+ Post New Thread
Results 1 to 5 of 5
AV and Multimedia Related Thread, Greenscreen camera recording in Technical; I know i've probably left it too late, but a few kids want to do a Nativity play for the ...
  1. #1
    DaveMurphy's Avatar
    Join Date
    Aug 2009
    Location
    Manchester
    Posts
    204
    Thank Post
    12
    Thanked 9 Times in 8 Posts
    Rep Power
    12

    Greenscreen camera recording

    I know i've probably left it too late, but a few kids want to do a Nativity play for the local church on christmas eve, the snag is they have to pre record it and have asked if they can greenscreen it, I had no problem with that, we have the screen etc but what cameras best for doing it?

    Every camera I seem to use ranging from a Canon xm2 to a HD Logitech Sphere camera all seem to be really pixely... will it matter if I use the HD Sphere Webcam to record and then edit on Vegas Pro? as long as I get the chroma keyer thing right it wont leave green splodges?

    If you get what I mean, I generally confuse myself

  2. #2
    TechSupp's Avatar
    Join Date
    Mar 2007
    Location
    South Yorkshire
    Posts
    1,875
    Thank Post
    295
    Thanked 120 Times in 101 Posts
    Rep Power
    40
    I've only tried basic chromakey filming but the key is to get a good 'green screen' and get the lighting right, if you do that then you can get some good results. I used any software to record to an avi then used the free WAX video program for the greenscreen bit. My 'green screen' was a green plastic table cloth from The Range, seemed top work OK, not the best but I'm a cheapskate! Inscructions for how to chromakey with WAX can be found on the web. The software allows you to select any background colur being used but green and blue works best. Hope that helps.

  3. #3

    maniac's Avatar
    Join Date
    Feb 2007
    Location
    Kent
    Posts
    3,037
    Thank Post
    209
    Thanked 425 Times in 306 Posts
    Rep Power
    144
    The lighting is the key thing - if it's too patchy then the green screen will appear different shades of green to the camera because the lighting intensity across the scene isn't the same. We used to use a wall painted in a shade of green brought off the shelves of B&Q - did the trick for us. Also used to use 500w workshop floodlights to light it with because they're cheap and bright!

    Mike.

  4. #4


    Join Date
    Sep 2007
    Location
    UK
    Posts
    5,329
    Thank Post
    1,380
    Thanked 850 Times in 543 Posts
    Rep Power
    639
    Yup, lighting is the key. That's why Lighting Technicians on movies have a string of letters after their name. Watch out for shadows on the screen.

  5. #5
    SteveBentley's Avatar
    Join Date
    Jun 2007
    Location
    Yorkshire
    Posts
    1,429
    Thank Post
    119
    Thanked 262 Times in 188 Posts
    Rep Power
    72
    One technique that seems to be gaining popularity is not to have a green/blue screen at all, but a curtain made of reflective beads. A ring of blue/green LEDs around the camera lens gives the appearance that the background is blue/green and the lighting is much less critical. The weather on certain BBC regional programmes is done this way.

    The other thing to investigate is whether the software you are using can do a "garbage matte" to ditch the green splodges. You may also have some tolerance values for how close to the reference shade of green it has to be to be disappear.

SHARE:
+ Post New Thread

Similar Threads

  1. Recording Complete!
    By Domino in forum General Chat
    Replies: 6
    Last Post: 14th September 2009, 06:01 PM
  2. Recording gameplay off your PS3
    By Oops_my_bad in forum Gaming
    Replies: 0
    Last Post: 18th July 2009, 06:46 PM
  3. Enable CD recording on this drive
    By tomscaper in forum Windows
    Replies: 2
    Last Post: 6th March 2008, 03:31 PM
  4. Recording TV programs for Teachers
    By Paid_Peanuts in forum How do you do....it?
    Replies: 19
    Last Post: 29th February 2008, 10:52 AM
  5. Screen Recording
    By alonebfg in forum Windows
    Replies: 7
    Last Post: 28th May 2007, 10:34 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •