[Leica] Big SL Lens ( DIameter) explanation

[Robert Adler]

Hi Don,
I tried the SL with my M lenses and the Leica SL-M adapter. I had a very
hard time getting quick focus with that. Emphasis on quick. I used various
methods: having the SL save a jpeg BW file which put the viewfinder in BW
mode, different colors to highlight in focus areas(focus peaking I think
it's called), view enlargement, etc. No love. Just couldn't do it as fast
as a rangefinder for critical focus (on eyes) at low apertures. And the
autofocus, though it worked marvelously was difficult for accurate wide
open focusing on moving subjects (dog, grands, even others who simply may
have moved their heads).

I do think the SL is a fantastic travel kit. Putting that 90-280 on your
belt in a lens case and resting the SL with the 24-90 on it would be a
fantastic travel kit! But alas I don't travel that much to warrant the
system. I find the M much more to my liking (even with an old Nocti glued
to it). Very simple and the M glass seems particularly well mated to the
sensor. I did not feel that way about M glass on the SL. Something was very
different IMO.

But I'm no pro like Tina, so this is just my personal impression.
Best,
Bob


Bob Adler
www.robertadlerphotography.com
*"Capturing Light One Frame At A Time"*

On Mon, Jan 15, 2018 at 10:10 AM, Don Dory <don.dory at gmail.com> wrote:

> They are using stepping motors so more alike the focusing Sony uses on
> their G series or like Zeiss used on their autofocus camera that moved the
> focal plane.  Quicker, quiet, and extremely precise as they stop
> immediately for all practical purposes.  If you go back to the Lensrental
> blogs you can see how single focal length glass is better with lower
> individual unit deviation, so I am glad that the major optical houses are
> offering really good single focal length glass.
>
> Really, with the M adapters you have your choice; small light and M glass,
> or autofocus and a much larger lens of "equal" optical quality.  Other than
> price who is against choice.
>
> On Mon, Jan 15, 2018 at 12:26 PM, Frank Filippone <red735i at verizon.net>
> wrote:
>
> > Marketing gibberish
> >
> > Translation:  We did not try to make it smaller, we tried to make it
> > better,
> > therefore the size didn't matter.
> >
> > The rack and pinion type of focusing that the picture shows is atypical
> of
> > AF lenses... most use rotary motors.
> >
> > Frank Filippone
> >
> > Red735i at verizon.net
> >
> >
> > -----Original Message-----
> > From: LUG [mailto:lug-bounces+red735i=verizon.net at leica-users.org] On
> > Behalf
> > Of Robert Adler
> > Sent: Monday, January 15, 2018 9:15 AM
> > To: Leica Users Group
> > Subject: Re: [Leica] Big SL Lens ( DIameter) explanation
> >
> > But it says all this was done to, "to preserve the compact dimensions of
> > the
> > lenses"...
> >
> >
> > Bob Adler
> > www.robertadlerphotography.com
> > *"Capturing Light One Frame At A Time"*
> >
> > On Mon, Jan 15, 2018 at 6:58 AM, Frank Filippone <red735i at verizon.net>
> > wrote:
> >
> > > We have been talking about how fat the SL lenses are in comparison to
> > > M lenses..
> > >
> > >
> > >
> > > Leica just announced the 75 and 90mm SL lenses.  In the intro
> > > information is a picture of what the lens looks like INSIDE..
> > >
> > > It will explain a lot about the diameter issues..
> > >
> > > Please have a look..
> > >
> > > http://us.leica-camera.com/Photography/Leica-SL/SL-
> > > Lenses/Prime-Lenses/APO-S
> > > ummicron-SL-75
> > >
> > >
> > >
> > >
> > >
> > > Frank Filippone
> > >
> > >
> > >
> > > Red735i at verizon.net
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Leica Users Group.
> > > See http://leica-users.org/mailman/listinfo/lug for more information
> > >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
>
>
> --
> Don
> don.dory at gmail.com
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>