At very high, (for the K20D at least), ISOs the K20D "grain" pattern
takes on a linear look across the sensor. Not that kind of pattern
banding but still it's noticeable it you look for it. I used to hide it
by imposing an actual film grain pattern over it in Photoshop. It
could be a characteristic of the chip, or it could be a problem of
introduced noise in the electronics the possibilities are endless,
though there's probably one that's more likely than any other, I just
don't know what it is. I expect the Fuji engineers know, but they
probably won't tell.
On 1/25/2017 4:07 PM, Charles Robinson wrote:
That's it. I'll wager the lines line up with his sensor and that the image
as we see it is rotated somewhat from the original capture. But what would
cause those lines, I have no idea. My 2MP Olympus 2040Z would do that with
extended exposures (over 2 seconds) but that was a million years ago,
photographically.
On Wed, Jan 25, 2017 at 3:04 PM, Mark Roberts <[email protected]>
wrote:
Eric Weir wrote:
On Jan 25, 2017, at 3:03 PM, Bob W-PDML <[email protected]> wrote:
I can see it
Well, for those that see it—I don’t either, but I might have to have it
pointed out to me—how do you explain it?
I hit it with a dramatic Curves adjustment in Photoshop to make it
more obvious: http://www.robertstech.com/temp/ericweir.jpg
--
Mark Roberts - Photography & Multimedia
www.robertstech.com
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and
follow the directions.
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
