Archived posting to the Leica Users Group, 2005/06/17

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Subject: [Leica] Re: darkroom focusing
From: creativevisions at verizon.net (Michael J Herring)
Date: Fri Jun 17 05:57:46 2005
References: <BED66FC3.16EB3%mark@rabinergroup.com>

It is not a myth.
----- Original Message -----
From: "Mark Rabiner" <mark@rabinergroup.com>
To: "Leica Users Group" <lug@leica-users.org>
Sent: Thursday, June 16, 2005 2:52 AM
Subject: Re: [Leica] Re: darkroom focusing


>
>>
>> Some lenses I've had or used that have had focus shift problems:
>> Various 50mm f/2.8 Rodagons of different eras (all)
>> 50mm f/2.8 Componons - same
>> 40mm Focotar
>> 240 Componon
>> 150 Rodagons and Componons of various ages
>> 75 Nikkor
>> 50/2.8 Nikkor
>> 105 Rodagon (slight)
>> WA Componon 60
>>
>>
>> Lenses that have negligible or no focus shift:
>> Nikkor 80/5.6
>> Nikkor 63
>> Focotar 50 (second)
>> S-Orthoplanar 60
>>
> I've never been able to detect any focus shift with most of the Nikors
> which
> I've used and two or three of the Componon. I'm wondering how Henning is
> deciding he's getting focus shift as take his recommendations pretty
> seriously. I pretty much think it's a myth for the most part.
> I strongly recommend focusing wide open and then stop down to your
working
> aperture. I'd hate to have this stuff driving me crazy.
> Focusing stopped down just seems very weird to me.
>
> Mark Rabiner
> Photography
> Portland Oregon
> http://rabinergroup.com/
>
>
>
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>


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Replies: Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] Re: darkroom focusing)
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Re: darkroom focusing)