Archived posting to the Leica Users Group, 2011/07/07

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Subject: [Leica] Medium Format Digital
From: mark at rabinergroup.com (Mark Rabiner)
Date: Thu, 07 Jul 2011 16:07:09 -0400

I think an advantage to medium format digital is it can take a lot of
sharpening and not get all funny.
This to me is also an advantage to using lower ISO's...
than maybe you'd think you'd even need.

A high iso small format capture makes of an image which needs to be
sharpened very very carefully; as you can go to far and the next day you
look at it and you realized you have to redo it. Unless there is a  layer in
Photoshop for sharpening. Which I'd think there easily could be.


Mark William Rabiner



> From: Tina Manley <images at comporium.net>
> Reply-To: Leica Users Group <lug at leica-users.org>
> Date: Thu, 7 Jul 2011 12:52:26 -0400
> To: Leica Users Group <lug at leica-users.org>
> Subject: Re: [Leica] Medium Format Digital
> 
> Now that is one sharp photo!!  You had a clear view of Owens Valley.  When
> we went up two days later there was a lot of haze.  Here is my panorama 
> from
> the same spot:
> http://www.pbase.com/image/136216932
> 
> I have a problem smoothing out skies in panoramas.  Are you using Photoshop
> to stitch your's?
> 
> Tina
> 
> On Thu, Jul 7, 2011 at 2:42 AM, Bob Adler <rgacpa at yahoo.com> wrote:
> 
>> My P45+ stitched in portrait orientation (18mm shift on each side) with 
>> the
>> 35mm lens gives a rough equivalent of a medium format 17.5mm lens. That
>> translates into what, about a 12mm rectilinear 35mm equivalent?
>> 
>> And you want what?
>> See:
>> http://www.rgaphoto.com/GT/content/Valley_View_Pano_W_large.html
>> 
>> This image is from 3 main segments produced by using 3 back shifts with a
>> portrait oriented P45+ and 35mm lens, for each segment. The 3 back shifts 
>> of
>> each segment were stitched together from the images of the 35mm lens 
>> shifted
>> in portrait orientation. This roughly equates to the view of each of the 3
>> segments equaling the field of view of a 17.5mm medium format lens/ 12mm
>> lens on a 35mm format system.  3of these were stitched(swinging the camera
>> on a panoramic head) to give the image. It was then cropped. The file is
>> over 2.2GB.
>> 
>> Give me a place to stand and I will hang this image!
>> 
>> In all seriousness there are some correctly stated and some overstated
>> items in this expose. But all in all, medium format for landscapes is at a
>> really nice place right now...
>> 
>> Anyone want to buy some Hassy V and Canon equip? :-)
>> Bob
>> 
>> Bob Adler
>> http://www.rgaphoto.com
>> 
>> On Jul 6, 2011, at 9:25 PM, Richard Man <richard at imagecraft.com> wrote:
>> 
>>> My pipe dream is that someone, well, Fuji specifically :-) would make a
>>> 
>>> 18x49mm sensor, and build a digital RF system for it. The sensor size is
>>> just about the same size as the "full frame" 35mm, so the technology and
>>> cost is known (remember that full frame Canon and Sony are as "low" as
>>> $2500).
>>> 
>>> The result would of course be a cropped digital XPan. The lens should be
>>> much easier to design - heck, lets make them all F2.8 while we are at it.
>>> 
>>> Sell the whole system with 3 lens (30, 45 and 90 equivalent) for $10,000
>> to
>>> $12,000, and I bet they will sell at least as many of that as Pentax
>> 645D.
>>> 
>>> 
>>> 
>>> 
>>> --
>>> // richard <http://www.imagecraft.com/>
>>> // icc blog: <http://imagecraft.com/blog/>
>>> // richard's personal photo blog: <http://www.5pmlight.com>
>>> [ For technical support on ImageCraft products, please include all
>> previous
>>> replies in your msgs. ]
>>> 
>>> _______________________________________________
>>> 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
>> 
>> 
> 
> 
> -- 
> Tina Manley, ASMP
> www.tinamanley.com
> 
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information




Replies: Reply from rgacpa at yahoo.com (Bob Adler) ([Leica] Medium Format Digital)
Reply from jayanand at gmail.com (Jayanand Govindaraj) ([Leica] Medium Format Digital)
In reply to: Message from images at comporium.net (Tina Manley) ([Leica] Medium Format Digital)