Archived posting to the Leica Users Group, 2013/01/06

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Subject: [Leica] IMG: Pt.Lobos Formations
From: mark at rabinergroup.com (Mark Rabiner)
Date: Sun, 06 Jan 2013 14:11:17 -0500

I don't know what's the optimum f stop of  the lens f11?
Would f8 or 5.6 be a tad sharper and with the tilt still get from your feet
to infinity? What did it look like in the ground glass before you stopped
down?  Its an f4 lens?
I thought the point of a tilt is to not have to stop down so much but use
the optimum f stop of the lens you want to not the one you have to to get
DOF?


On 1/6/13 1:35 PM, "Bob Adler" <rgacpa at gmail.com> wrote:

> Why?
> I think the point of the practice was to practice getting sharp from my
> feet to the beginning of infinity. What purpose would wide open serve? If I
> want a faster shutter speed, I could always increase the ISO. About 400 is
> usable on this back.
> So curious about your comment...
> Thanks for taking a look, Mark.
> Bob
> 
> On Sun, Jan 6, 2013 at 9:37 AM, Mark Rabiner <mark at rabinergroup.com> 
> wrote:
> 
>> Would be interesting to see how wide open you could have shot this thing.
>> Looks great!
>> 
>> 
>> On 1/6/13 3:40 AM, "Bob Adler" <rgacpa at gmail.com> wrote:
>> 
>>> Nice day down by Carmel just hanging out. Went to Pt. Lobos for a lunch
>>> (windy and wet) and  a walk. Saw this and thought I'd practice my tilt
>>> technique. 3 images with back shift, stitched and cropped. About a 45
>>> minutes to set up and nail the focus. About 45 minutes of exposing.
>>> 
>>> 
>> http://gallery.leica-users.org/v/rgacpa_HI/20130105-Pano1-PtLobos.jpg.html
>>> 
>>> Please look large.
>>> Seems to work well. Hope you enjoy...
>>> Bob
>>> 
>>> Techie stuff:
>>> Alpa Max
>>> Alpa 50mm Rodegon HR SB34 with polarizer
>>> Alpa 7deg 17mm T/S adapter (about 1.4deg tilt)
>>> Alpa 17mm Extension
>>> PhaseOne IQ160
>>> f 11.6 @ ISO 50 and about .5 sec.
>> 
>> 
>> 
>> 
>> --
>> Mark William Rabiner
>> Photography
>> http://gallery.leica-users.org/v/lugalrabs/
>> 
>> 
>> 
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>> 
> 
> 




-- 
Mark William Rabiner
Photography
http://gallery.leica-users.org/v/lugalrabs/




Replies: Reply from rgacpa at gmail.com (Robert Adler) ([Leica] IMG: Pt.Lobos Formations)
In reply to: Message from rgacpa at gmail.com (Robert Adler) ([Leica] IMG: Pt.Lobos Formations)