Re: jpg

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If anybody has a RED 6x17 back floating around they don’t need, I can find a use for it and probably a lens too.


On Aug 28, 2013, at 8:04 PM, Randy Little wrote:

RED RAW is a custom jpeg 2000 designed to deal with bayer pattern.  The tweak it to death.   but I bet you are right in that a lot of the Compressed RAW formats are some type of jpeg 2000 (wavelet compression) 



On Wed, Aug 28, 2013 at 3:49 PM, Rnuuja <rnuuja@xxxxxxxxxxxxxxxx> wrote:
There are true hdr displays such as: http://en.m.wikipedia.org/wiki/BrightSide_Technologies


Going back in the thread a bit, but I would be surprised if many of the so called raw formats weren't actually using either jpeg-ls or jpeg2000 under the hood...


Sent from my mobile.

On Aug 28, 2013, at 6:32 PM, Randy Little <randyslittle@xxxxxxxxx> wrote:

Oh and if you want to you bracket to death say and make an  that has 20 stops easy.   The only way to view that is to compress the value to death but you can selectivly dial in hight lights and shadows and still look not stupid gimmicky. 



On Wed, Aug 28, 2013 at 3:29 PM, Randy Little <randyslittle@xxxxxxxxx> wrote:
My leaf is 12 stops measured and confirmed by me, and 16bit ADC.  my NEX 7 not in the ball park as detailed at the leaf even with Zeiss G lenses. Its 13+stops in direct sunlight.      
 EKTAR 100 (in the movie world called Vision 3) is 15+ stops. 

Epson printers have a dmax at around 2.45 or less then even neg film.   Color gamut I have never tested as the printer forces srgb (barf) or adobeRGB.      (obviously inverted measurements from blacks to white.)   

 
On Wed, Aug 28, 2013 at 3:00 PM, Jan Faul <jan@xxxxxxxxxxx> wrote:

Those who know have told me the only digital holding more than 5 stops are the $50k chips on the Phase One, Mamiya 645 and Hassie.


On Aug 28, 2013, at 5:51 PM, photoroy6@xxxxxxx wrote:

Jan,
How many stops can film hold? (as opposed to the number of stops one can see in a print)
DXO site says the Pentax I bought in March can hold 13 stops at ISO 200> hard to believe. I have to go find some really long brightness scenes to see what is actually possible
Roy

-----Original Message-----
From: Jan Faul <jan@xxxxxxxxxxx>
To: List for Photo/Imaging Educators - Professionals - Students <photoforum@xxxxxxxxxxxxxxxxxx>
Sent: Mon, Aug 26, 2013 7:24 pm
Subject: Re: jpg


I don’t believe any camera know show to capture at quality 10 or 12. As for lossless, isn’t that what saving a RAW file is about?


On Aug 26, 2013, at 7:16 PM, PhotoRoy6@xxxxxxx wrote:

Current DSLR cameras capture in jpeg. When one has the maximum quality selected in the camera menu is the jpeg lossless? what ever happened to the other updated jpeg formats?
Roy


Art Faul

The Artist Formerly Known as Prints
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Art for Cars: art4carz.com
Stills That Move: http://www.artfaul.com
Camera Works - The Washington Post
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Art Faul

The Artist Formerly Known as Prints
------
Art for Cars: art4carz.com
Stills That Move: http://www.artfaul.com
Camera Works - The Washington Post

.






Art Faul

The Artist Formerly Known as Prints
------
Art for Cars: art4carz.com
Stills That Move: http://www.artfaul.com
Camera Works - The Washington Post

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