the event you mentioned.
bchernicoff said:I feel like 90% of the grief that people hear about are from older/cheaper models from Sigma.
Pi said:bchernicoff said:I feel like 90% of the grief that people hear about are from older/cheaper models from Sigma.
I was talking about the 35, the 18-35the 50, the 85. I have never tried the first two (hence the use of the words "seems" but I have seen quite a few complaints about the AF). I have my own experience with the 50 and the 85, and the AF was below any acceptable standard, the most problematic was the AF was heavily dependent on the distance. The same complaint that I hear about the first two, it must be a Sigma thing.
I had to return the Sigma fisheye, the latest "silent upgrade" model for various problems.
bchernicoff said:So, you've had grief with two pre-Global Vision lenses and have seen complaints about other lenses you haven't tried...(complaints that haven't shown up in any of the reviews I've read.) Based on this you feel qualified to contradict the premise of this thread?
bchernicoff said:So, you've had grief with two pre-Global Vision lenses and have seen complaints about other lenses you haven't tried...(complaints that haven't shown up in any of the reviews I've read.) Based on this you feel qualified to contradict the premise of this thread?
Mt Spokane Photography said:I think the answer is simple, but its only my opinion.
Sales of DSLR's and lenses have been increasing by leaps and bounds over the past several years now. High end lenses are expensive, and sigma saw that there was a solid and increasing market for them. Getting to the point where you can compete is not simple, they had to hire and train more designers, technicians, and upgrade every part of their operation all the while increasing production rates and improving repair facilities. This required a fierce determination at the top management levels, so I'm impressed.
They will always have issues with autofocus, because each lens model has its own characteristics. A Sigma lens sends a code to a Canon DSLR identifying it as a similar Canon lens. That's the root of the problem, the camera then uses data in its internal data table to compensate for that referenced Canon lens, and it will not match the Sigma lens exactly, and will be different for different Canon camera models. Its a near impossible situation for Sigma, their dock feature allows it to be fixed for one camera but use it on a 2nd camera, and it can be way off.