Blurring on right side of image
Jan 10, 2019 18:19:17 #
I suspect that something has been damaged and is moving out of alignment based on your information that the camera and/or the lens was subjected to some shock and the issue is intermittent- it comes and goes!
I did have a issue like the one you describe when there was a misalignment that affected the flange focus distance on one side of the lens or the (in that case) the film plane. A similar problem may occur between the relationship of the lens to the sensor.
At the time, the engineering folks at the camera's manufacturer explained that the flange focus distance is extremely critical and if it is incorrect, no level of depth of field will compensated for the blurred section of the image. This is the clue that I am hypothesizing on.
This happened a very long time ago and the problem was in a Graflex XL medium format press camera. Turns out there was a engineering defect in the lens mount which they corrected. This was a brand new camera, right out of the box. I put it through it paces before putting it into service and found that one side of eh image was seriously out of focus regardless of the aperture.
I realize these are two very different camera types and systems and totally different technologies but the optical theory may relate.
If it occurs with all your lenses, you can isolate the problem to the body. If it is unique to one lens- the misalignment may be there.
If something has become unhinged or partially dislodged in the body or the lens, the issue may arise whe the camera is roatated from horizontal to vertical orientation or it is somehow jiggled or moved around. This might account for the intermittent occurrence.
This flange focus things immediately came to mind. I hope this helps or at least supplies a clue. It might be time for repair service.
I did have a issue like the one you describe when there was a misalignment that affected the flange focus distance on one side of the lens or the (in that case) the film plane. A similar problem may occur between the relationship of the lens to the sensor.
At the time, the engineering folks at the camera's manufacturer explained that the flange focus distance is extremely critical and if it is incorrect, no level of depth of field will compensated for the blurred section of the image. This is the clue that I am hypothesizing on.
This happened a very long time ago and the problem was in a Graflex XL medium format press camera. Turns out there was a engineering defect in the lens mount which they corrected. This was a brand new camera, right out of the box. I put it through it paces before putting it into service and found that one side of eh image was seriously out of focus regardless of the aperture.
I realize these are two very different camera types and systems and totally different technologies but the optical theory may relate.
If it occurs with all your lenses, you can isolate the problem to the body. If it is unique to one lens- the misalignment may be there.
If something has become unhinged or partially dislodged in the body or the lens, the issue may arise whe the camera is roatated from horizontal to vertical orientation or it is somehow jiggled or moved around. This might account for the intermittent occurrence.
This flange focus things immediately came to mind. I hope this helps or at least supplies a clue. It might be time for repair service.
Jan 10, 2019 21:04:49 #
Several great suggestions so far. Now, part of me is hoping that the repair is not too expensive, while another part is hoping it will cost over 50% of the cost of a new camera!!!
I have contacted a repair service to see what they think might be the cause and remedy.
I have contacted a repair service to see what they think might be the cause and remedy.
Jan 10, 2019 21:20:06 #
Bipod wrote:
On or off, IS is still in the optical path. I'm n... (show quote)
I think that's twice this month I find I agree with Bipod ...
must be nearing the "End of Days" ... REPENT ! REPENT !
While Bipod's general idea is sound, Sony SLT cameras
are not usually equipt with optical IS lenses, so in this
*particular* case, there's still some question remaining.
The OP indidcates use of a Sony OEM lens, which would
NOT have OIS.
.
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