[Neil Manson]

Hi -
Quick query - should the mirror flop when using the green button optical/DOF preview on a k-r? It does so every time (sometimes more than once).
It does not do so on my K100D - is this a different design or a problem (the camera has just returned from repair for, uhhm, uncontrolled mirror flopping!)
best,
Neil

[Adam]

No, I don't think the mirror should move at all.

[Neil Manson]

Thanks Adam - i've been looking around the forum and some seem to think that the k-r mirror is meant to.
There is a thread here
"The K-r has no aperture motor (the little bump in the K-5 body on the right side (left if you look onto the lens) of the mirror box. Therefore, it needs a second source to pull the aperture spring back. It is all part of a single mechanics which rewinds the shutter curtains, rewinds the mirror and pushes the mount's aperture lever. The K-7/5 needed to get an entirely new mirror box (new dampened mirror, new shutter, new aperture motor) to separate functions."

What I find a bit odd is that the old K100D doesn't seem to need the mirror to do this.

[boriscleto]

The mirror cycles with the K-x when you stop down, and I'm sure it does on the K2000 as well.

[Marc Sabatella]

Yes, it's one reason why Icould never consider the K-x for my own use: I use manual lenses with stop down metering all the time, and in quiet environments (jazz concerts) where all that extra flopping would drive me crazy. I had heard mixed reports on whether this was true for the K-r, but I tended to believe the reports that said it suffered the same flaw.