So how does the OM-2000 compare to the other OMs with regard to the
noise level? Louder or quieter?
H. Wibowo
_____________________________________________________
Walt Wayman wrote:
> While browsing through the digest to see what had been happening
> while I was away in the wilderness, I saw the topic of camera
> shutter sounds had come up once again. This has been discussed
> several times previously, with some saying they can hear a
> distinct difference between the OM-1 and the OM-4(T). Admittedly,
> they sound slightly different, but I?ve never really been able to
> say one is any louder than the other.
>
> Since I can't recall this minor controversy ever being settled, in
> an attempt to add some objective evidence, and to satisfy my own
> curiosity, I dug into my hi-fi toys and got out my handy-dandy,
> trusty Radio Shack sound level meter in an attempt to obtain some
> scientific proof, one way or the other. Some of you may be
> amazed, and some may refuse to believe my findings. So be it.
>
> The methodology (see, I'm even using real, gen-u-wine scientific
> terminology) in making the readings listed below was as follows:
> Each camera had a lens mounted (50/1.4 Zuiko), was set at 1/60
> sec. (OM-4 and OM-4Ti on manual) and was situated on a mouse pad
> atop a large oak desk in a very quiet (below 45 dB) room. The
> sound meter was positioned one inch from the front of the lens,
> resting on enough folded up bubblewrap to raise it to the level of
> the center of the lens, and the shutter was tripped carefully with
> one or the other index finger -- I didn't record which. The
> cameras, of course, were not loaded with film, which I can't
> imagine would make any difference. 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
>
> All cameras have been well maintained and the foam is in good
> condition in each. I don't think my OM-1 is defective in any way,
> so it shouldn't be abnormally loud, and all three OM-4s came out
> with identical readings. The OM-4Ti is just over a year old,
> which may account for it being one dB quieter.
>
> To add insult to injury, consider the following:
>
> Pentax Spotmatic (bought new in 1966): 57 dB
> Copal No. 0-0 shutter (100mm APO Symmar on one of my baby
> Graphics): 53 dB
>
> What can I say? Facts is facts.
>
> Screams of those who refuse to accept my incontrovertible and
> irrefutable findings and choose to imagine they hear things that
> they really don't: 110 dB! :-)
>
> Walt Wayman
>
>
>
>
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