Losing faith in mirrorless cameras
Feb 10, 2020 15:26:47 #
skyspy wrote:
I just did another test. I do believe the higher the quality setting(61 megapixels) the worse the problem is. At standard quality (24 megapixels) you can't see the artifacts at any f-stop setting. So what I'm seeing are very, very small and aren't visible until higher quality settings
I disagree with that. My Sony a7iii can show dust spots just fine!!! I shoot RAW and I doubt that is a factor.
Feb 10, 2020 15:32:41 #
My a7iii was the worst of the Sonys I have owned in terms of dust. Came with it as a new camera, continued to get dust even when I wasn't changing lenses except once a day in very clean environments. Really defeated the purpose of having an ilc. Almost completely turned me away from Sony. I also shoot raw.
Feb 10, 2020 15:59:40 #
How do you explain the test? Everything was kept the same except the quality setting which definitely introduced the dust at the higher settings. Same lens.
Feb 10, 2020 16:03:56 #
Sony is famous for having dust problems
The Canon EOS R has a guard that comes down when the lens is not on the camera. Are you sure that this is on the sensor and not on the lens? I've been shooting mostly mirrorless for the past 6 months and I really don't have any issues like this
The Canon EOS R has a guard that comes down when the lens is not on the camera. Are you sure that this is on the sensor and not on the lens? I've been shooting mostly mirrorless for the past 6 months and I really don't have any issues like this
Feb 10, 2020 16:08:41 #
ButchS
Loc: Spokane, WA
Abo wrote:
Easy... Fast aircraft, and fly West... stops the sun rising 
Very fast. The Earth rotates at 1000 mph.
Feb 10, 2020 16:10:01 #
Feb 10, 2020 17:48:59 #
skyspy wrote:
...I do believe the higher the quality setting(61 megapixels) the worse the problem is...
OK, now you have to tell us what kind of camera you are using. It makes a difference and I don't think it will influence responses at this point.
Some rules I live by: Keep it clean and in cases when not in use. Turn off the camera when changing lenses. Minimize the time a camera does not have a lens. Long term storage should be in ziploc bags with silica gel packets.
Feb 10, 2020 18:02:22 #
Seabastes wrote:
I understand the problem occurs the further down a lens is stopped down settings on a mirrorless camera.
Not just mirrorless. All cameras are subject to spots showing on the sensor and the more you stop down, the more defined these spots become.
Feb 10, 2020 18:18:48 #
I'm using a sony a7Riv. All images were taken at 61 megapixels. I tested against Sony a7Rii, Canon 5d and Canon 6d Mark II
Feb 10, 2020 19:21:44 #
ButchS
Loc: Spokane, WA
I still say the best thing you can do, is to take care of how you change lenses.
I have a number of Fuji mirrorless cameras. Only one has ever had a dust spot and it was easily removed with a rocket blower.
I also have a number of Nikon DSLR cameras. None of which has ever had any dust spots.
I have a number of Fuji mirrorless cameras. Only one has ever had a dust spot and it was easily removed with a rocket blower.
I also have a number of Nikon DSLR cameras. None of which has ever had any dust spots.
Feb 10, 2020 19:26:04 #
tvhasben
Loc: Chattanooga, Tennessee
aikiboy wrote:
I am not very experienced, by the way, but what I see in your photo looks more like a smear of something rather than specs of dust.
Without seeing the image at 100% I can't really tell, but it looks like what happened to an old Fujicolor S7000 I had, and that is a burn on the sensor from accidentally pointing at sun or bright light. Just to the right of the lineman you can see it in this pic from 2007
Feb 10, 2020 19:45:05 #
tvhasben wrote:
Without seeing the image at 100% I can't really tell, but it looks like what happened to an old Fujicolor S7000 I had, and that is a burn on the sensor from accidentally pointing at sun or bright light. Just to the right of the lineman you can see it in this pic from 2007
He said it moved around.
Feb 10, 2020 19:59:14 #
skyspy wrote:
How do you explain the test? Everything was kept the same except the quality setting which definitely introduced the dust at the higher settings. Same lens.
When you answer, please use “quote reply” so we know who you responding to
Feb 10, 2020 20:04:30 #
skyspy wrote:
In the attached image you can see what appears to ... (show quote)
Another thought. Are you using mainly long throw zoom lenses? They suck in air as the barrel extends. With the air comes anything in it. Apparently Sony bodies are especially leaky - something I did not know, as I have never owned one. My Fujis seem to be quite tight, and no dirt problems so long as care is taken changing lenses
Feb 10, 2020 21:10:51 #
CatMarley wrote:
Another thought. Are you using mainly long throw zoom lenses? They suck in air as the barrel extends. With the air comes anything in it. Apparently Sony bodies are especially leaky - something I did not know, as I have never owned one. My Fujis seem to be quite tight, and no dirt problems so long as care is taken changing lenses
No all of my zooms move lens internally and the length doesn't change. I generally don't use zooms and utilize fixed prime lens
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