Archived posting to the Leica Users Group, 2009/05/23

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Subject: [Leica] 90 APO Asph on M8
From: mingthein at gmail.com (Thein Onn Ming)
Date: Sun, 24 May 2009 14:01:23 +0800
References: <ee8fa51c0905231912y7fda2fcfn8e7a214db0c671e7@mail.gmail.com>

I've heard - didn't know it was as bad as that. Personally 75 is a  
bit in no-man's land for me, and I've decided to retain the D90 for  
tele work. It's just more accurate that way. Though having said that,  
if funds permit I wouldn't mind a 90 AA.

On May 24, 2009, at 10:12 AM, Marty Deveney wrote:

>> Mmm...75 lux...
>
> It is hard to get the 75 Summilux to focus like it is meant to on an
> M8.  Once you have succeeded, you then face a considerable amount of
> focus shift.  As designed by Dr Mandler and as adjusted by Leica or
> any other good repair person (as calibrated for the M8, or any other M
> Leica, really), the 75 Lux has slight front focus at f/1.4 - it's so
> slight you really only notice it right close up, and as you stop down
> focus shifts backward but within the depth of field. You can get the
> lens adjusted for perfect focus at f/1.4, but then your focus point is
> outside the depth of field to f/8.  I chose not to have this done
> because I have only one 75 mm lens.  I did get my Noctilux adjusted to
> focus perfectly at f1, but I have more than one 50 mm lens.
>
> I really like the 75 Summilux, but I agree with Geoff, for the M8 or
> 8.2, the 75 Summicron is the way to go.
>
> Marty
>
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> Leica Users Group.
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THEIN Onn Ming
*photohorologer ming at www.mingthein.com
www.flickr.com/mingthein







Replies: Reply from douglas.sharp at gmx.de (Douglas Sharp) ([Leica] Two young starlings)
Reply from douglas.sharp at gmx.de (Douglas Sharp) ([Leica] [LRflex] Two young starlings - levels adjusted)
In reply to: Message from benedenia at gmail.com (Marty Deveney) ([Leica] 90 APO Asph on M8)