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11/21/2005 12:36:42 PM · #1 |
Has anyone made one? If so, how and does it work? Ever compared it to a 'purchased' target?
I was wondering. This weekend I printed one on flat paper and mounted it on adhesive board to make it stiff. I then shot and used this as the custom white balance image. The difference between the non custom shot and all things exactly the same - light, camera settings, etc. - and the custom shot is like night and day.
Should I trust what I see or would this be a fluke? I can't post examples yet, but can in a week.
Print: placed one table with no borders to exact 8.5x11 size with one column and three equal rows to fill the page. Top to bottom black 100%, center 20% gray (could not get 18) and bottom no ink (did use high quality paper though, forget the rating, but is white). This assuming the paper is in portrait orientation.
Message edited by author 2005-11-21 13:40:54. |
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11/21/2005 01:28:38 PM · #2 |
would you care to post what you printed so that I can see what you printed? White balance is usually an issue for me, something I need to work on. Thanks
MattO |
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11/21/2005 01:38:17 PM · #3 |
You mean the actual 'target'? An 8.5 x 11 inch page printed to look like this:
Only no words.
Message edited by author 2005-11-21 13:53:59. |
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11/21/2005 01:44:54 PM · #4 |
The problem with home made is that each paper is differnt, some have whiteners, and the 'brightness' factors rang from 94 or so to 108, so white is NOT white - just put them next to each other and you'll see the difference - it can be huge! Some of the chemicals can floureesce (glow) under certain lighting.
You can WB with any color, each color giving a different effect. As in use blue, or green, etc.
The Kodak target i have is white on one side and 18% gray on the other. I got mine off ebay for $5. I have heard good and bad about the exposdisc.
You can always shoot RAW - and balance later!
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11/21/2005 01:53:15 PM · #5 |
| I thought I had stated I used high quality paper. We have color/light calibrators here in the lab we use for the film we make ourselves. We also have 'target' papers that go into the back of one of the light chambers I use for calibrations - certified white, specialized paper. I used one of these sheets that one of the techs handled without gloves. No good for calibration in the chamber, but more than good for what I wanted it for. |
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