Pentax K3 rumor from the plant... shhh...

Started Sep 18, 2013 | Discussions thread
paulkienitz Veteran Member • Posts: 5,281
Re: Pentax K3 rumor from the plant... shhh...

sorrel wrote:

why keep talking about megapixel. 20,40 whatever. if it isn't optimum by now, tell me when, 100mg. it will never be optimum.

It will be optimum when the pixel pitch is smaller than the minimum circle of confusion of any available lens.  In theory that might mean getting it down near one micron, but in practice, three microns should probably do it for any real-life lens.  That makes a megapixel count of about 40 for APS size, or 90 for full frame.  A perfectly achievable number.

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Q with 02 zoom and Nikkor 180/2.8 ED for birding
K10D, Sig 17-70, DA 55-300, FA 50/1.4 "billy bass"
discards: DA 50-200 "zipper", F 100-300, Sigma 135-400 "piglet", M 400/5.6 "the Great Truncheon"

 paulkienitz's gear list:paulkienitz's gear list
Pentax Q Pentax K-3 Pentax smc DA 55-300mm F4.0-5.8 ED Pentax smc DA* 300mm F4.0 ED (IF) SDM Samyang 8mm F3.5 Aspherical IF MC Fisheye +4 more
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