Home | Contact Us | FAQ | Search & Site Map | Link to Us
Sign In | Join | Other 45 Sites in Network
PhotoKB Home
Discussion Groups
Digital Photography
Digital PhotoDSLR CamerasZLR CamerasPoint & Shoot Cameras
Film Photography
35 mmLarge FormatMedium formatDarkroomFilm and LabsOther Equipment
Photo Technique
Nature PhotographyPeople PhotographyTechnique General
General Photo Topics
General TopicsAustralian PhotographyUK Photography
DirectoryPhoto Clubs

Photo Forum / Film Photography / Large Format / December 2005

Tip: Looking for answers? Try searching our database.

Refocusable digial images

Thread view: 
Enable EMail Alerts  Start New Thread
Thread rating: 
Todd Maurer - 23 Nov 2005 13:29 GMT
Remember the days when 35mm photographers said they'd never go digital
because the resolution digital images wasn't high enough?

Remember the days when point and shoot moms said they weren't going digital
because shutter delay made it hard to capture kids smiles?

Remember the more recent days when medium format photographers said they
weren't going digital because the resolution wasn't high enough?

Then there is today, where we large largeformat photographers say we're not
switching because we can't tilt the plane of focus?  Well digital might be
working on a solution to that problem as well...

http://www.wired.com/news/technology/0,1282,69594,00.html?tw=rss.TOP

The link above describes technology that allows digital photographs to be
refocused after the exposure is made.  All that's missing is that ability to
change the angle of the plane or to refocus a specific area of a photograph.

Of course what's not mentioned is the limitation of this technology are and
what the storage requirements are.  However I want my Photoshop plug-in for
these features NOW!.

Todd
www.konabear.com
Signature

See fine art photography at: www.konabear.com 

Chris Hutcheson - 23 Nov 2005 13:41 GMT
There was a blurb on this on the Discovery Channel (here in Canada) about a
week ago - it sounds interesting.

ON the storage requirements note - I recently ordered a Nikon D200 to
replace my D100. While the dealer was unable to cut me the usual deal on the
camera, he is going to do something for me on memory - as he said, "you'll
need it" I'm particularly looking forward to using Aperture with it.

Has anyone used the Cambo (I think) large format specifically designed to
work with a digital  35mm (have I got that right?) - any comments about
that?

Cheers
Chris

On 11.23.05 8:29 AM, in article Y8_gf.878$fO5.91@newssvr33.news.prodigy.com,

> Remember the days when 35mm photographers said they'd never go digital
> because the resolution digital images wasn't high enough?
[quoted text clipped - 21 lines]
> Todd
> www.konabear.com
Nicholas O. Lindan - 23 Nov 2005 21:05 GMT
> http://www.wired.com/news/technology/0,1282,69594,00.html?tw=rss.TOP
>
> The link above describes technology that allows digital photographs to be
> refocused after the exposure is made.

Depth of field miracles have been around since the
creation of the first convex lens and so seem
to have much in common with the trisection of the angle.

Oh, well.  A realized, and seeming for real, technique:

http://www.cdm-optics.com/site/

I posted info on CDM's wavefront technique a while
ago and it got the "been there, seen it, won't work"
response from someone who couldn't&|wouldn't&|didn't
read&|understand the article.  So I should keep my yap
shut about Ng's work: "Best stay mute and be reckoned
a fool than to speak and remove all doubt."

CDM's name for the technology 'Wavefront Techniques' is a bit
over the top -- _All_ optics use 'wavefront techniques'.
What is next: "TransPanoInter Imaging has harnessed the
power of Photons traveling at the speed of light to..."

However depth-of-field is accomplished, I agree with Todd
that digital has a lot of tricks up its sleeve and
it may come to Tri-X == Daguerreotype plate.

