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I decided to start this thread so owners of the EPSON 6500UB & 7500UB projectors could have a place to post the results of tweaks and calibration settings that they have made. Please use this thread for this purpose only!!!

The owners threads are the place to post other issues and ask questions.


In fairness to work done by professional calibrators please do not post the settings without permission.


Thanks to everyone who has contributed to this thread especially Dan who has posted a great calibration guide, check list & notes:

http://www.avsforum.com/avs-vb/showthread.php?t=1134710


Check List

http://www.avsforum.com/avs-vb/showt...4#post16193384


Calibration Notes:

http://www.avsforum.com/avs-vb/showt...3#post16198023
 

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Here's the baseline. Natural mode OOB, best mode to start calibrating from (says the manual). Too bad Epson has provided only rudimentary tools for RGB balance adjustment.

 

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Starting from Natural color mode, it took me less than half an hour to tweak RGB balance to this. The manual claims that when tweaking RGB, Offset affects dark areas and Gain affects bright areas. Not so: gain affects the entire 0-100 while offset affects 0-40. Red takes a nasty tumble at 100 and atm I can't see how to fix that. Also, I haven't touched RGBCMY at all, so the gamuts are what they are. I measured gamut at 100% and 75% stimulus levels, simply to see if there's a wild difference.

 

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Quote:
Originally Posted by jmalto /forum/post/15412889


Great thread, this helped me with my 1080ub when I had it. Can you post the numbers you inputed into the projector, much how Art did his in the review?

They're in the image, those are the Offset and Gain values I used to achieve that RGB tracking.
 

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Quote:
Originally Posted by pteittinen /forum/post/15412897


They're in the image, those are the Offset and Gain values I used to achieve that RGB tracking.

Sorry, IE didn't display the images correctly, Firefox solved that problem
Thanks and great job on the initial calibration.
 

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Quote:
Originally Posted by pteittinen /forum/post/15412840


Starting from Natural color mode, it took me less than half an hour to tweak RGB balance to this. The manual claims that when tweaking RGB, Offset affects dark areas and Gain affects bright areas. Not so: gain affects the entire 0-100 while offset affects 0-40. Red takes a nasty tumble at 100 and atm I can't see how to fix that. Also, I haven't touched RGBCMY at all, so the gamuts are what they are. I measured gamut at 100% and 75% stimulus levels, simply to see if there's a wild difference.



It might be the projector is just running out of red, that happened to my Optoma H78DC3.

In that projector you had to lower the red until the tumble dissapeared and it tracked fine.

Then you had to lower the other colors to match the red level.

You loose a little brightness but you obtain a good RGB tracking
 

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Discussion Starter · #10 ·
Thanks for the above post. If any of you with be at the CES show Calman will be running a demonstration at get together at the Fiesta Hotel in Henderson on Saturday night at 7:00Pm. Give them a call for details. It seems that a number of AVS members will be present.
 

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pteittinen


Thanks for putting up your calibration results. For us newbies who do not possess any calibration software or tools, this helps a lot!
 

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Enclosed are my calibration settings based on Greyscale adjustment using Color HCFR and an Eye-One Display LT. I have not done any primary or secondary color checkings. Note, absolutely no other modifications to color settings (like saturation, tint, skin tone, etc.,) have been made from when the projector arrived since my still evolving understanding is that the better way to adjust for a pj that has independent "offset" and "gain" adjustments for R, G, B, and also the ability to adjust primaries, is to do it in those menus, which I have recently purchased an Eye-One Display LT to do so... Measurements taken from the screen, a 1.16 gain SMX / Sheerweave 4500 Acoustic Transparent screen. I have just added my ColorHCFR output files. The filenames for these files match up with the excel listing of my adjustments. Basicly, I took before and after file saves from Color HCFR for Living Room, Natural, and TB1 in high lamp mode, and for TB1 in low lamp mode as well. In the future I might use Living Room in low lamp mode also and give that a whirl. Right now, I watch movies in TB1 low lamp or inceasingly, in TB High lamp. When I am just in and out of the room and watching sports or bcast tv I might run in Natural High. When I want to have some modest ambient light on for a party, or my adjacent LCD for a second ball game, I run in Living Room High. The irony is that when I am in Living Room high it is so darn bright in my confined room (tan floor and light tan cove ceiling...dark bronze side walls all the around) of 15' x 18' that I don't need ambient light :) To see my room, look at the first two pics of this link http://www.seymourav.com/installsfixed.asp Room is completely light controlled (powered retractable skylight, etc.) and can be a bat cave, other than the lighter carpet color and higher cove ceiling color than what a bat cave purist would want. hence, i think at a certain level of brightness I start getting enough reflection from the PJ on the carpet and the upper cove ceiling that I have nearly reached my point of diminishing returns on contrast benefits...



Would be fun for someone who has AVS do their calibration to share their results.


Notes:


All measurements taken with Auto-Iris "On"


delta E on Living Room prior to calibration ran 23 +/-1 from IRE 30-90. delta E on Living Room after calibration ran 1.8-2.5 from IRE 30-70 and 4.0 at 80.


delta E in TB1 Low Lamp prior to calibration ran 0.7 to 6.4 from IRE 20-100 (which is quite good and challenges the need to calibrate given the bulb will change in the first 60 hours). After calibration my settings yield 0.4 to 2.7 from IRE 30-80 and up to 4.8 if you add IRE 20 and 90, and 5.4 at IRE 100


delta E in TB1 High Lamp (now my favorite viewing mode for movies) prior to calibration ran 7.0-8.6 from IRE 30 - 100, and 11.3 at IRE 20. After calibration it was 0.9 - 2.4 from IRE 30-100 and 5.4 at IRE 20.

 

Epson 6500 UB Calibration Settings.zip 6.65625k . file

 

ColorHCFR Files.zip 28.6875k . file
 

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Dave:


Pardon my newbie question on the test equipment, but how do you utilize/secure the metering device (eye) for the screen, since it is supposed to be used on glass surfaces ? I know they are primarily for use on glass devices.


Thanks
 

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Quote:
Originally Posted by jmalto /forum/post/15431988


Neekos - There is a calibration dummies guide that explains and shows methods. The best way is to tape the device to a tripod and you sit it directly in front of the screen as center as possible.

Perhaps you have a link?
 

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Quote:
Originally Posted by pteittinen /forum/post/15412840


I measured gamut at 100% and 75% stimulus levels, simply to see if there's a wild difference.

CIE Gamut 100% and 75% look nearly identical. Are you using AVSHD calibration disc? I suspect the chapter 75% Colors in AVSHD is actually 100% colors. Try Primary sat and Secondary sat chapters if they give a different result. There you find (correct) 0%, 25%, 50%, 75% and 100% colors.
 

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Quote:
Originally Posted by northrob /forum/post/15437165


CIE Gamut 100% and 75% look nearly identical. Are you using AVSHD calibration disc? I suspect the chapter 75% Colors in AVSHD is actually 100% colors.

Yes, AVSHD disc. I'm fairly certain they're not the same. In CalMAN the user has to manually select whether primaries and secondaries are measured with 75% or 100%, and swapping between the two after measuring creates a noticeable change in some of the graphs.
 
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