Archived posting to the Leica Users Group, 2015/11/15

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Subject: [Leica] The SL
From: rgacpa at (Bob Adler)
Date: Sun, 15 Nov 2015 09:26:00 -1000
References: <> <> <> <> <>

Agreed and I really admire your focus stacking images Paul (the gargoyle at 
Notre Dame pops to mind). 

Bob Adler

> On Nov 15, 2015, at 6:29 AM, Paul Roark <roark.paul at> wrote:
> Bob,
> To put my earlier comment in context, I almost never use "focus peaking" at
> all.  The two most accurate focusing approaches I've seen with the Sony a7r
> series is, first, an accurately set infinity stop on a manual focus lens,
> and second, the magnifier.  The only Sony AF lens I have is the 35mm
> f/2.8.  The Sony AF seems to do a good job with that when it is wide open,
> but at f/8, its percentage of hits goes down significantly.  The model 2 is
> better than the first one, but I still rely on MF and the magnifier mostly.
> I suspect many on this forum who have mastered rangefinder street shooting
> will find the mirrorless camera focusing second rate.
> As to the tilts, I have been a huge fan of the Canon Tilt Shift series, but
> now I'm finding stacking of multiple shots with different focus points is
> what I usually use.  What I call "dual focus" shooting is now almost my
> norm.  This involves taking two quick shots, one focused on the near point
> of interest and the second on the distant point.  This second point is very
> often "infinity."  That is where the hard MF infinity stop becomes so
> important.  It makes the process very fast and thus holds movement in hand
> held shots to a minimum.
> Optimizing sharpness with these high MP sensors is tough.  There is no
> DOF.  At the pixel level minute focus changes even at f/8 are visible if
> one pixel peeps the image on the monitor.
> So, the question is where to put the paper-thin peak focus.  Everything
> being a compromise, I find a close point of interest and the distant
> background being tack sharp gives the best sense of depth and dimension to
> my B&W landscape shots.  But that's a matter of style of shooting that just
> seems to work for me.
> Paul
>> On Sat, Nov 14, 2015 at 10:11 PM, Robert Adler <rgacpa at> 
>> wrote:
>> Perhaps, but I could really never get it to work for me. And in low
>> contrast situations, awful.
>> Image review and camera adjustment in the field is the best answer for me.
>> I used to carry a MS Surface Pro connected to my MFDB. Now, with a CMOS
>> back, I need nothing else but the back's display for initial settings as
>> well as image review. It's a bit like falling off a log (and if you 
>> recall,
>> Paul, I'm quite good at that!) :-)
>>> On Fri, Nov 6, 2015 at 6:35 AM, Paul Roark <roark.paul at> 
>>> wrote:
>>> The most useful place I've seen focus peaking help is in setting the
>> degree
>>> of tilt with a tilt/shift lens.
>>> Paul
>>> _______________________________________________
>>> Leica Users Group.
>>> See for more information
>> --
>> Bob Adler
>> _______________________________________________
>> Leica Users Group.
>> See for more information
> _______________________________________________
> Leica Users Group.
> See for more information

In reply to: Message from hopsternew at (Geoff Hopkinson) ([Leica] The SL)
Message from red735i at (Frank Verizon1) ([Leica] The SL)
Message from roark.paul at (Paul Roark) ([Leica] The SL)
Message from rgacpa at (Robert Adler) ([Leica] The SL)
Message from roark.paul at (Paul Roark) ([Leica] The SL)