Return to the CurtPalme.com main site CurtPalme.com Home Theater Forum
A forum with a sense of fun and community for Home Theater enthusiasts!
Products for Sale ] [ FAQ: Hooking it all up ] [ CRT Primer/FAQ ] [ Best/Worst CRT Projectors List ] [ Setup Tips & Manuals ] [ Advanced Procedures ] [ Newsletters ]

 
Forum FAQForum FAQ   SearchSearch   MemberlistMemberlist  Photo AlbumsPhoto Albums  RegisterRegister 
 MembershipClub Membership   ProfileProfile   Private MessagesPrivate Messages   Log inLog in 
Blu-ray disc release list and must-have titles. Buy the latest and best Blu-ray titles to show off in your home theater!

Gray scale adjustment with or without gamma correction

 
Post new topic   Reply to topic   Printer-friendly view    CurtPalme.com Forum Index -> Audio & Video Calibration
View previous topic :: View next topic  
Author Message
picree




Joined: 31 Mar 2006
Posts: 351
Location: Johnson City, TN


PostLink    Posted: Fri Jun 06, 2008 7:26 pm    Post subject: Gray scale adjustment with or without gamma correction Reply with quote


        Register to remove this ad. It's free!
This may be an easy to answer question but if we have some sort of gamma adjustment applied to our source (tse box, or a moome, or a HTPC) should we be adjusting gray scale with that component in or out of the loop and why? I know that we should be calibrating what we will actually be watching but when we throw up a "10 IRE" image it is really something like 14 IRE with good gamma correction. Should we "flatline" our input gamma when doing calibrations or setting up our projectors? Wouldn't this mess the up some of the calculations in software like HCFR? Confused Confused

_________________
MAIN THEATER: (JVC RS2000; Yamaha UDP-LX500; Yamaha RX-V2400; Lumagen Radiance Pro, Vertex)

SECOND WII-ATER: (BG808; WII; Oppo 971H; Moome external box; BG-DVI transcoder; tse gamma box; Extron)
Back to top
View user's photo album (30 photos)
dropzone7




Joined: 12 Jun 2007
Posts: 1069
Location: Charlotte, NC


PostLink    Posted: Fri Jun 06, 2008 8:11 pm    Post subject: Reply with quote

According to Kal's guide you should at least do your first set of reading with the gamma OFF. Turn it all the way down to get a more accurate set of readings for your baseline. Part of your readings will be a gamma graph which will show you if you need a gamma boost or not and if so, how much. Get the greyscale down first and then apply the gamma boost. I get the impression that it's a very iterative process and may require some adjustments being done over again, after you add the gamma back into the equation.
_________________
"Coffee is for Closers."
Back to top
kal
Forum Administrator



Joined: 06 Mar 2006
Posts: 17850
Location: Ottawa, Canada

TV/Projector: JVC DLA-NZ7


PostLink    Posted: Sun Jun 08, 2008 12:21 am    Post subject: Reply with quote

Definitely adjust with gamma on.

Kal

_________________

Support our site by using our affiliate links. We thank you!
My basement/HT/bar/brewery build 2.0
Back to top
View user's photo album (18 photos)
Display posts from previous:   
Post new topic   Reply to topic   Printer-friendly view    CurtPalme.com Forum Index -> Audio & Video Calibration All times are GMT
Page 1 of 1
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum