cpl49@xxxxxxxxxxxxx writes:
<< I have one burning question about the OM's without mirror lock up.
Is the vibration dampened enough for macro and super telephoto?
TTL exposure being the key factor for the OM2 vs OM1.
If it is vibration free,
Charles Loeven >>
Hi Charles,
I followed this thread with hopes we would get some valuable impute, as this
has been a concern of mine since I converted from my OM1's to OM3's. And NO,
I am not going to ask you how long a string is!
In all the reading I have done, most Pros recommend using the lock-up at
slower(?) shutter speeds. Only John Shaw goes into much detail. He basically
claims that vibration from mirror "slap" last approx. 1/15 second so it has
little effect at slower or faster shutter speeds. So therefore, if you do not
have a mirror lock-up, try and avoid shooting at 1/15 & 1/8 second speeds. He
gives an example of; 'if exposure last 1 second, then 1/15 would be "un-sharp"
and 14/15 of the exposure would be sharp'.
I am still not sure if I buy John's rational but it does make one think.
BW
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