Of course there are times when mirror lock-up is needed. Whether its a
bigger problem in MF than 35mm I'm nor really sure. I've had few
problems with mirror vibrations on my hasselblad. The thing with mirror
vibrations is the the relative weight of the mirror vs the body and the
eigen /own) frequency of the body. I've at times thought to use
seismometers to measure the vibratins from different cameras - being a
seismologist. These instruments can measure the exact frequencies of the
vibrations and one could have a deterministic measured value and not
just guesses which are based on how solid/loosely camrea is fixed to
tripod or hand. Maybe I'll make a test within the next few weeks of this?
Cheers,
Ronald
Pål Jensen wrote:
----- Original Message ----- From: "Dario Bonazza" <[EMAIL PROTECTED]>
No it doesn't, and the 645N demonstrated that there is no difference
between using the MLU or not using it with a well damped mirror like
the one of the 645.
MLU on the 645N was only added for marketing reasons, since so many
asked for it.
I disagree. There are several instances when you cannot put a camera
on a ideal surface where the small difference with or without mirror
lock actually makes a difference. However, for ordinary shooting
condition the lack of mirror lock is a non-issue.
The mirror pre-fire function is also nice elimination the need for a
remote release.
Pål
