Archived posting to the Leica Users Group, 2008/11/25

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Subject: [Leica] CS4 Extended Depth of Field Trial
From: len-001 at verizon.net (Leonard Taupier)
Date: Tue Nov 25 08:37:47 2008
References: <200811250504.mAP54RTB031406@server1.waverley.reid.org> <BLU121-DS7FE0F3D1DCB78FA951FDFD40B0@phx.gbl> <492C2870.60806@tele2.fr>

To me this process would only be useful to bring near and far away  
points in focus when it couldn't be done in the camera. The sundial  
photo should be made easily in the camera by stopping down the lens,  
especially since the camera was on a tripod to start. Am I missing  
something?

Len


On Nov 25, 2008, at 11:31 AM, Philippe AMARD wrote:

> Have you tried with focus points that are much further apart?
>
> Nice one this dial was in any case - lovely tones too.
> thanks for sharing
> Phx
>
> Aram Langhans wrote:
>
>> My understanding is that it looks at each layer (photo taken with a
>> different focal point) and looks for the sharpest details and  
>> masks the rest
>> of the photo.  When it is all done, you can look at each layer and  
>> see what
>> is has chosen as "in focus" and see how it masks the rest out.   
>> Not sure
>> what it did in the case of the leaves that were moving.  It is really
>> remarkable.
>>
>> I put my Leica 35-70/4 on my Rebel XTi and set it up on a tripod.   
>> I used
>> f-4 or 1/2 stop down (I forgot) and focused on the front of the  
>> sundial,
>> then gradually moved the focus point further back until about 6  
>> exposures
>> later, I was focused on the back of the sundial.  I plan on trying  
>> a much
>> deeper trial maybe today. I'll pick a subject w/o any moving  
>> leaves or
>> objects this time.  I was going to try my picket fence, but  
>> thought that
>> would be too academic and boring.  Sundials are more interesting  
>> to me.
>>
>> Aram
>>
>>
>>
>>> Date: Mon, 24 Nov 2008 19:05:16 -0800
>>> From: mehrdad <msadat@gmail.com>
>>> Subject: Re: [Leica] CS4 Extended Depth of Field Trial
>>> To: "Leica Users Group" <lug@leica-users.org>
>>> Message-ID:
>>>     <440b792d0811241905p7f686d36s66d5fbc4c47a5e73@mail.gmail.com>
>>> Content-Type: text/plain; charset=ISO-8859-1
>>>
>>> what does it do>? does blur the surrounding?
>>>
>>>
>>> On Mon, Nov 24, 2008 at 6:56 PM, Aram Langhans <leicar@q.com> wrote:
>>>
>>>
>>>> Here is an attempt at using PS CS4's Extended DOF feature.  It is a
>>>>
>>> blend
>>>
>>>> of
>>>> 6 images.  It looks a bit funny because the wind was blowing around
>>>>
>>> some of
>>>
>>>> the leaves, so some are ghostly in appearance.  I kind of like  
>>>> that,
>>>>
>>> but
>>>
>>>> that was not the purpose.  I just wanted to give the new feature a
>>>>
>>> try.
>>>
>>>> Anyone have some better examples?
>>>>
>>>> <
>>>> http://gallery.leica-users.org/v/Aram/misc/sundial-fall-9911-
>>>>
>>> Edit.jpg.html
>>>
>>>> http://tinyurl.com/5na5zu
>>>>
>>>>
>>>> Comments welcome.
>>>>
>>>> Aram
>>
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>>
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>
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Replies: Reply from hoppyman at bigpond.net.au (Geoff Hopkinson) ([Leica] CS4 Extended Depth of Field Trial)
Reply from henningw at archiphoto.com (Henning Wulff) ([Leica] CS4 Extended Depth of Field Trial)
In reply to: Message from leicar at q.com (Aram Langhans) ([Leica] CS4 Extended Depth of Field Trial)
Message from philippe.amard at tele2.fr (Philippe AMARD) ([Leica] CS4 Extended Depth of Field Trial)