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Gvie up on SD1? Pentax K-1/ar7ii? Need advice.

Started Mar 30, 2020 | Discussions thread
paulawd Regular Member • Posts: 406
Re: Gvie up on SD1? Pentax K-1/ar7ii? Need advice.
3

The capacity to see minor difference in hue is due to the nature of the filters.  Pixel shifting will not alter the filter characteristics.

Assume the RGB filters to be bandpass with very abrupt cutoffs, no overlap in response by the R, G or B filter. Assume two monochromatic lights of different frequency but both falling within the G band. There will be no response from the R or B sites. There will be no way to tell the lights apart.

With the filter characteristics of the Foveon sensor there would be a response in all layers. The response from the two lights will be different. In theory one would be able to notice the difference.

In practice, in my 19 years of digital photography, with a Nikon coolpix990, Canon DSLRs and Panasonic m43s and all of the Sigma camera's, sd14 and later, I have had more problems getting the colours right (pleasing) from the Sigma's than from any of the others. But that may be due to my eyesight, monitor or printer...

Paula

 paulawd's gear list:paulawd's gear list
Sigma DP2 Merrill Panasonic Lumix DMC-GX1 Panasonic Lumix DMC-GX7
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