New Peaking Controls at DVinfo.net

Matthew Ernest Adams · July 2nd, 2007, 10:41 PM

Anyone have any tips on how/why to use the adjustable horizontal and vertical peaking that is added to the menu with the most recent upgrade?

Richard Lesser · July 3rd, 2007, 03:13 PM

Good Question. I to hope someone can help.

Matthew Ernest Adams · July 11th, 2007, 09:34 AM

So was I. Anyone?

Quote:

Originally Posted by Richard Lesser

Good Question. I to hope someone can help.

Matthew Ernest Adams · July 21st, 2007, 10:12 AM

... to see if anyone knows about the new peaking controls. I know what they do, I am just curious at to why you'd need horizontal/vertical control?

Thierry Humeau · July 21st, 2007, 12:09 PM

Quote:

Originally Posted by Matthew Ernest Adams

Anyone have any tips on how/why to use the adjustable horizontal and vertical peaking that is added to the menu with the most recent upgrade?

Matthew,

I just left all the settings to their default values after upgrading the camera firmware and am just pleased the improvements. The biggest change I see is that the peaking adujstment is easier to control than before because it is less sensitive.

Thierry.

Grigory Volovich · July 21st, 2007, 12:18 PM

Sorry for horrific english.

Peaking operate like aperture correction.
In VF aperture correction has constant ratio between horizontal and vertical aperture correction (AC)
Horizontal AC simply raise amplitude on definite frequency, like tone correction on sound amplifier.
Vertical AC raise amplitude in line on the basis of correlation (ratio) between values of amplitude line by line.
Very similar to unsharp mask.

Main aim for use separate Horizontal and Vertical AC - take maximum thin outline (contour) or precision focus in VF.

Matthew Ernest Adams · July 22nd, 2007, 09:46 PM

Thanks for the information...I realize what the tool is used for, but what is the purpose of having such specific control other than increasing and decreasing the peaking?

Quote:

Originally Posted by Grigory Volovich

Sorry for horrific english.

Peaking operate like aperture correction.
In VF aperture correction has constant ratio between horizontal and vertical aperture correction (AC)
Horizontal AC simply raise amplitude on definite frequency, like tone correction on sound amplifier.
Vertical AC raise amplitude in line on the basis of correlation (ratio) between values of amplitude line by line.
Very similar to unsharp mask.

Main aim for use separate Horizontal and Vertical AC - take maximum thin outline (contour) or precision focus in VF.

Grigory Volovich · July 23rd, 2007, 02:19 AM

Apparently, in such a way, we make more observable very thin details. At least in theory.
At least in theory, also, you need tune up ratio between horizontal and vertical peaking and
after that gently rotate peaking on VF ( according to composition of scene ).Very funny.
In practice...In God We Trust.

July 2nd, 2007, 10:41 PM	#1
Matthew Ernest Adams Regular Crew Join Date: Aug 2006 Location: Las Vegas, NV Posts: 54	New Peaking Controls Anyone have any tips on how/why to use the adjustable horizontal and vertical peaking that is added to the menu with the most recent upgrade?

July 3rd, 2007, 03:13 PM	#2
Richard Lesser Regular Crew Join Date: Nov 2006 Location: Sherman Oaks California Posts: 31	Good Question. I to hope someone can help. __________________ Richard Lesser Producer, Cameraman, Editor F350 • FCP • Media 100

July 21st, 2007, 10:12 AM	#4
Matthew Ernest Adams Regular Crew Join Date: Aug 2006 Location: Las Vegas, NV Posts: 54	One more bump ... ... to see if anyone knows about the new peaking controls. I know what they do, I am just curious at to why you'd need horizontal/vertical control?

July 21st, 2007, 12:18 PM	#6
Grigory Volovich New Boot Join Date: Feb 2007 Location: Moscow Russia Posts: 15	Sorry for horrific english. Peaking operate like aperture correction. In VF aperture correction has constant ratio between horizontal and vertical aperture correction (AC) Horizontal AC simply raise amplitude on definite frequency, like tone correction on sound amplifier. Vertical AC raise amplitude in line on the basis of correlation (ratio) between values of amplitude line by line. Very similar to unsharp mask. Main aim for use separate Horizontal and Vertical AC - take maximum thin outline (contour) or precision focus in VF.

July 23rd, 2007, 02:19 AM	#8
Grigory Volovich New Boot Join Date: Feb 2007 Location: Moscow Russia Posts: 15	Apparently, in such a way, we make more observable very thin details. At least in theory. At least in theory, also, you need tune up ratio between horizontal and vertical peaking and after that gently rotate peaking on VF ( according to composition of scene ).Very funny. In practice...In God We Trust.