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2

Based on observing this video at youTube, it seems that your camera has a leaf shutter, sometimes called an iris shutter, based in the lens. Such shutters are much different from two-curtain focal plane shutters that sit directly in front of the film plane and must travel much further to open and close. This allows leaf shutters to be much "faster" than ...


3

I'm guessing the z-up 110 is using a leaf shutter; which is essentially using aperture control for both the exposure amount (size of opening) and exposure duration (time open). And I would guess it is reducing the opening size to prevent overexposure; because it doesn't have fine control over the flash output. A leaf shutter can be the aperture blades of ...


0

Obviously, a mechanical shutter is not going to beat the speed of light, and so doing a second curtain sync which may appear appear as not being fully open clearly makes little sense (and should spawn concern). However, and this is my guess, if the camera has control over the flash, a modern flash isn't just like a bulb going off -- where one opens the ...


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