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

Started May 18, 2014 | Discussions thread
Mark Ransom
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Re: Can Pentax make A Decent Lens? Ricoh have not fixed QC issues...
In reply to Trevor G, May 23, 2014

Trevor G wrote:
HD coatings are designed more to stop flare, I believe. Other things, including the accuracy of the lens elements, contribute to contrast.

Coatings reduce internal reflections, which cause flare in the worst case and loss of contrast when it's more spread out and subtle.

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