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

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Subject: [Leica] Medium Format Digital
From: rgacpa at yahoo.com (Bob Adler)
Date: Thu, 7 Jul 2011 18:25:12 -0700
References: <CA3B8A2D.11746%mark@rabinergroup.com>

Hi Mark,
The pixels in this image have not been sharpened to protect the innocent 
(unless of course LR applied some sharpening when it output to the web...).

Bob Adler
http://www.rgaphoto.com

On Jul 7, 2011, at 1:07 PM, Mark Rabiner <mark at rabinergroup.com> wrote:

> 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
> 
> 
> 
> _______________________________________________
> Leica Users Group.
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Replies: Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] Medium Format Digital)
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Medium Format Digital)