01-25-2012, 05:57 PM
[quote name='Klaus' timestamp='1327479577' post='15216']
Well, there are few pro lenses with a ** rating and often there are reasons for that. Just take the Canon 50/1.2L as an example. The extreme aperture makes it nearly impossible to design a higher performance lens. It is a purpose-made lens with strengths in low light and bokeh, less so corner sharpness.
As far as QC is concerned. Internally we chuckle a little about a competing website where the owner proudly presented his Leica images as reference for the immense quality. Even after loose inspection a centering defect was very obvious in his shots. So if even (some) professionals don't see issues, less so "normal" users will do. Thus 1 in 5 is Ok ... from a business perspective. We've to be realistic here. BTW, only 3% are defective according to the industry, BTW, but I suspect that this refers to electronic failures, not centering.
FWIW, I'm aware of at least manufacturer without any manufacturing QC. So far for "made in Japan" ...
[/quote]
Can you tell us who that is? My guess is Tokina!
Well, there are few pro lenses with a ** rating and often there are reasons for that. Just take the Canon 50/1.2L as an example. The extreme aperture makes it nearly impossible to design a higher performance lens. It is a purpose-made lens with strengths in low light and bokeh, less so corner sharpness.
As far as QC is concerned. Internally we chuckle a little about a competing website where the owner proudly presented his Leica images as reference for the immense quality. Even after loose inspection a centering defect was very obvious in his shots. So if even (some) professionals don't see issues, less so "normal" users will do. Thus 1 in 5 is Ok ... from a business perspective. We've to be realistic here. BTW, only 3% are defective according to the industry, BTW, but I suspect that this refers to electronic failures, not centering.
FWIW, I'm aware of at least manufacturer without any manufacturing QC. So far for "made in Japan" ...
[/quote]
Can you tell us who that is? My guess is Tokina!