Shutterstock Photographer Forum :: View topic

lukeurbine · Horning 04-05-12 -4.jpg

Good Morning all, I have just started to use a green screen for white isolations. For the most part I really like it. It makes it very easy to select etc. But today I am running into a problem that I hope someone could help me. The issue is that I have a glossy floor lamp. Raising it would be an answer, but it is a bit too tall. So I get a slight green hue to parts around the base. Below are a few samples of what I have going. Any advice would be appreciated. Thank you in advance for your time.

triceratops · Joined: 15 Nov 2006 Posts: 7863 Location: The other Nevada

Instead of setting it directly on the green fabric, put a piece of white foam board under the object. Use a large piece, say 3x4 of so. That'll not only get rid of the green reflection but isolate that part of the image and act as a light reflector to fill in any shadows.

copidosoma · Joined: 17 Nov 2009 Posts: 3787 Location: Canada

You could just try a selective desaturation of greens in photoshop. Given that there isn't much (if any) green in your subject it shouldn't change the colours too much (besides the green cast).

rinder99 · Posted: Thu Apr 05, 2012 11:58 am

Why not just get a roll of white vinyl instead.??

lukeurbine · Posted: Thu Apr 05, 2012 1:28 pm

Thanks for the tips, a roll of white vinyl would be best in the future. For today a combo of decreasing the sat and using a piece of foam core helped.

semmickphoto · Posted: Thu Apr 05, 2012 5:40 pm

rinder99 · Posted: Thu Apr 05, 2012 7:02 pm

So simple and cheap.

http://www.cowboystudio.com/product_p/vinyl-white.htm

whughes98144 · Joined: 26 Apr 2010 Posts: 497 Location: Seattle, WA

Well, I thought the "decontaminate colors" option on "refine edge" was for exactly this problem. At least that what PS docs say... I've never tried green screen.

Will

rinder99 · Posted: Fri Apr 06, 2012 12:16 am

Ya right....Fix it later. Boy, You guys.

lukeurbine · Posted: Fri Apr 06, 2012 10:35 am

right - if I can get it right in camera why screw around in post? for yesterdays project foam core worked fine. Future projects will incorporate the use of white vinyl. The issue that I have there will be the blending of the white antlers into the backdrop. I used a white sheet before and had that issue. Any ideas on preventing that from happening?

triceratops · Joined: 15 Nov 2006 Posts: 7863 Location: The other Nevada

Whenever I've had that problem, I switched to a black background. Really shows off a white subject. You can generally pick any BG you want so long as it doesn't compete with the subject. Keep in mind that buyers see our images as small thumbnails so you want the BG to focus attention on the subject. The original of my avatar is on black. I changed it here just for fun and to add a little color, but would never use this BG on an image meant to be sold.

rinder99 · Posted: Fri Apr 06, 2012 11:19 am

Easy, Background and subject has to be lit separately.And if you do Black, It has to be lit from behind also. Otherwise you get the floating effect. No dimension.In the same manner as this simple portrait. without a backlight she would be a floating head. Not a good thing.

lukeurbine · Posted: Fri Apr 06, 2012 11:55 am

thanks for taking the time to help. I knew the pros here could offer some high quality advice!

rinder99 · Posted: Fri Apr 06, 2012 12:00 pm

Heres another trick for products to get a 3D effect on Black. 2 main Lights and 2 side Lights. works very well. Have fun.See how she pops out now??Same model. Lighting can change our perception of space.

jeffbanke · Posted: Wed Apr 11, 2012 11:42 am

The trick with green screen (actually with any color including white) is to reduce the spill, meaning the relflected light from the background. This is created simply by increasing the distance from the subject to background. One can get the same problem with a subject too close to a white background in that there is too much light wrapping around the subject so as to cause a blooming effect and loss of edges of the subject.

These were all green screen just to show it can be done