Comments

baysidebas wrote on 6/18/2009, 10:07 AM
Proper white balance not doing it for you?
musicvid10 wrote on 6/18/2009, 10:36 AM
Can you upload an example somewhere?

If you are wanting to cut sunlight reflections from the grass blades, you need a polarizing filter, adjust the outer ring for minimal reflection.
richard-courtney wrote on 6/20/2009, 8:38 AM
Thanks for responding.
Century Black Frost was what I was looking for. Just like a scrim behind outdoor
interviews!
Serena wrote on 6/20/2009, 7:32 PM
Not clear to me why a black frost will cut yellow; maybe your post didn't adequately describe the situation? Did you just want to diffuse hot spots on the grass?
musicvid10 wrote on 6/20/2009, 9:19 PM
At the risk of repeating myself, can you upload an example somewhere?
jabloomf1230 wrote on 6/21/2009, 6:44 PM
Maybe someone can watch the BF short instructional video and figure out what the request was about:

http://www.schneideroptics.com/century/filters/dvd.htm
farss wrote on 6/21/2009, 11:14 PM
Probably worth a mention that I did get a few minutes with Schneider at NAB and had a look at some of these kinds of filters, well as much of a look as can be had holding the filter in your hand.

What I did pickup on is that these kinds of filters are now made in different grades for 35mm and HD. If I heard right a HD Full Black Frost is around the same as a 1/2 Black Frost but do check this before buying or renting. Also extremely good advise in that video to check the result on a GOOD monitor.

Bob.
richard-courtney wrote on 6/22/2009, 1:24 PM
Sorry haven't been able to respond. I will try to post a few images some how,
my ISP has dropped free hosting. The scene will be at a public golf course.
I am trying to avoid post correcting some yellow to get that rich green.

A while back a crew was in for a local invitational and I had a chance to talk with
a cameraman for the network. Black Frost was mentioned over polarized
because the camera must swing through angles that would change the effect.
This filter should not touch the blacks as much as using a stronger ND would.
Another name (German, I think) was mentioned, but my memory fails me.
It used some rare earth materials, so not cheap. Mattebox HD filters are
expensive anyway. (Does that help jog anyone's memory?)

Thanks for you help so far.
baysidebas wrote on 6/22/2009, 6:32 PM
Have you thought of using the secondary color corrector to do this?
Serena wrote on 6/22/2009, 11:18 PM
Don't think this would work well with 2nd CR, but anyway is preferable to adjust in camera. Still not sure what is the problem and assume it has to do with specular highlights on the grass that can give it a very different look. I don't recall that it looks yellow and it's winter here so I can't go and check. Taking the question at face value I would have pointed out that a blue filter will reduce yellow, but I think that isn't the question.

EDIT: tonight watching "Time Team" I saw the situation: low sun on lush grass has a yellow cast to it. I don't think it was the influence of all the yellow flowers dotted through the field. Not specular, I would say. Certainly not to be corrected with a coloured filter or in post. I thought it a good spring/summer look and would have to experiment to find a "correction".