iflynething
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- Oct 26, 2006
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Just last night, I was having problems with my D300. I thought it was the aperture ring getting stuck but instead of the viewfinder just being dim, I was getting a completely dark viewfinder.
I am at an event today and once taking the lens off, I can see that the mirror is getting stuck in the up position. I am not able to use the viewfinder. I can take the lens off and "take" a couple of pictures and the mirror will return to its normal position but once I have the lens back on and take 1 picture, it will stay in the up position.
Take your camera apart and looking with the mirror in the up position, the first indentions on either side, it looks like the left one is a little bent but I don't know if that's the issue here.
As I said, it will get stuck in the up position and there is actually resistance when I try to pull it back down, like it's supposed to be up. Once I have the lens off and take press the shutter release and the mirror goes down, the resistance is when I try to pull the mirror up, exact opposite. I don't see how that can change. I'm thinking it might actually have something to do with the aperture mechanism that actually makes the aperture open and close. When I press that all the way down (the "lever" on the left of the camera when it's facing you) the mirror is alright and will return to it's bottom position.
If you have any advice, please let me know. More than likely, I'm going to have to send it to Nikon, might as well get my camera and 70-200 cleaned and aligned in the process but I might be able to fix something before sending off, that'd be great. I have a D80 as a back-up, but it ain't no D300
Edit: I just was looking at my D80 which would be built pretty much the same. I held down the aperture mechanism on the camera and the mirror returns to the down position where as on the D300 when I hold the aperture mechanism down, the mirror stays up. Think it has some lube problems in there? I'm not sure how everything works inside.
~Michael~
I am at an event today and once taking the lens off, I can see that the mirror is getting stuck in the up position. I am not able to use the viewfinder. I can take the lens off and "take" a couple of pictures and the mirror will return to its normal position but once I have the lens back on and take 1 picture, it will stay in the up position.
Take your camera apart and looking with the mirror in the up position, the first indentions on either side, it looks like the left one is a little bent but I don't know if that's the issue here.
As I said, it will get stuck in the up position and there is actually resistance when I try to pull it back down, like it's supposed to be up. Once I have the lens off and take press the shutter release and the mirror goes down, the resistance is when I try to pull the mirror up, exact opposite. I don't see how that can change. I'm thinking it might actually have something to do with the aperture mechanism that actually makes the aperture open and close. When I press that all the way down (the "lever" on the left of the camera when it's facing you) the mirror is alright and will return to it's bottom position.
If you have any advice, please let me know. More than likely, I'm going to have to send it to Nikon, might as well get my camera and 70-200 cleaned and aligned in the process but I might be able to fix something before sending off, that'd be great. I have a D80 as a back-up, but it ain't no D300
Edit: I just was looking at my D80 which would be built pretty much the same. I held down the aperture mechanism on the camera and the mirror returns to the down position where as on the D300 when I hold the aperture mechanism down, the mirror stays up. Think it has some lube problems in there? I'm not sure how everything works inside.
~Michael~
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