That "L" lens "look" - Canon v Sigma 35mm1.4

Started Apr 22, 2013 | Discussions thread
rpiotr01 Regular Member • Posts: 256
Re: Add QC to the list

gatorowl wrote:

Can you be more specific?  I'm yet to see a report of problems with this lens. And even though it would be nice to have almost every lens on the shelf be perfect, I don't think very many of us would be willing to pay the price of maintaining a standard that almost no manufacturer meets. Also, some  merchandise is damaged in transit, which is often (not always) beyond the control of the manufacturer.

Now, I agree that QC is a problem if 20-30% of a product has problem.  Hell, even 10-20% may be too high.

So, what percentage of Sigma 35mm 1.4 lenses do you believe are defective?

All anecdotal evidence of course! I don't have the means or the will to do it more scientifically. But I have seen some comments popping up in FM forums and elsewhere about focus issues that seem identical to what I get out of my Sigma 50 1.4. As the old saying goes, 'Once bitten, twice shy', so personally when I see anyone mention it at all it gives me serious pause.

One guy wrote about it here:

Don't shoot the messenger, just note the issue described.

Some further commentary at Blog in the comments section:

Like I said, all anecdotal evidence here so I don't know how widespread it is. However, based on my previous experience with Sigma I cannot discount it.

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