I am hoping someone out there can explain this.
I recently bought a new filter for my camera and as I was passing it back & forth in front of the lens, I realized that the image was changing even in the area of the lens not covered by the filter.
I then used several other opaque object in the same way, passing them in front of the lens.
What I initially thought was an exposure or white balance shift at first glance, is actually a gamma shift. I made sure that all of my controls were set to manual and repeated this under several conditions.
You can very clearly see an obvious gain in black area detail as the object is introduced to the area in front of the camera. And an obvious shift back when it is removed.
I am concerend this will show up when I am too busy to notice and end up detroying my footage.
Does anyone have any idea what the heck this is?
J.
I recently bought a new filter for my camera and as I was passing it back & forth in front of the lens, I realized that the image was changing even in the area of the lens not covered by the filter.
I then used several other opaque object in the same way, passing them in front of the lens.
What I initially thought was an exposure or white balance shift at first glance, is actually a gamma shift. I made sure that all of my controls were set to manual and repeated this under several conditions.
You can very clearly see an obvious gain in black area detail as the object is introduced to the area in front of the camera. And an obvious shift back when it is removed.
I am concerend this will show up when I am too busy to notice and end up detroying my footage.
Does anyone have any idea what the heck this is?
J.
