Marta Bobic Posted October 16, 2007 Share Posted October 16, 2007 I'm shooting a short soon on 7218. It may sound odd, seeing as almost all of the film is in daylight, but as there is so little to be shot indoors I don't want the cost of extra stock I won't use, and would rather just use one for the whole thing. I know some people don't like having glass on the lens all the time, but I generally prefer tungsten stocks, and I don't like correcting the other way around (it never looks quite as good). So my question is, 85 or 85B? I read on the Kodak spec sheet for the 7218 that with an 85 the EI is 320, and with an 85B it's 200. But elsewhere I've heard that the usual 2/3 stop compensation applies to both. I know that an 85B is the 'proper' correction filter for modern stocks, but what is the difference visually between the two? If it really does end up as a 200ASA, then I may as well shoot on the 250D and just gel my lights with CTB for the interior scene. Any thoughts or advice? Link to comment Share on other sites More sharing options...
Premium Member David Mullen ASC Posted October 16, 2007 Premium Member Share Posted October 16, 2007 The 85B converts 5500K to 3200K and the 85 converts 5500K to 3400K -- not a big difference, well within a correctable range on color negative. It only matters which one you use if you are shooting reversal for direct projection with no ability to color-correct. Link to comment Share on other sites More sharing options...
Marta Bobic Posted October 16, 2007 Author Share Posted October 16, 2007 Thanks David, that clears things up a bit. It will be on negative stock, so that part's not a concern. However, how about the compensation side of things? Link to comment Share on other sites More sharing options...
Premium Member Michael Nash Posted October 16, 2007 Premium Member Share Posted October 16, 2007 An 85B filter should reduce light about 2/3 stop. I don't know how this 200 ASA figure came about -- that's a 1-1/3 stop light reduction! http://www.tiffen.com/displayproduct.html?...itemnum=105C85B Link to comment Share on other sites More sharing options...
Premium Member David Mullen ASC Posted October 16, 2007 Premium Member Share Posted October 16, 2007 Just treat them both as losing 2/3's of a stop. Truth is that an 85B filter, from what I've measured, loses more like 3/4 of a stop... Link to comment Share on other sites More sharing options...
Premium Member Adam Thompson Posted October 17, 2007 Premium Member Share Posted October 17, 2007 If you use 250D and CTB your lights, you'll lose a lot of their output. You'll need to be use 1 or 2Ks at fairly close range depending on how you need to use the lighting. (Im assuming you have little to work with budget wise) Ive had to do it a few times with small light kits and its amazing how little output they'll have with full correction. You might use 1/2 or 3/4 CTB at most and correct for the rest. If you can rent it, get a small HMI like a Joker. Link to comment Share on other sites More sharing options...
Vincent De Paula Posted October 18, 2007 Share Posted October 18, 2007 Her's a link to some stuff I shot this year on 7218 rated 320ASA with an 85 filter on for the outside shots. I had NDs in the matte box. The framegrabs are from DVCam rushes cloned from the Digibeta dailies. http://www.vincentdepaula.com/VDP%20DOP%20...0Red%20Hood.htm My 2 cents... Link to comment Share on other sites More sharing options...
Marta Bobic Posted October 18, 2007 Author Share Posted October 18, 2007 Thanks, Vincent! Looks good! I'll post some from my short when I have something to post! I think I will stick with the 7218 and the 85B, it seems that that is the way to go. And thank you David and Adam too, I'm grateful for the advice. Link to comment Share on other sites More sharing options...
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