Arri DR Test...

[Gavin Greenwalt]

Target spec for Monstro is 2 stops more DR than M-X.

Jim

Sweet Bajeezus.

[Leif Thomas]

I''m asking myself why should an ARRI DR test that sold by ARRI and called the DRTC (Dynamic Range Test Chart)

be relevant to any sort of sensor DYNAMIC RANGE TEST.

It's just a commercial product that ARRI consider is good to have because they want to build ARRI brand name as a sort of leader

in acquiring, post-producing and even testing new digital sensors.

It looks like a carefully designed to be as a pure "trap" and I would no recommend that RED or any other competitive

digital sensor/camera maker should fall in this technologically "foolish" game.

My recommendation is just to get out of this way.

Air is a much fresher on the other side of this door.

On the another language speaking those tests are considered as a pot of strange tricks.

It sound like this:

Hey, you are competing with me but listen, only I have an "instrument" that tells exactly how you are "good"

or another word "only I can say how you are doing or even if you are able to mach close to me".

All that sounds as a good pre-text for a Hollywood comedy!!!

I don't see any smilies on that post so I'm wondering - are you serious?!

[Martin Stevens]

Target spec for Monstro is 2 stops more DR than M-X.

Jim

Thank you Jim!

[Leif Thomas]

Michael... I'm a bit confused. In this Arri spec on the website, The Alexa was shown to have 12.1 stops of DR from the DRTC test.



Now... it is shown to have 13.5 stops. What changed? The sensor or the methodology of the test?

Jim

I quote Hans Kiening from the Arri Digital forum:
http://www.arridigital.com/forum/ind...pic,440.0.html

Quote from: Irri on March 11, 2010, 09:07:06 PM:
"I just noticed that the the Alev III sensor is quoted as having 12.1 stops of dynamic range here http://arridigital.com/teaser/sensitivity"

Quote from: Hans on March 11, 2010, 11:33:25 PM:
"Good point !
This was the rev A Status at IBC 2009 the final sensor provides more dynamic (13.5) and better snr than Rev A.
Thanks for the hint - we will remove it from the web !"

[Sanjin Jukic]

I don't see any smilies on that post so I'm wondering - are you serious?!

Need smiles:

Here they are



Also don't forget that high ISO/ASA or 12+ DR or 13+ DR are important things in a digital acquisition

but not the most important.

A camera that can have all that and plus 'stock looks spinning' possibilities at the and it can count as a WINNER.

Just wait till NAB and have a look there and AFTER.

Today a lot of digital acquisition systems could claim a high ISO/ASA (800) and DR but the image look is only that will count the most.

Get all 13 or even more film stock looks (Kodak and Fuji with or without grain applied) on your RAW image IN CAMERA (LOOK) and then you are just as a SAFE.



FILM ACQUISITION IS "MAYBE" GONNA DIE SOONER OR LATER

BUT THE FILM (STOCKS) LOOK IS NOT DEAD AT ALL,

IT WILL BE JUST "REPLACED" WITH A DIGITAL.

[Martin Stevens]

The only problem I see with the "Arri DRTC" is that it has too narrow
a test range. If 35mm Film can have more than 14 Stops of DR,
then I would like to see Arri, but preferably Red, create a DRTC
that can reveal 20 Stops, this way people can also use it to test
different film emulsions and the Monstro when it comes out.


Also, when the Monstro delivers 15.5 Stops of DR........I will
be more than blown away. I will be elated!

[Michael Bravin]

Michael... I'm a bit confused. In this Arri spec on the website, The Alexa was shown to have 12.1 stops of DR from the DRTC test.



Now... it is shown to have 13.5 stops. What changed? The sensor or the methodology of the test?

Jim

Jim
No change in methodology. Early sensor testing vs soon to be finished camera system testing. ALEXA's arriving soon. Your teasing me right?

[Jannard]

Jim
No change in methodology. Early sensor testing vs soon to be finished camera system testing. ALEXA's arriving soon. Your teasing me right?

We certainly understand improving through the process. :-)

Jim

[Frank Weeks]

Target spec for Monstro is 2 stops more DR than M-X.

Jim

15 1/2 stops. Wow
Just out of curiosity, what is the human eye rated at?

[Jannard]

15 1/2 stops. Wow
Just out of curiosity, what is the human eye rated at?

We still have a long way to go... limits are everywhere, including displays.

Jim