[Leica] Leica 24-90 SL lens question

[leica_r8 at hotmail.com (Aram Langhans)]

Thanks for doing that.  Helps? Well, maybe not because this is a feature I 
would really like in a lens.  I might just have to look at my investments 
for something to sell.  Did you try focusing on something at infinity to see 
if the stop is really in focus at infinity?

Aram

Aram Langhans
(Semi) Retired  Science Teacher
& Unemployed photographer
 
?The Human Genome Project has proved Darwin more right than Darwin himself 
would ever have dared dream.?   James D. Watson

-----Original Message-----
From: Tina Manley [mailto:images at comporium.net] 
Sent: Wednesday, December 02, 2015 9:17 AM
To: Leica Users Group <lug at leica-users.org>
Subject: Re: [Leica] Leica 24-90 SL lens question

Hi, Aram -  I had to get the lens out and play with it to try and answer 
your questions.  As far as I can tell, it has a hard stop at infinity and 
does not focus past infinity.  With manual focus, the focus does not change 
as you zoom.  I can use the magnify feature to focus on a tiny section of 
the scene and then zoom in or out to any length and the focus remains sharp 
on that one point.

Hope this helps!

Tina

On Tue, Dec 1, 2015 at 4:10 PM, Aram Langhans <leica_r8 at hotmail.com> 
wrote:

> Tina and anyone else with this new camera.  I have a question.  Does 
> this lens have a hard stop at infinity or does it focus past infinity 
> in manual mode?  I am thinking of night astrophotography.  My35-70/4 
> has a hard focus at infinity.  I just turn till it stops and I am all 
> set, no matter what focal length I am using.  Not so on my Nikon AF 
> lenses.  Not sure it this is the way a lens has to be designed for AF, 
> or if it is just cheaper to do so.
>
> Also, in manual focus,  if you focus on an object at 90mm, does the 
> focus change as you zoom out to 24?  In other words, does the focus 
> change as you move through the zoom range?  Again, the 35-70/4 does 
> not change focus as you zoom, but all my Nikon zooms do.  The 16-36/4, 
> the 24-120/4 and the 70-200/4.  The worst offender is the 24-120.  My 
> love to hate lens. Again, I am thinking of astrophotography.  If the 
> 24-90 SL lens does not have a hard infinity,  I would like to be able 
> to focus once on a star then not have to refocus if you change the 
> focal length.  Hard infinity would be best, but this would also work after 
> the initial focusing.
>
> I looked at the review by Dowling.  I really need to stop looking.  It 
> really makes me want one  in spite of the size.  It looks like a very 
> impressive camera with a great viewfinder, the thing I really dislike 
> about the other mirrorless cameras.  But I know I should not spend 
> that much money, if I had it, and just enjoy what I have now for a while.
>
> Thanks.
>
> Aram
>
> Aram Langhans
> (Semi) Retired  Science Teacher
> & Unemployed photographer
>
> ?The Human Genome Project has proved Darwin more right than Darwin himself
> would ever have dared dream.?   James D. Watson
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information




--
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