One thing that kinda disappoints me about my F4 is you have to manually lock-up the mirror with a very stiff lever to get vibration-isolation for slow shutter speeds, and then manually lower it back down after the shot. My FE2 (and similarly the FM, FM2, FE, probably a few others) has the less-hasslesome mirror pre-fire built into its self-timer mode: once the timer is running, the mirror goes ahead and flaps up as soon as you press your cable release. The F4 self-timer mode is *only* for selfies; the mirror flaps up when you take the shot, same as a regular shot.
(Though neither is as good as F6 and DSLRs which I believe have *both* a dedicated mirror-prefire mode (0.4 seconds on most, configurable on the D850) for medium-low shutter speeds, *and* for really slow shutter speeds a proper mirror lock-up (but it automatically comes back down after the shot, you don't have to flip a super stiff lever).)
But at the same time, the permanent mirror lock-up of the F4 (and F, F2, F3, F5), which the F6, the DSLRs, and the prosumer film bodies lack, is a really neat feature because it lets you use ancient non-retrofocal wide angles that protrude into the mirror box.
Dec 05, 2023 at 08:47 AM
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