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Re: [OM] number of aperture blades

Subject: Re: [OM] number of aperture blades
From: "Keith (R.K.) Berry" <keith_r.k.berry@xxxxxxxxxx>
Date: Mon, 25 Jan 1999 23:37:45 -0000
From: Giles <cnocbui@xxxxxxxxxxxxx>
Subject: Re: [OM] number of aperture blades



>....If Olympus chooses to use more in certain lenses
> there is probably a good technical reason for it.

Could it just be that the physically small diaphragm assemblies have 5 or 6
blades and the larger ones have correspondingly more in order to present a
smoother contour to the shape of the aperture? I am not acquainted with all
of the lenses on Steven Read's list but that was my impression.

Regards,
Keith
keith_r.k.berry@xxxxxxxxxx



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