DIFFUSION FILTER AND STOP

le carre de la distance

http://photography.tutsplus.com/articles/rules-for-perfect-lighting-understanding-the-inverse-square-law–photo-3483

GAMME LEE FILTER

216 – white diffision

– 1 Stop

416 – 3/4 diffusion

-0.8 stop

250 – 1/2 diffusion

-0.6 stop

450 – 3/8 diff

-0.3 stop

251 – 1/4 diff

-0.5 stop

252 – 1/8 diff

-0.3 stop

452 – 1/6 diff

-0.2 stop

400 – leelux

-1 stop

228 – brushed silk

-0.3 stop

http://www.leefilters.com/lighting/packs.html# 

a regarder frost a 2.29

grid cloth a 5.56 la ref 432…

430 – -1.2stop fuff diff

432 – -0,8stop – medium diff

434 – -0,4 stop – quarter

http://www.leefilters.com/lighting/colour-details.html#434&filter=dc