--
Nicholas O. Lindan, Cleveland, Ohio
Consulting Engineer:  Electronics; Informatics; Photonics.
To reply, remove spaces: n o lindan at ix  . netcom . com
Fstop timer -  http://www.nolindan.com/da/fstop/index.htm
Todd Maurer - 23 Nov 2005 21:21 GMT
Nick,

It must be X-mas, someone actually agreed with me here! ;)

Todd
www.konabear.com

Signature

See fine art photography at: www.konabear.com

>
>> http://www.wired.com/news/technology/0,1282,69594,00.html?tw=rss.TOP
[quoted text clipped - 31 lines]
> To reply, remove spaces: n o lindan at ix  . netcom . com
> Fstop timer -  http://www.nolindan.com/da/fstop/index.htm
Mark McGilvray - 25 Nov 2005 23:17 GMT
> Nick,
>
> It must be X-mas, someone actually agreed with me here! ;)

Ha! Actually, the day after Thanksgiving. Some amazing technologies are
emerging. The only question is, will I be alive when it is affordable? Clue,
a $30k digital back is not within my current budget parameters.
wilt - 24 Nov 2005 14:26 GMT
<< However I want my Photoshop plug-in for these features NOW!. <<

You seem to have missed the statement in the article "The mini lenses
measure all the rays of incoming light and their directions of origin.
The software later adds up the rays, according to how the picture is
being refocused."

The problem with digital sensors today being able to cope with the
tilts possible with large format cameras, where the plane of focus is
altered so more of the subject falls parallel to the plane of focus, is
the same problem that affects superwide angle lensee on larger
sensor...angle the light hits the sensor relatively.  So the invention
fixes that problem by the microlenses that correct the angle of
incidence of the light rays.  It isn't merely software!
Giordy - 25 Nov 2005 18:26 GMT
That camera has an effective resolution of 90,000 pixels (0.09MP).
Before they are able to increase it to whatever is the equivalent
resolution of large format (hundreds of MP?) it will be a while. I
think that more advanced autofocus systems will make this invention
unprofitable long before that.
seog - 09 Dec 2005 20:08 GMT
> http://www.wired.com/news/technology/0,1282,69594,00.html?tw=rss.TOP
>
> The link above describes technology that allows digital photographs to be
> refocused after the exposure is made.  All that's missing is that ability
> to change the angle of the plane or to refocus a specific area of a
> photograph.

Don't they have perspective control software now?
Gordon Moat - 09 Dec 2005 21:36 GMT
>>http://www.wired.com/news/technology/0,1282,69594,00.html?tw=rss.TOP
>>
[quoted text clipped - 4 lines]
>
> Don't they have perspective control software now?

Nothing that would allow setting up in front of a mirror, and not having
yourself in the image, while still maintaining relationships of parallel
edges. Of course, you could just erase yourself later in PhotoShop, but
why give yourself so much work when you can get it right in camera.

Ciao!

Gordon Moat
A G Studio
<http://www.allgstudio.com>
Tom Phillips - 09 Dec 2005 22:39 GMT
> > http://www.wired.com/news/technology/0,1282,69594,00.html?tw=rss.TOP
> >
> > The link above describes technology that allows digital photographs to be
> > refocused after the exposure is made.  All that's missing is that ability
> > to change the angle of the plane or to refocus a specific area of a
> > photograph.

Doesn't sound like refocusing to me, which optically
would seem impossible after an exposure has been made.
Of course digital sensors doesn't make exposures per se,
they collect signal data (data scans.) While data can
be manipulated in any number of ways, it's not a true
optical adjustment or even an optical image. So the
term "refocusing" is a misnomer. If I read the (not too
detailed) article right it sounds more like additional
data collection which software then uses as needed to
interpolate a sharper image (because you have more data
available) from the original unfocused one.

Technology for lazy people...as the article says the
inventor "ran out of patience" having to focus his
camera before taking a picture. Poor guy...
 
Sign In
Join
My Latest Posts
My Monitored Threads
My Blog
My Photo Gallery
My Profile
My Homepage

Start New Thread
Enable EMail Alerts
Rate this Thread



©2008 Advenet LLC   Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.