If P-R can release FA 645 lenses why not K mount

Started 5 months ago | Discussions thread
viking79
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Re: If P-R can release FA 645 lenses why not K mount
In reply to Cideway, 5 months ago

Cideway wrote:

The issue as I understood it, cannot find the links now, was that the 35mm lenses used a particular type of glasses that is no longer made due to the lead in the ingredients. This may not have applied to the 645 lenses and as such they are free to be re-manufactured unmodified.

Lead does impact index of refraction, so it likely means they would have to have a suitable replacement or redesign the lens for a different type of glass.

As for OP, I would rather see them spend effort making new design lenses.  I would be all for the old lenses for the launch of a Pentax full frame, but for APS-C don't see a lot of reason for them to re-release those.

Eric

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