Archived posting to the Leica Users Group, 2000/02/19

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Subject: Re: [Leica] Aspherical v. ASPH
From: "dominique pellissier" <noct@club-internet.fr>
Date: Sat, 19 Feb 2000 10:29:04 +0100

- ----- Original Message -----
From: Mike Johnston <michaeljohnston@ameritech.net>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Friday, February 18, 2000 9:37 PM
Subject: [Leica] Aspherical v. ASPH


> >>>I own the first version aspherical.  If someone would be so kind as
> to lend
> me the 2nd version ASPH lens, I will gladly make a comparison between
> them.
>  Otherwise, I have seen no scientific test results (nor field studies)
> made
> of the first version aspherical, from Erwin or anyone else.  So it is
> pretty tough to claim that one is better than the other.  Theoretical
> coniderations about one versus two aspherical surfaces mean nothing.
> Show
> me the photographs (or MTF charts)<<<
>
>
> I've actually shot with the 1st version Aspherical. It is not inferior
> to anything. <g>
>
> --Mike
>

########
According to the MTF tests made by the french magazine Chasseur d'images,
there is absolutely no difference between the 2 lenses.