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Re: [OM] IR focus indicator (was) 35-70 F/3.5-4.5 formula

Subject: Re: [OM] IR focus indicator (was) 35-70 F/3.5-4.5 formula
From: Clive Warren <Clive.Warren@xxxxxxxxxxxxx>
Date: Sun, 8 Feb 1998 23:05:15 +0100
At 5:24 pm +0100 8/2/98, Siri Bjoner wrote:

>Marco,
>
>> Another reason for the missing "R" red-dot is cost-saving; one less color
>> (and process) during manufacturing.  As for the zooms, the IR focus may be
>> different for various focal lengths, so the easy way out is to leave it
>> out.
>
>True - a lot of both bodies and lenses don`t need IR-focussing. Half my
>lenses have a red dot, the remaining don`t.
>There are also a lot of camera bodies that are unsuitable for IR-work; I`m
>pretty certain that all OM-bodies are IR-compatible but when buying a new
>body, always check with the salesperson to make sure!


Yep, that's true, however either wrap 120 roll film backing paper round the
film pressure plate (black side up), or pay up $70 for a plain plate if you
want to avoid a dimple pattern on your negs from Kodak HIE.


All the best,

              Clive   http://clive.bel-epa.com



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