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03-21-2013, 11:43 AM   #1
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Pentax Q home brew

My latest lens repurposing for the Q this one is a 40mm or maybe it was a 38mm


All the samples and images are here Pentax Q 40mm homebrew telephoto | Wallace Koopmans Artlog

03-21-2013, 02:26 PM   #2
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That's some fun experimenting! Impressive how you manage to go from a toy lens to almost up to par with a professionally manufactured compact camera, if only the aberations was slightly lower. Can you guess the aperture?
03-21-2013, 10:00 PM   #3
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QuoteOriginally posted by VisualDarkness Quote
That's some fun experimenting! Impressive how you manage to go from a toy lens to almost up to par with a professionally manufactured compact camera, if only the aberations was slightly lower. Can you guess the aperture?
The intermediate aperture took it to about f5.6 so I believe it's at about 6.3 now but I will have to do some testing which I actually plan on because I want to determine if there is more to be gained.
03-23-2013, 09:29 AM   #4
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Some images from the home brew 40mm telephoto







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