Reading the histogram correctly at

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds

Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.

Thread Tools Search this Thread
Old February 14th, 2008, 08:16 PM   #1
Join Date: Nov 2006
Location: Honolulu, HI
Posts: 1,417
Reading the histogram correctly

When I first got my EX1 I assumed that when reading the histogram, far left is black, and far right is white. I thought that if the video level touches the right edge of the histogram box, I'm at 100%. Wrong! Notice that when you close the iris, the indicator doesn't touch the left edge. There is a small gap. Likewise, 100% level is equidistant on the right side. Turning on the multi colorbars and observing your levels will confirm this. If your level touches the right edge, you're at 108%. Don't make my mistake of thinking that touching the right edge is 100%.
Warren Kawamoto is offline   Reply With Quote
Old February 15th, 2008, 02:54 AM   #2
Inner Circle
Join Date: Aug 2006
Location: Poland
Posts: 4,079
I've been wondering why Sony didn't implement in the EX1' s histogram the nice little aid as present on the V1: when you have zebra set to say 100%, there is an additional threshold (brown vertical line) before the RH end of the histogram, at exactly 100%. It is a sort of redundat check, but helps a lot...
Sony PXW-FS7 | DaVinci Resolve Studio; Magix Vegas Pro; i7-5960X CPU; 64 GB RAM; 2x GTX 1080 8GB GPU; Decklink 4K Extreme 12G; 4x 3TB WD Black in RAID 0; 1TB M.2 NVMe cache drive
Piotr Wozniacki is online now   Reply With Quote
Old February 15th, 2008, 03:17 AM   #3
Join Date: Nov 2005
Location: Sydney Australia
Posts: 1,570
there's technically no reason not to go to 108%. Of course anything there is clipped, with a capital "C".

The big trap with histograms is they don't show clearly how clipped you are. The trick seems to me to be to start off underexposed and wind the exposure up while watching the readout. Then you'll see how much of the frame is moving into that vertical line on the RH side as it's being clipped. You need to look at that in conjunction with the image to judge how much and what you can tolerate being clipped.
Bob Grant is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 10:30 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network