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Re: [OM] [OT] two OM items for sale -> browsers -> darkrooms

Subject: Re: [OM] [OT] two OM items for sale -> browsers -> darkrooms
From: "Bernd Moeller" <dsl33687a@xxxxxxxxxxxxxxxxx>
Date: Fri, 11 Jan 2002 08:23:18 +0100
Hi AG,

> > You're right of course. How powerful is your enlarger bulb?
> 
> 75 watt in the Omega and 150 watt in the Federal.  The Federal
> is supposed to be temperature limited to 75 watts, but the heat
> glass is already broken so sue me.  Besides, I haven't used it
> much, but will probably try converting to cold-light.  The bulb
> I put in the Omega is a fullsized one, whereas the original was
> much smaller.  I really need to get the proper sized bulb, but
> find that the lighting is much more even and diffusion like.

75 Watt is also in my Opemus 5.

> To get back on OM track again, I have found that the 35/2.8 and
> 50/3.5 have produced the sharpest negatives with deep DOF,
> whereas the 100/2.8 might be a smidgen sharper, but DOF is less.
>  Nearly every lens I own peaks at F8 in sharpness.  Gary's tests
> pretty much prove that too.

Ah, that tells all: you were talking about Zuikos! I thougth you were talking 
about enlarger lenses. I wonder whether the f8 rule also is true for enlarger 
lenses?

Regards

Bernd


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