High pixel density ruining P&S higher ISO capability
Rich
Me
> http://www.dpreview.com/reviews/fujifilmf200exr/page16.asp
The fuzziness in that shot is at least partly (and possibly mainly)
diffraction.
F12 on the F200 camera will be well and truly diffraction limited with a
6mp output file. Comparing the result to another model set at F5.6 is crazy.
Do DPR think that the pixel layout / binning gets rid of the fact that
the camera is still completely diffraction limited at 6mp output, 1 1/6
sensor size, and f11?
Hughes
> Rich wrote:
> >http://www.dpreview.com/reviews/fujifilmf200exr/page16.asp
>
> The fuzziness in that shot is at least partly (and possibly mainly)
> diffraction.
I'm analyzing this site.
http://photography-on-the.net/forum/showthread.php?t=353350&page=2
Maybe it has something to do with your theory too.
The reviewer said his Canon Telephoto lens are much
clearer than the Rubinar Telephoto (1000mm F/10
which I also got). The Canon have range
of 2.8 to 5.6 focal ratio which would put its airy
disc 1/2 that of the Rubinar F/10. Now because
the pixel scale of the Rubinar can image finer
than the Canon. Then the pixels of pictures taken
with Rubinar would be full of diffraction images.
I'm looking in the web site for the exact aperture sizes
of the Canon 300, 400 series telephotos lens. I wonder if
you know it's exact front lens size as well as other data
because I want to know its resolving power to its if
the airy disc is enclosed in one pixel using the Canon
digicam and their telephotos which can explain why
image is clear even at pixel zoom because they are
not seeing diffraction disks unlike that of Rubinar images.
Hughes