Archived posting to the Leica Users Group, 2001/11/01

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Subject: Vs: [Leica] Photodo ratings for 35mm Summilux -MASPH and 50mm Summilux-M
From: "Raimo Korhonen" <raimo.korhonen@pp2.inet.fi>
Date: Thu, 1 Nov 2001 18:15:49 +0100

When you look at the graphs you notice that the performance of the 35 drops off steeply at the extreme corners of the frame. This and the peculiar weighting system of Photodo may be the reason.
All the best!
Raimo
Personal photography homepage at http://personal.inet.fi/private/raimo.korhonen

- -----Alkuperäinen viesti-----
Lähettäjä: Nathan Wajsman <wajsman@webshuttle.ch>
Vastaanottaja: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Päivä: 01. marraskuuta 2001 6:12
Aihe: Re: [Leica] Photodo ratings for 35mm Summilux -MASPH and 50mm Summilux-M


>Ray,
>
>It is impossible to evaluate test results unless you know the criteria
>used. On the face of it, rating the 50mm higher than the 35mm seems insane.
>I have both of these lenses. The 35mm is clearly better than the 50mm in
>terms of sharpness, detail, flare suppresion. This is not to say that the
>50mm is bad, it is outstanding, but the 35mm is even more outstanding. If
>Photodo gets an opposite result, then I can only conclude that either their
>methodology is flawed or someone made a mistake reporting the results.
>
>Nathan
>
>Ray Moth wrote:
>
>> Dear All,
>>
>> I'm not a great fan of lens testing but I like to have a quick look at
>> test results before I buy a lens, just in case! I was quite surprised
>> to see that Photodo - link
>> http://www.photodo.com/prod/lens/leicam.shtml#LeicaM - rates the 35mm
>> Summilux ASPH as the worst M lens they have ever tested, with an
>> overall rating of only 3.8. In contrast, the 50mm Summilux-M, which I
>> know is quite an old design, is rated at 4.2. It was my impression,
>> from reading the archive, that the 35mm Summilux ASPH was considered by
>> most people to be a star lens. So, is Photodo off the mark here or is
>> the 50mm Summilux really all that much better than the 35mm?
>>
>> Regards,
>>


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