645Z Intermittent Mirror Stick

team_ream · 06-06-2017, 09:06 AM

Hello,
I am having an issue in which the mirror on my 645z will stick up for about a half second before capture. It doesn't happen with every frame, but probably 20% of the time and there is no condition that I can identify that causes it to happen. I've tried resetting to factory settings and trying all options on shake reduction. Has anyone else experienced this? It's extremely frustrating and I am currently unable to use the camera for anything besides still life. Thank you!

FilmORbitz · 06-07-2017, 07:30 PM

Originally posted by team_ream

Hello,
I am having an issue in which the mirror on my 645z will stick up for about a half second before capture. It doesn't happen with every frame, but probably 20% of the time and there is no condition that I can identify that causes it to happen. I've tried resetting to factory settings and trying all options on shake reduction. Has anyone else experienced this? It's extremely frustrating and I am currently unable to use the camera for anything besides still life. Thank you!

So I understand, you're saying the shutter release is sometimes delayed by 1/2 second? Do the images appear properly exposed? Are you using a focus-priority setting (or ANY priority)?

team_ream · 06-08-2017, 08:07 AM

Yes, shutter release is delayed, though mirror flip is not. Exposure is fine in all modes (m,Av,Tv) and the issue occurs in manual and autofocus, so I don't think focus-priority would be an issue, though I'm not sure if I've tried it.

Billwadman · 10-15-2018, 06:37 AM

I’ve just started having the same problem and looking for a solution. Sometimes goes dozens of good frames between. I’ve got about 70,000 shutter actuations and am hoping it’s not the whole mechanism. I’ve got a call into Precision Camera before I send it in.

06-06-2017, 09:06 AM	#1
team_ream New Member Join Date: Jun 2017 Posts: 6	645Z Intermittent Mirror Stick Hello, I am having an issue in which the mirror on my 645z will stick up for about a half second before capture. It doesn't happen with every frame, but probably 20% of the time and there is no condition that I can identify that causes it to happen. I've tried resetting to factory settings and trying all options on shake reduction. Has anyone else experienced this? It's extremely frustrating and I am currently unable to use the camera for anything besides still life. Thank you!

06-07-2017, 07:30 PM	#2
FilmORbitz Senior Member Join Date: Mar 2017 Location: Maryland Photos: Gallery Posts: 144	Originally posted by team_ream Hello, I am having an issue in which the mirror on my 645z will stick up for about a half second before capture. It doesn't happen with every frame, but probably 20% of the time and there is no condition that I can identify that causes it to happen. I've tried resetting to factory settings and trying all options on shake reduction. Has anyone else experienced this? It's extremely frustrating and I am currently unable to use the camera for anything besides still life. Thank you! So I understand, you're saying the shutter release is sometimes delayed by 1/2 second? Do the images appear properly exposed? Are you using a focus-priority setting (or ANY priority)? Last edited by FilmORbitz; 06-07-2017 at 07:34 PM. Reason: addl info

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06-08-2017, 08:07 AM	#3
team_ream New Member Join Date: Jun 2017 Posts: 6 Original Poster	Yes, shutter release is delayed, though mirror flip is not. Exposure is fine in all modes (m,Av,Tv) and the issue occurs in manual and autofocus, so I don't think focus-priority would be an issue, though I'm not sure if I've tried it.

10-15-2018, 06:37 AM	#4
Billwadman New Member Join Date: Oct 2018 Posts: 3	I’ve just started having the same problem and looking for a solution. Sometimes goes dozens of good frames between. I’ve got about 70,000 shutter actuations and am hoping it’s not the whole mechanism. I’ve got a call into Precision Camera before I send it in.