RD-1 strange shutter behavior

[pstevenin]

I've noticed several times with my RD-1 (FW V2) that when I stress the camera for a while (let say 6 shots in a row in few seconds) I cock the shutter and then wait for a while let say 1 minute, and when I actuate the shutter, I does not sound to respect the selected speed (by ear I would say half a second).

I did that with a flash mounted ( a regular modern cobra) @ 400 1/30 flash-auto mode.

Exposure is okay but obviously managed by the flash.

I do not notice that without a flash. I've tried to reproduce this in a test loop, with (of course) no success.

Do you think it is linked with Li-On battery stress? (the battery level was always at least over 50%, and it is a epson genuine one)

 

[saxshooter]

Could it be that you are hearing the sound of only the secondary curtain tripping? It has happened to me, firing in quick succession with the firmware update. It sounds like it is taking a long exposure, but the exposure is correct. It is just a slightly different sound of the shutter when only the secondary curtain trips. I havent tried doing this without the lens mounted to see if it is visible to the eye. Not sure if it is linked to the battery, but in some of my non-OEM batteries when I do quick bursts, the battery level does drop down near empty and then comes back up.

 

[pstevenin]

You're probably right. But I distinctly hear the first curtain and then the second one. If you the exposure is right (without a flash...) I'll try to better inspect next time it occurs (without a flash). The problem is usually I'm just in the midle of a session, and I'm not in the mood for thorough testing these times.

 

[J. Borger]

This is "normal" and happens on a regular base since updating the firmare from R-d1 to R-d1s.

 

[pstevenin]

This is "normal" and happens on a regular base since updating the firmare from R-d1 to R-d1s.

You mean the 'sound' is normal and the exposure is still correct?

If you're positive, I can live with, definetely.

Thanks a lot for the input.

Philippe.