on 11/27/01 12:19 PM, Walt Wayman at hiwayman@xxxxxxxxx wrote:
snipped Walt's highly scientific description
>The results:
>
> OM-1: 59 dB
> OM-4: 59 dB
> OM-4Ti: 58 dB
> OM-1 with mirror locked up: 57 dB
> OM-4 with mirror and aperture prefire: 57 dB
> OM-4Ti with mirror and aperture prefire: 57 dB
> Self-timer beep: 20 beeps @ 56 dB, last 4 @ 60 dB
> Any OM with Winder 2: 67 dB
> Any OM with Motor Drive 2: 62 dB
>
Walt, I think 3db represents a *doubling* of the sound level. So 1db would
be a noticable and significant difference... but how repeatable are your
measurements? Did you try each one many times, or just once/a few times?
I think your results would be more statistically valid if you tested more OM
bodies in each configuration... which means you need to buy more OM's -- all
in the interest of science, of course!
;-)
--
Jim Brokaw
OM-1's, -2's, -4's, (no -3's yet) and no OM-oney...
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