[Leica] IMGs: Finding the "right lens/film/sensor/camera" combination:

[jhnichols at lighttube.net (Jim Nichols)]

George,

What I have read this afternoon indicates that the latest Leica lenses 
are focus-corrected to such high wavelengths that, for all intents and 
purposes, no further correction is required.  Having no intention of 
making such an investment any time soon, I did not spend a lot of time 
following this back to its source.

Another slant on this was that Leica removed the IR index because it 
confused their customers, and that it is really only valid at infinity, 
anyway.  And, with zoom lenses, there are multiple correction settings 
depending on where the lens is in the zoom range.

Most folks seem to feel that some experimenting is necessary to find the 
most useful setting for the type of photography intended to be carried out.

YMMV

Jim Nichols
Tullahoma, TN USA

On 9/10/2015 3:42 PM, George Lottermoser wrote:
> On Sep 10, 2015, at 3:28 PM, Jim Nichols wrote:
>
>>   The latest Leica lenses probably need no adjustment, but those are a 
>> little out of my reach.
> Any and all lenses require an IR focus shift adjustment;
> according to everything I've ever read.
>
> Regards,
> George Lottermoser
>
> http://www.imagist.com
> http://www.imagist.com/blog
> http://www.linkedin.com/in/imagist
>
>
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