stronger blue than full ctb

[david_altmann]

if i want to light something blue i use one or more lee 201 full ct

blue filters. but i found that theese are just not blue enough. the

moonlight seems to green to me. now my question, is there a blue

filter, stronger than full ctb that is still "neutral" ?

with neutral i mean just a color temperature shift but not in any

other direction (magenta or cyan).

 

David

[steve_hovland]

Add a quarter or half blue.

[twmeyer]

what color is the object you are trying to make blue? When I try to make a background glow blue, I put a blue gel on a blue background, and man I get <i>blue</i>... t<div></div>

[david_altmann]

its not a seamless or something. mor like turning the furniture in the background blue. and its also possible that a bit of the main light reaches teh background. so i need really strong blue. more than two layers of ctb.

 

David

[twmeyer]

Could you light your forground with a hot light and use Tungsten White Balance/film or /Custom WB to that light, and light the furniture with strobes gel'd blue? That would force the color temp of the strobe to a deeper blue due to the daylight temp of your strobe light, compounded with the blue gel. That might get you closer... t

[heller_harris]

Congo Blue

[david_altmann]

i like my main neutral.

 

congo blue is interesting, but if you look threw it theres so much red in it.

same with moonlight, too much green.

 

 

David

[twmeyer]

If your main is tungsten and your film/white balance is tungsten (or custom wb to that light), then your main <i>is</i> neutral. <p>If your background is daylight (or unfiltered strobe) it will be blue in this scenario, even with no gel, and if you then add a blue gel to it, it will be waaay blue. Maybe blue enough?... t