Can Pentax make A Decent Lens? Ricoh have not fixed QC issues...

Started May 18, 2014 | Discussions thread
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Trevor G
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Re: Is it just me ...
In reply to rogerstpierre, May 19, 2014

rogerstpierre wrote:

Who see that your Nikon lens is equally decentred on the opposite side, except that as opposed to the Pentax lens, nothing is actually sharp!

That's not decentring, actually.

Many lenses are soft on the sides.  It's when one side is in focus and the other out of focus that you have decentring or skew.

And you are right that the Nikon lens is not as sharp as the Pentax, but it's also not decentred.

I especially bought the Pentax because it scores 18 at DXOMark where the Nikon lens scores 12.  Its superior, albeit one-sided, sharpness at f1.8 is what I want all across the frame.

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Trevor G
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