Archived posting to the Leica Users Group, 2001/02/27

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Subject: [Leica] Re: 15mm Heliar, Optimum f-stop... oops
From: Christer Almqvist <christer@almqvist.net>
Date: Wed, 28 Feb 2001 09:56:36 +0200
References: <B6C2031B.14D0%douglas@dysmedia.com>

>On 2/27/01 11:00 PM, Leica Users digest expressed the following:
>
>>>  I just used my 15mm Heliar at Mardi Gras. I shot 3 rolls of color
>>>  and 3 rolls of black and white with the 15mm on my M1. I've only
>>>  had the lens one month and I'm amazed by its sharpness!

This lens has advantages (small size, small price) but  IMHO 
sharpness is not one its advantages. Can it be that you interpret the 
increased d.o.f. as sharpness? The point below about not moving past 
5.6 is certainly valid.
>
>>It's worth mentioning again that this lens is spectacular, but *only at one
>>f-stop*.  It's worth gluing the aperture ring so that it can't move 
>>from f5.6.
>>(In this I agree with Erwin, btw.)
>
>>I wondered why I didn't like the lens much, until I discovered its 
>>performance
>>at 5.6.  (I seem to remember it's almost okay at f4 too, but don't quote me.)
>
>
>Um... really don't quote me.  Please.  The maximum aperture is 4.5.  (Which
>is what I meant.)
>
>
>Douglas Cooper
>http://www.dysmedia.com

- -- 
Christer Almqvist
D-20255 Hamburg, Germany and/or
F-50590 Regnéville-sur-Mer, France

In reply to: Message from Douglas Cooper <douglas@dysmedia.com> ([Leica] Re: 15mm Heliar, Optimum f-stop... oops)