That's interesting. The artifact is very much like one I saw on my first
K7, which went back under warranty. In my case, the band was light, not
dark, and happened in every frame mostly taken out doors. I wonder if
there could be a subtle or latent flaw in the sensor that is susceptible
to
On 1/17/2012 6:06 PM, Mat Maessen wrote:
On Tue, Jan 17, 2012 at 8:05 PM, Larry Colenl...@red4est.com wrote:
If he's shooting at slower than flash sync speed, it shouldn't be an issue.
should it?
In the US, any shutter speed 1/120th or faster is going to be an
issue. It's the flicker of
Here is an example (full, so have bandwidth before clicking)
http://www.brendemuehl.net/images/IMG16533.JPG
Just a couple of pixels wide, but affecting some parts of the image.
and here is just the upper left corner where you can see the band
(without having to load a monster image)
Wow, that was hard to find. I scanned the big image for quite a while
before I spotted that slight intensity change, about 1-2 pixels wide,
running vertically through the whole frame.
I think it supremely unlikely that that's from an optical source (like
florescent flicker), but I could well
I agree with Bruce regarding it likely being RFI interference of some kind.
While you obviously can't completely cover a camera, I'd be interested
in creating some kind of RFI shielding wrap that would leave the lens
exposed and see if that helps. (Obviously, this would work best with
the camera
BTW, what happens to it if you use a noise reduction filter on that
image? An artifact like that should be perceived as noise and greatly
reduced.
It is electrical, but I was told that it was a fluorescent artifact --
albeit an electrical one.
I've not attempted any noise reduction. Are you
I was thinking in either Ps (Ninja or Noiseware) or Lightroom (Lr's NR
is superb).
On Wed, Jan 18, 2012 at 11:33 AM, Collin Brendemuehl
coll...@brendemuehl.net wrote:
BTW, what happens to it if you use a noise reduction filter on that
image? An artifact like that should be perceived as noise
On 17/01/2012 12:42 PM, Collin Brendemuehl wrote:
First time I've run into this one.
K7 under warehouse fluorescent lights creates an interference
line about 20% in from the left side, adding a purplish tinge to the image.
So ... has anyone here run into this and ...
Anyone have a Photoshop
That's interesting. The artifact is very much like one I saw on my first
K7, which went back under warranty. In my case, the band was light, not
dark, and happened in every frame mostly taken out doors. I wonder if
there could be a subtle or latent flaw in the sensor that is susceptible
to
First time I've run into this one.
K7 under warehouse fluorescent lights creates an interference
line about 20% in from the left side, adding a purplish tinge to the image.
So ... has anyone here run into this and ...
Anyone have a Photoshop macro for dealing with it by adjusting the color of
On Jan 17, 2012, at 12:42, Collin Brendemuehl wrote:
First time I've run into this one.
K7 under warehouse fluorescent lights creates an interference
line about 20% in from the left side, adding a purplish tinge to the image.
So ... has anyone here run into this and ...
Anyone have a
On Jan 17, 2012, at 2:50 PM, Charles Robinson wrote:
On Jan 17, 2012, at 12:42, Collin Brendemuehl wrote:
First time I've run into this one.
K7 under warehouse fluorescent lights creates an interference
line about 20% in from the left side, adding a purplish tinge to the image.
So ... has
On Tue, Jan 17, 2012 at 8:05 PM, Larry Colen l...@red4est.com wrote:
If he's shooting at slower than flash sync speed, it shouldn't be an issue.
should it?
In the US, any shutter speed 1/120th or faster is going to be an
issue. It's the flicker of the lights, not the shutter, that matter.
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