Thanx for the info- yeah, just something ive been wondering for a while.
It seems to be a fine line between a still video being on too long, and too short. I'll put your advise into practise on the next edit. I guess the aim is tho ensure its on screen for long enough to be registered, yet not so long that the audience gets bored.
Assuming its just the shots involved, ie no commentary etc, i assume a length of 4-5 sec is suitable. Thats what I'm doing ATM. Only prob is you can only see it once the project has been completed

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Thanks any way