Forum: Pentax Camera and Field Accessories
08-26-2020, 09:07 AM
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19mm glass lenses (without the black screw part) work with the pentax lens adapter. Screw in lenses (with the black metal screw rim joined on) from Olympus and Nikon F2/F3 do not fit/screw in to the adapter - but the Canon one I mentioned does.
Hope that helps!
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Forum: Pentax Camera and Field Accessories
08-24-2020, 04:09 AM
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Following up here to err, square the circle, so to speak. Hopefully it will be useful for someone in the future.
1. I got a hold of a Pentax 'corrective lens adapter'. I was searching for Pentax diopters and not turning up much. These essentially allow you to use different screw-in corrective lenses, or lenses without a screw.
2. Olympus 19mm, Nikon F2 and F3 screw-ins do not fit.
3. Canon F1 screw-in lenses work perfectly.
4. You can get 19mm corrective lenses on eBay for fairly cheap which will fit inside the Pentax adaptor.
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Forum: Pentax Camera and Field Accessories
08-20-2020, 09:18 AM
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Hey all,
I recently picked up a Spotmatic F, and I'm looking about for a diopter solution as I am pretty blind.
I've got the corrective lens adaptor coming, but I'm unsure what size the corrective lenses actually are. I know the originals are basically impossible to find, but my thinking is that I could either cut one out of reading glasses (not mad keen on this idea...) or else I could find a corrective lens for another camera and use that - but obviously it will be size dependent.
Does anyone happen to have the dimensions of the lens for the Spotmatic F/500?
Thank you! ---------- Post added 08-20-20 at 09:40 AM ---------- Ah, found it: Diopter / correction lens size question - PentaxForums.com
19mm. I thought this was just for the 67, but seems to be the K series.
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