Fs700 moire

I noticed the same effect on other vertical, bright surfaces as well, during the same video job. That was yesterday.

Can this effect be reproduced today?

You bet. I just lit an edge of my shiny black plastic printer, so the glare created a bright vertical line. Voila - dancing lines all over it when viewing on-camera. The lines are easily visible on cam's built-in monitor. I noticed that the artifacts get worse when the picture is brighter - for example, with 709 800% Gamma.

If I roll the camera off-axis (just hand-holding it now, so it's easy to manipulate) by about 30 degrees, the moire/aliasing/whatever thing disappears. It seems to only occur if the bright line is (about) parallel to the cam's Y dimension of the sensor.
 
Last edited:
I think the highlights clipping is the problem. Not really sure of a solution other than not clipping the highlights... I think the FS700 handles moire incredibly well. Almost non-existant compared to my 7D.
 
jshbckr said:
I think the FS700 handles moire incredibly well. Almost non-existant compared to my 7D.
Click to expand...

:) 7D was atrocious in terms of moire, and my copy also used to overheat very easily in both video, and timelapse modes... 5D MK II also has very bad moire... But that's why we want FS700 as a proper video device, with decent low moire, right?
 
I have seen this edge problem many times. Looks like a bug or a "feature delete option" if upgrading to an F5. Doesn't make sense that so obvious a problem exists with the same basic sensor and hardware. Though I recall grumbling that other Sony cameras have this issue which if true means a hardware design flaw.
 
Well I stand corrected. That's a disappointing aspect of the image. Why haven't I seen people complain about this before though?
 
Barry_Green said:
Why haven't I seen people complain about this before though?
Click to expand...

Adam Wilt was talking about it a year ago:

CG700.014-002_.jpg

[h=5]Practical Considerations: Overload artifacts[/h]
http://provideocoalition.com/awilt/story/high_speed_and_low_light_with_the_nex-fs700/P2
 
Well, there it is then! I guess the moral of the story is if you don't like that artifact, don't let the picture blow out.

Looks like it really is a type of artifact like the old Red sunspot.
 
You must log in or register to reply here.
Back
Top