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416ray4538
Joined: 14 Jul 2009
Posts: 334
Location: near Toronto Ont
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 Link Posted: Sat Mar 10, 2012 3:28 pm Post subject: Grey scale |
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I've heard that I can get a colour value from a Canon Rebel camera.
Could someone tell me how?
Thanks
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kal
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| Link Posted: Sat Mar 10, 2012 8:39 pm Post subject: |
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I'm not sure what you're referring to or what you mean. Can you provide more information? Links? Where did you hear this?
Kal
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416ray4538
Joined: 14 Jul 2009
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Location: near Toronto Ont
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| Link Posted: Sat Mar 10, 2012 8:49 pm Post subject: |
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I'd be guessing as to where I heard this. I'm hoping to find someone both familiar with these cameras and the procedure. I appreciate that if you look at something very long you get used to it so eyeballing adjustments is pointless.
I just replaced a picture tube and eventually I get to start at the beginning of setup so I thought I'd do some homework. Money is a little tight at the moment so buying test gear is not an option. My daughter has a Canon Rebel that was bought for her college course but she doesn't know how to get these readouts.
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kal
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| Link Posted: Sat Mar 10, 2012 9:21 pm Post subject: |
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I've very familiar with digital SLRs including the Rebel.
I'm not familiar with how you could use one as a meter to measure xyY.
Kal
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416ray4538
Joined: 14 Jul 2009
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| Link Posted: Sat Mar 10, 2012 9:25 pm Post subject: |
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Well I've misunderstood something I read then. Sorry and thanks.
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CasetheCorvetteman
Joined: 09 Nov 2008
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Location: QLD, Australia
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| Link Posted: Sun Mar 11, 2012 3:09 am Post subject: |
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Couldnt you take a photo and then load it onto the computer and use some Adobe software to look at the colour values?
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garyfritz
Joined: 08 Apr 2006
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Location: Fort Collins, CO
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kal
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| Link Posted: Sun Mar 11, 2012 2:46 pm Post subject: |
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| CasetheCorvetteman wrote: | | Couldnt you take a photo and then load it onto the computer and use some Adobe software to look at the colour values? |
Normally when you calibrate you take continuous readings (every second or two) and make adjustments. What would normally take a few hours would take WEEKS if you had to take a photo, load it onto the computer, view the values.
I'd spend $50-100 on a simple colorimeter.
Kal
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416ray4538
Joined: 14 Jul 2009
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Location: near Toronto Ont
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| Link Posted: Sun Mar 11, 2012 7:15 pm Post subject: |
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Thanks for clearing that up. I'll ask Santa for a colorimeter.
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CasetheCorvetteman
Joined: 09 Nov 2008
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| Link Posted: Mon Mar 12, 2012 4:39 am Post subject: |
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| kal wrote: | | CasetheCorvetteman wrote: | | Couldnt you take a photo and then load it onto the computer and use some Adobe software to look at the colour values? |
Normally when you calibrate you take continuous readings (every second or two) and make adjustments. What would normally take a few hours would take WEEKS if you had to take a photo, load it onto the computer, view the values.
I'd spend $50-100 on a simple colorimeter.
Kal |
So would i Kal, but that wasnt the question!! 
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416ray4538
Joined: 14 Jul 2009
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Location: near Toronto Ont
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| Link Posted: Sun Apr 29, 2012 10:05 pm Post subject: |
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What colorimeter will you sell me at the top of that range.
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kal
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| Link Posted: Sun Apr 29, 2012 10:28 pm Post subject: |
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| 416ray4538 wrote: | | What colorimeter will you sell me at the top of that range. |
See: http://www.curtpalme.com/forum/viewtopic.php?t=11436
We don't sell any other meters in that range. Not worth it IMHO.
I was simply pointing out that I'd use a $50-100 colorimeter any day over something like a digital camera that would probably take you 4 hours to calibrate instead of 20 minutes.
Kal
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