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IWETHEY Home / IWETHEY Board / Epicuria and Health Forum / Those seem a bit erratic . . .
Post #340,903
by Andrew Grygus
Picture of Andrew Grygus
3/26/11 10:50:33 AM
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New Those seem a bit erratic . . .
. . and temperature sensitive. The florescents I bought are specifically for photography and have a very stable color temperature.

Three 45w curly florescents give me 1500W incandescent equivalent, which is pretty good for my uses. 65W and 85W versions are available should I need them.

Color temperature of 5500° seems to work just fine. Strangely, while it looks very good with almost no correction needed on both tube monitor or flat screen, it looks terrible on the camera's own screen.
Post #340,912
by drook
Picture of drook
3/26/11 1:19:42 PM
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New Yeah, you learn to just trust the CFLs
Stuff looks "unnatural" to the naked eye at first. Too bluish. But much better on-screen.
--

Drew
Post #340,949
by crazy
3/28/11 7:03:41 AM
Reply
New Not sure what you mean by that
Those bulbs were created to retrofit factory floor HPS lighting so they have a very specific ballast that runs them. But the ballast is common and cheap. They are intended for a variety of harsh environments. I have a portable one, not light, but portable.

It takes about 5 minutes to warm up fully, and then the light of a single 250 watt bulb will easily outshine 1000 watts of incandescent, and do it just like the sun. Without getting that hot, at least as compared to any other HID bulb.

If possible, visit a store with a couple burning and take a few pictures. The difference will be obvious. Especially for any pictures that have any depth, since the light will shine far deeper than any florescent.
Post #340,957
by drook
Picture of drook
3/28/11 9:36:28 AM
Reply
New Depth is usually not an issue
Most of my shots are taken within two feet of the subject. "Hero" shots are typically less than a foot. The lights are usually about three feet for the overhead and a foot or less for the backlight, which I sometimes bounce for front fill.
--

Drew
Post #340,972
by Andrew Grygus
Picture of Andrew Grygus
3/28/11 12:52:12 PM
Reply
New A 5 minute wait for a bulb to stabilize?
Sorry, that just doesn't fit my lifestyle.

Also, literature on those bulbs says the color temperature varies noticeably with ambient temperature, warm up time and from bulb to bulb. Great for factory floor lighting I'm sure, but not quite right for my application.
     Finally got some real lighting for my photos. - (Andrew Grygus) - (16) - March 24, 2011, 11:16:48 PM EDT
         The problem now - (drook) - (15) - March 25, 2011, 05:22:30 AM EDT
             Let's see - (jake123) - (4) - March 25, 2011, 08:40:48 AM EDT
                 Have you been to his site lately? - (drook) - (3) - March 25, 2011, 09:19:21 AM EDT
                     shitload would be accurate -NT - (boxley) - (2) - March 25, 2011, 09:22:10 AM EDT
                         Metric or Imperial? -NT - (drook) - (1) - March 25, 2011, 09:30:46 AM EDT
                             Re: Metric or Imperial? - (beepster) - March 25, 2011, 10:32:53 AM EDT
             Well, that happens every time I get a new camera . . . - (Andrew Grygus) - (9) - March 25, 2011, 10:48:53 AM EDT
                 If the camera doesn't have good white balance settings ... - (drook) - (2) - March 25, 2011, 11:06:20 AM EDT
                     White ballance hasn't been a problem. - (Andrew Grygus) - (1) - March 25, 2011, 12:17:14 PM EDT
                         Is there such a thing as a variable-°K light source? - (Ashton) - March 26, 2011, 01:42:55 AM EDT
                 Have you tried any other lighting types? - (crazy) - (5) - March 26, 2011, 08:03:59 AM EDT
                     Those seem a bit erratic . . . - (Andrew Grygus) - (4) - March 26, 2011, 10:50:33 AM EDT
                         Yeah, you learn to just trust the CFLs - (drook) - March 26, 2011, 01:19:42 PM EDT
                         Not sure what you mean by that - (crazy) - (2) - March 28, 2011, 07:03:41 AM EDT
                             Depth is usually not an issue - (drook) - March 28, 2011, 09:36:28 AM EDT
                             A 5 minute wait for a bulb to stabilize? - (Andrew Grygus) - March 28, 2011, 12:52:12 PM EDT

A:>_
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