Hi Tom,
Yes, the OM shutter curtain travel speed is fixed at around 11ms(?).
But you and many people ignored there is a second curtain. At 1/60s,
the 2nd curtain will only start when 1st curtain finish. The total
time could be around 22ms. Only at 1/2000s the two curtains action
time can be close to 11ms. The timing is just provide you a rough
idea, actually there could be 1 or 2ms between the 1st and 2nd curtain
at 1/60s and at 1/2000s there is a slit between the 1st and 2nd
curtain that could take 1 or 2ms to run.
C.H.Ling
Tom@xxxxxxxxxxxxx wrote:
>
> On what speeds does the F280 change it's duration and why?
> It seems to me the curtain slot always takes 1/60 at 1/60 and faster
> speeds, and at slower speeds, the flash could be done in 1/60 without any
> problem.
>
> tOM
>
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