keithwms said:When I went from the F5 to the F100 I thought MLU would be an issue... it has not been. The mirror damping on the F100 is very good
Anyone who can add to the list 35mm SLR's with MLU?
The OM-1 was the only Olympus OM model with mirror lock up, which combined with its size and weight made it sought after among astrophotographers.I don't remember if the OM1 had MLU or not, but don't believe it did.
The OM-1 was the only Olympus OM model with mirror lock up, which combined with its size and weight made it sought after among astrophotographers.
Leica R6/R6.2 have mirror lock up. If you flick the top of the shutter release on a Leica SL with a finger tip, it will lock up the mirror without firing. Not sure if this works on the SL2. I can make it work consistently on an SL.
Lee
And, as has already been pointed out, it's stupid to photograph the laser point, and one might as well photograph a resolution chart. If the laser is attached to the camera solidly, it's going to move in exactly the same way the camera is, and so it will be no surprise that the laser point stays a nice sharp dot, even as the rest of the photograph becomes blurred by mirror slap. Trying to acertain mirror slap by photographing a laser point from a laser attached to the camera is about as perfectly flawed a test as one could imagine. Lasers don't actually draw streaks on walls....they just look like they do.
I'd think that even a page of newsprint would be more informative.
Some kind of scale on that amplitude axis would be useful for interpreting results. An inch of deflection at one foot would be different than a few microns at 100 meters. It's also only one unidentified camera/lens/tripod combination, stated to be typical, as if there's no significant deviation among models.I found a very nice graph showing the vibration amplitude set out to the shutter & mirror opening subs. Closing action
See:http://photo.net/learn/nature/mlu
rhmimac
I'm saying, that if the laser is attached to the camera, the dot is never going to be blurred, regardless of how shaky the camera is. If the camera moves, the dot will also move. Think about it. You need to photograph something that's external to the camera if you want to see if the camera is shaking.
I bought a Hasselblad, some time ago, to get sharp photos.
-No one told me how nice it was to just handhold the thing.
-No one told me how (relatively) light it was.
-No one told me how nice it was to use a prism finder like a PME-5
-No one told me how responsive the thing is.
-No one told me just how fantastic a 6x6 neg really is.
-No one told me how spontaneous you can be with the thing.
What they did tell me was:
-Tripod mount, always
-Use remote shutter release always
-Mirror up always
-Be boring
I think I'll do what feels right at the time.
Mirror slap is an over exaggerated effect that has become lone battle cry urban myth propagated by RF users who have not figured out how to overcome their parallax problems and how to use a polarizer correctly on an RF camera.
http://www.youtube.com/watch?v=CkKcbyh2CrA
Steve
A rangefinder lens, because of it simplicity, will also have less glass elements hence less glass surfaces than a SLR lens. This can give better contrast. Lenses with less elements are simpler to make, simpler in construction so may be far more rugged than a given SLR lens.Rangefinders are simpler optically than SLRs, but focus more slowly (depending on how much practice you have had), and less precisely than SLR cameras.
The reason that photographers use rangefinders for street photography is because HCB did it.
I'm saying, that if the laser is attached to the camera, the dot is never going to be blurred, regardless of how shaky the camera is. If the camera moves, the dot will also move. Think about it. You need to photograph something that's external to the camera if you want to see if the camera is shaking.
Here's a thought experiment: Use a 10 second exposure and move the camera up and down? Will the dot be blurred? Of course; it will be a line. Now explain why the physics of motion are different for 10 seconds vs. 1/10th of a second.
Yes, the dot moves with the camera. That's the point. However the background doesn't move and the path the dot traces on the background will be recorded.
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