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PhotoKey 4 and Blue Screen

Posted: Mon, 28th Feb 2011, 11:11pm

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FXhomer164474

Force: 800 | Joined: 28th Feb 2011 | Posts: 4

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I'm interested in purchasing the FX PhotoKey 4 software, but wanted to know if the program works with a blue screen, rather than a green screen? Are there any settings within the program that I would need to change or any differences in setting up the lighting? My subjects will be wearing green shirts, but many will probably be wearing blue jeans. Will this be a problem? Sorry for the noob questions!
Posted: Tue, 1st Mar 2011, 1:37am

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Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

Yes, PhotoKey works with either greenscreen or bluescreen images. By default the Keying filter is set to Auto, which will almost always determine the correct color to key out. If it doesn't, though, you can manually select Green or Blue as the color to remove, using the menu in the Auto Color Difference filter.

If you shoot green clothes in front of a greenscreen, or blue clothing in front of a bluescreen, there will be problems. Period. When you are selecting and removing the background based solely on color, then you need to not have anything else of that color in the frame, its fundamental to the principles of keying.
Posted: Tue, 1st Mar 2011, 9:13am

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Simon K Jones

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Photographers who shoot with a variety of subjects that they don't have full control over (such as at an event with members of the public) sometimes have both a greenscreen and a bluescreen on the set so that they can accomodate both eventualities. Some pop-up screens are actually reversible, with green on one side and blue on the other, so that you can really quickly switch between the two.
Posted: Tue, 1st Mar 2011, 4:53pm

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FXhomer164474

Force: 800 | Joined: 28th Feb 2011 | Posts: 4

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This is going to be for an event, but the space that I have to work with is somewhat tight, so I would be limited to only one screen. I'll just try to shoot above the waist. Are there any differences with lighting that I need to consider? Also, do you know which specific blue I am supposed to use and is there any where that you can reccomend me to buy the fabric from?
Posted: Tue, 1st Mar 2011, 6:15pm

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Axeman

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SuperUser

Lighting is basically the same for either one; though chroma green is generally a bit brighter, so it might require a little bit less light, but not much.

You will want chroma blue for your bluescreen, so I would recommend buying it from someone who is selling actual bluescreens, and not just some blue fabric. If you get the right fabric, that could still work, but you are much safer getting the real thing. Tubetape is one supplier who offers nice quality stuff at affordable prices. www.bhphotovideo.com , www.ebay.com , www.studiodepot.com , www.adorama.com , and www.markertek.com are some of the other suppliers i know offer chroma blue products.
Posted: Wed, 2nd Mar 2011, 4:34pm

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TubeTape

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Axeman wrote:

You will want chroma blue for your bluescreen, so I would recommend buying it from someone who is selling actual bluescreens, and not just some blue fabric. If you get the right fabric, that could still work, but you are much safer getting the real thing. Tubetape is one supplier who offers nice quality stuff at affordable prices.
We have an excellent blog explaining which color screen to choose (chromakey blue or green) and if one is better than the other. This might be very helpful to you in choosing your screen. http://bit.ly/elAchF

Also, Axeman is right. We sell quality screens that are true chromakey. It will save you a lot of time in editing if you go with a professional screen, as opposed to just purchasing blue or green fabric. Every week we also offer one select item 50% off. And if your looking for a chromakey screen, this Thursday might be a good time to visit tubetape.com. wink
Posted: Fri, 11th Mar 2011, 6:39pm

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njush

Force: 1720 | Joined: 29th Jan 2010 | Posts: 46

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Not sure if this is too late but...
As a sports portraits photographer, I shoot literally THOUSANDS of subjects over the course of the year and it's absolutely guaranteed that some will be wearing green and others blue (since each team has different colors).
In a tight location, the reversible pop-up screens are ideal and work fantastic.

Here's a like to one version from tubetape: http://www.tubetape.net/servlet/the-62/Reversible--fdsh--Flex--dsh-/Detail
Posted: Fri, 11th Mar 2011, 10:21pm

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xtremed

Force: 2250 | Joined: 10th Sep 2008 | Posts: 109

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Rating: +1

I agree with njush , we shoot at some events with over 150.000 visitors. So there are people wearing blue of green. So we've got a standard green backdrop but also the foldable blue/green pop-up. This way even people wearing green will be able to get their photo taken.
Posted: Fri, 8th Apr 2011, 4:05am

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timcosby

Force: 400 | Joined: 7th Apr 2011 | Posts: 3

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you can always use masks too. the software will work with a black background too...sometimes!
Posted: Fri, 8th Apr 2011, 8:09am

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Simon K Jones

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timcosby wrote:

you can always use masks too. the software will work with a black background too...sometimes!
Hmm, I'm glad it's worked out for you, but the software isn't designed to work with a black background, and I wouldn't want people to get the wrong impression. smile