EX Cinegammas compared to Hypergammas at DVinfo.net

Alister Chapman · May 6th, 2009, 02:22 AM

I just got this from Sony.

PDW-700 has HyperGamma (Ver1.2 or higher) such as,

HG1 : 325% D-range is compressed to 100%
HG2 : 460% D-range is compressed to 100%
HG3 : 325% D-range is compressed to 109%
HG4 : 460% D-range is compressed to 109%

These HyperGammas are the same as HDW-F900.

PMW-EX1/EX3 has the same CineGamma as PDW-F335/355 such as,

CINE1 : Same as the HyperGamma HG4
CINE2 : Same as the HyperGamma HG2
CINE3 : Independent setting for EX1/EX3
CINE4 : Independent setting for EX1/EX3

Therefore, please use CINE1 or CINE2 if you want to use the same gamma curve as PDW-700 or HDW-F900.

Juan McFarland · May 6th, 2009, 08:53 AM

Thanks for passing that along!!

It's nice to have the hard numbers.

I always thought it strange that Sony didn't include any specific data about the Gamma settings with their literature. It's like being in 1985 and buying a computer that doesn't come with a manual!

Leonard Levy · May 6th, 2009, 10:29 AM

Thanks, great info.
Who did you get it from?

Simon Wyndham · May 6th, 2009, 04:42 PM

Alister, it is nice to have those numbers, but they don't make total sense. Surely the highest range should be around 600% compressed down to 109%? 460% says to me that the full over exposure capabilities of the 2/3" sensor are not being used.

Somehow I suspect that Digital Praxis will show this to be the case with custom curves for the PDW-800.

May 6th, 2009, 02:22 AM	#1
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	EX Cinegammas compared to Hypergammas I just got this from Sony. PDW-700 has HyperGamma (Ver1.2 or higher) such as, HG1 : 325% D-range is compressed to 100% HG2 : 460% D-range is compressed to 100% HG3 : 325% D-range is compressed to 109% HG4 : 460% D-range is compressed to 109% These HyperGammas are the same as HDW-F900. PMW-EX1/EX3 has the same CineGamma as PDW-F335/355 such as, CINE1 : Same as the HyperGamma HG4 CINE2 : Same as the HyperGamma HG2 CINE3 : Independent setting for EX1/EX3 CINE4 : Independent setting for EX1/EX3 Therefore, please use CINE1 or CINE2 if you want to use the same gamma curve as PDW-700 or HDW-F900. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

May 6th, 2009, 10:29 AM	#3
Leonard Levy Trustee Join Date: Feb 2006 Location: USA Posts: 1,684	Thanks, great info. Who did you get it from? Last edited by Leonard Levy; May 6th, 2009 at 11:08 AM.

May 6th, 2009, 08:53 AM	#2
Juan McFarland Regular Crew Join Date: Apr 2008 Location: Honolulu HI Posts: 50	Thanks for passing that along!! It's nice to have the hard numbers. I always thought it strange that Sony didn't include any specific data about the Gamma settings with their literature. It's like being in 1985 and buying a computer that doesn't come with a manual!

May 6th, 2009, 04:42 PM	#4
Simon Wyndham Trustee Join Date: Dec 2003 Location: Malvern UK Posts: 1,931	Alister, it is nice to have those numbers, but they don't make total sense. Surely the highest range should be around 600% compressed down to 109%? 460% says to me that the full over exposure capabilities of the 2/3" sensor are not being used. Somehow I suspect that Digital Praxis will show this to be the case with custom curves for the PDW-800.