White Balance question at DVinfo.net

Andrew Leigh · November 5th, 2004, 11:35 PM

Hi,

at what point does the 10D register the WB reading when set in AWB mode. Is it when one half depresses the shutter release button to focus and expose?

Cheers
Andrew

Ken Tanaka · November 6th, 2004, 12:46 AM

Hello Andrew,
Good question. The camera adjusts for white balance after the shot is captured but before it's recorded. That is, it's part of the suite of in-camera processes that the raw sensor data undergoes on its way to becoming a JPG. RAW format processing bypasses such settings as white balance and sharpening.

Andrew Leigh · November 6th, 2004, 11:12 AM

Thanks Ken

Jeff Donald · November 6th, 2004, 01:18 PM

That's a very good question. My best guess is the measurement of the color temp is taken at the same time the exposure is determine, when the shutter button is depressed half way. However, this could possibly be changed, depending on the camera your using. Some cameras have a custom function that can change the exposure determination moment via a menu setting. I normally shoot RAW and WB can be less of a concern, over jpeg, during shooting, because of the post processing workflow Ken mentions.

November 5th, 2004, 11:35 PM	#1
Andrew Leigh Major Player Join Date: Oct 2001 Location: Johannesburg, South Africa Posts: 220	White Balance question Hi, at what point does the 10D register the WB reading when set in AWB mode. Is it when one half depresses the shutter release button to focus and expose? Cheers Andrew __________________ PAL XL-1, DV Raptor, Premiere TOTAL AMATEUR - DOING IT FOR THE FUN

November 6th, 2004, 12:46 AM	#2
Ken Tanaka Retired DV Info Net Almunus Join Date: Dec 2001 Location: Chicago, IL Posts: 6,943	Hello Andrew, Good question. The camera adjusts for white balance after the shot is captured but before it's recorded. That is, it's part of the suite of in-camera processes that the raw sensor data undergoes on its way to becoming a JPG. RAW format processing bypasses such settings as white balance and sharpening. __________________ Lady X Films: A lady with a boring wardrobe...and a global mission. Hey, you don't have enough stuff! Buy with confidence from our sponsors. Hand-picked as the best in the business...Really! See some of my work one frame at a time: www.KenTanaka.com

November 6th, 2004, 11:12 AM	#3
Andrew Leigh Major Player Join Date: Oct 2001 Location: Johannesburg, South Africa Posts: 220	Thanks Ken __________________ PAL XL-1, DV Raptor, Premiere TOTAL AMATEUR - DOING IT FOR THE FUN

November 6th, 2004, 01:18 PM	#4
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	That's a very good question. My best guess is the measurement of the color temp is taken at the same time the exposure is determine, when the shutter button is depressed half way. However, this could possibly be changed, depending on the camera your using. Some cameras have a custom function that can change the exposure determination moment via a menu setting. I normally shoot RAW and WB can be less of a concern, over jpeg, during shooting, because of the post processing workflow Ken mentions. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors