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04/27/2007 12:23:28 PM · #1 |
I have a huge green screen backdrop that I use for video. I have been thinking about using it for photography also. So lastnight I was looking at Digital Backdrops online Owens-Originals to be exact. Does anyone here have any experience with these? How do they look? Are they easy to use? I have had some great results with chroma key in videos. But have never tried it with photography. So this is a new street for me.
Any advice on the topic would be very helpful
Best digital backdrops you have used?
Best techiques??
Lighting issues???
Anything else helpful????
Thanks...
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04/27/2007 01:39:03 PM · #2 |
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04/27/2007 01:42:30 PM · #3 |
| they can work very well but lighting can be tricky depending on the subject. Pay very close attention to the light in the scene you plan to impose in the background because you'll want to match it the best you can in the foreground subject. Nothing "breaks" a photo quite like mixed up lighting. |
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04/27/2007 01:56:22 PM · #4 |
I've never tried it... but the thing that scares me is hair. Sometimes you just don't get a clean removal of a background scene even if the color doesn't match the hair at all. There are "edges" where the colors merge. In my mind ... green screen works well for video for two reasons: 1) resolution, nobody ever looks at video at the same kind of resolution as we use for prints, 2) motion, the people are always moving and so you can't focus on any individual imperfections long enough to really take notice anyway, but in print, imperfections can be glaring.
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04/27/2007 02:05:19 PM · #5 |
Even with video the hair can be a problem. I have found that if I use a directional light from behind sort of a snoot like device attached and a green gel aimed at back of the head it helps with the problem a little bit. I am probably going to buy some of these backdrop CD's and give it a try just for the challenge. I need some more options for backdrops and can not afford to buy the nice muslins right now and can not really afford to screw up anymore muslin trying to make my own. although I have made two that are pretty good I have messed up over 20 yards of material which is now going to me made into very ugly bed sheets by my wife. lol
Right now I think Lighting is going to be the major challenge and hope that there will be lots of advice to read here later today,
thanks guys...
Message edited by author 2007-04-27 14:06:02.
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04/27/2007 02:30:00 PM · #6 |
Originally posted by Bugzeye:
Even with video the hair can be a problem. I have found that if I use a directional light from behind sort of a snoot like device attached and a green gel aimed at back of the head |
I heard you use an "opposite" color gel becasue that would overcome the light spill from the green or blue screen. |
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04/27/2007 02:58:07 PM · #7 |
I have experimented with lots of different gels. Green seems to work best for me however I have used a blue gel a few times when the background video is a bright blue day time scene like a day at the beach for example...
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04/27/2007 03:09:25 PM · #8 |
 kiwiness knows a little something about this technique. He mostly uses a white backdrop in the studio (that I've seen anyway), and then uses his magical powers to do the cutouts. |
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04/27/2007 03:45:36 PM · #9 |
it is about 6:45 AM Saturday there. might have to wait ahwile for any input...
Originally posted by Pedro:
kiwiness knows a little something about this technique. He mostly uses a white backdrop in the studio (that I've seen anyway), and then uses his magical powers to do the cutouts. |
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04/27/2007 05:03:36 PM · #10 |
Originally posted by Bugzeye:
it is about 6:45 AM Saturday there. might have to wait ahwile for any input...
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good point...he's prolly not done his friday night drinking yet ;) |
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04/27/2007 06:47:26 PM · #11 |
Using white is probably easier than color for doing still photography. It's quite easy to do a blend with a bright white background.
The negative about chroma b/gs is the possibility of color spill. With a white or even a grey b/g color spill is not an issue.
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04/27/2007 07:11:26 PM · #12 |
| Is there a tutorial somewhere about the best way to cut an object out from a background without getting the halo affect arounjd the edge of the object. Would appreciate a link. |
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04/27/2007 07:13:09 PM · #13 |
now you tell me after i already ruined all my white muslin. lol
actually there is a sale going on this weekend I might go grab another roll.
Originally posted by fotomann_forever:
Using white is probably easier than color for doing still photography. It's quite easy to do a blend with a bright white background.
The negative about chroma b/gs is the possibility of color spill. With a white or even a grey b/g color spill is not an issue. |
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04/27/2007 07:18:18 PM · #14 |
Basically, any solid color will work, but the Red, Blue or Green screen works best.
Just make sure that what ever your subject matter is, don't use the same color as what you are using for a bg. Cleaning up the image will be that much time consuming.
Learning how to extract, or include an image is very easy one you learn how to manipulate 'Alpha Channels'.
Alpha channels will give you the fine detail of any fractal, I.E. Hair.
Message edited by author 2007-04-27 19:19:05.
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