best/propper silk diffusion for overhead lighting

[pulpwoody]

I'm putting in a simple, 2 500 watt lowel tota lighting "grid" for our studio. the totas work well for a broad light, and I'm using two at 500 watts each. I need to diffuse them to get more even coverage and the gel frame with a diffusion sheet doesn't work, there's not enough coverage and way too much light leak from the sides. I have a throw of only four to five feet from the light source to the wall, so what density of diffusion silk/cloth would best to get good even coverage. Also keep in mind, the silk has to be probably about a foot or so away from the open face lights.
Thanks.

 

[CharlesPapert]

It's an old school approach, but if you want to keep it simple, use the Lowel reflector umbrella. At that distance you are probably OK with punch, so I'd recommend the white version over the silver for a smoother field.

http://www.lowel.com/reflectors.html

Alternately, you can use a Photoflex softbox, with the appropriate speed ring adaptor (http://www.bhphotovideo.com/c/product/310260-REG/Photoflex_VC_BL4002_Speed_Ring_for_Lowel.html). I have one of these and it works nicely.

 

[spectrumfilms]

I agree a sodtbox is probably your best bet. Chimera makes nice ones, I would suggest an egg rate which also helps channel the light and prevents spill

 

[pulpwoody]

I need to look more into how much space I have, but I don't think I have enough for the softboxes. I'll post some pics of the space.