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#11
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If you are going to use it to "check your prints" ...
LOOSE the florescent! |
#12
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If you are going to use it to "check your prints" ...
LOOSE the florescent! |
#14
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lid wrote: Gary Eickmeier wrote: OK, so I got this Ott Light, a portable desk lamp with a daylight balanced fluorescent bulb, in order to check my prints and compare them to the monitor. But the light seems a little green to my sore eyes, so I am wondering how I can measure the color temp of it to be sure of what I am looking at. This doesn't make sense with a fluorescent. What you really need to know is the colour rendering index, or CRI, and to measure that you need a spectrophotometer. According to a web site I'm looking at, the Ott-Lites come in two kinds, the Task bulb and the True Color bulb. The former has a CRI of 83, which is useless for your purpose. The latter has a CRI of about 93, which is more like what you need for photos. So which kind of bulb do you have? Good question! The lamp is at http://staples.com/Catalog/Browse/sk...+Tab le+Lamps but it doesn't tell which bulb it is. Gary Eickmeier |
#15
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RSD99 wrote: If you are going to use it to "check your prints" ... LOOSE the florescent! What do you mean, "loose" it? Like let it loose? Gary Eickmeier |
#16
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RSD99 wrote: If you are going to use it to "check your prints" ... LOOSE the florescent! What do you mean, "loose" it? Like let it loose? Gary Eickmeier |
#17
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wrote: This is not intended as a recommendation for this company, but the following link is on topic and worth a read.. http://www.soluxtli.com/Ott_lite.htm In summary, daylight is not equal, by a longshot, to any fluoro and you should expect some problems.. Very illuminating! But the other company's lights are really weird. Would they make a bulb that would work in the Ott? Gary Eickmeier |
#18
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wrote: This is not intended as a recommendation for this company, but the following link is on topic and worth a read.. http://www.soluxtli.com/Ott_lite.htm In summary, daylight is not equal, by a longshot, to any fluoro and you should expect some problems.. Very illuminating! But the other company's lights are really weird. Would they make a bulb that would work in the Ott? Gary Eickmeier |
#19
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Gary Eickmeier wrote: lid wrote: Gary Eickmeier wrote: OK, so I got this Ott Light, a portable desk lamp with a daylight balanced fluorescent bulb, in order to check my prints and compare them to the monitor. But the light seems a little green to my sore eyes, so I am wondering how I can measure the color temp of it to be sure of what I am looking at. This doesn't make sense with a fluorescent. What you really need to know is the colour rendering index, or CRI, and to measure that you need a spectrophotometer. According to a web site I'm looking at, the Ott-Lites come in two kinds, the Task bulb and the True Color bulb. The former has a CRI of 83, which is useless for your purpose. The latter has a CRI of about 93, which is more like what you need for photos. So which kind of bulb do you have? Good question! The lamp is at http://staples.com/Catalog/Browse/sk...+Tab le+Lamps but it doesn't tell which bulb it is. Gary Eickmeier You can probably tell if you have the CRI 83 or the CRI 93 by taking a picture of a Kodak Gray card illuminated ONLY by the Ott Light. Look at the image in Photoshop. If the RGB values are pretty close to each other (+/- 5 units), you have the CRI 93. If the G value is way out of line with R&B, you have the CRI 83 Bob Williams |
#20
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Gary Eickmeier wrote:
lid wrote: Gary Eickmeier wrote: OK, so I got this Ott Light, a portable desk lamp with a daylight balanced fluorescent bulb, in order to check my prints and compare them to the monitor. According to a web site I'm looking at, the Ott-Lites come in two kinds, the Task bulb and the True Color bulb. The former has a CRI of 83, which is useless for your purpose. The latter has a CRI of about 93, which is more like what you need for photos. So which kind of bulb do you have? Good question! The lamp is at http://staples.com/Catalog/Browse/sk...+Tab le+Lamps but it doesn't tell which bulb it is. I think, Gary, that if it don't _say_ True Color, then it probably ain't. The good news is that you can probably replace the tube. Andrew. |
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