Hi Christopher, Thanks so much for responding. Your comments on exposure in other low light situations have really helped put some perspective on shooting this projection. My fastest lens is a 1 inch that opens to 1.4, and I am using a 500T stock. I think the best thing to do is as you say, shoot a test. The people who run the planetarium have been really welcoming, so going for a test and then returning will work out. Thanks again! Nicole Elaine Baker MFA in Visual Studies, 2019 Pacific Northwest College of Art Hallie Ford School of Graduate Studies *www.magiklantern.com <http://www.magiklantern.com>*
On Wed, Jun 26, 2019 at 5:04 PM Christopher Ball <cbifi...@gmail.com> wrote: > An incident light meter will not tell you much at all. It wont be > possible to get incident readings of the projected images, especially if > they are small dots (stars). In an ideal world you'd shoot a test. You > might be able to determine the level by shining a light on the wall that > looks by eye roughly the same brightness as the projected images, and then > taking an incident reading of that, if you can't access a spot meter. It > might get you in the right range. > > Do you have fast lenses? You'll want 1.3 lenses for sure. What stock are > you using? If you shoot with 500 ASA stock, wide open on fast lenses you > will probably get an exposure, though it still might be a bit low. 500 asa > stock at f1.3 will read light thrown by a candle, which is quite low, or > will easily expose exterior night streets. If you have any sense of the > relative brightness of the projection to those type of situations it might > help you estimate. > > You could consider push processing as well, to get more exposure, but the > smaller projected images of stars may start to look blurry if the pushed > image gets too grainy. > > Christopher > > On Mon, Jun 24, 2019 at 11:48 PM Nicole Baker <neba...@pnca.edu> wrote: > >> No need for real time. Speeding the motion up could be ideal. However, my >> camera only slows to 16fps. Or maybe 8? >> >> >> On Mon, Jun 24, 2019, 8:40 PM Scott Dorsey <klu...@panix.com> wrote: >> >>> Does it have to be in realtime? Light levels will be very very low, >>> but undercranking the camera might make it possible to record something. >>> --scott >>> _______________________________________________ >>> FrameWorks mailing list >>> FrameWorks@jonasmekasfilms.com >>> https://mailman-mail5.webfaction.com/listinfo/frameworks >>> >> _______________________________________________ >> FrameWorks mailing list >> FrameWorks@jonasmekasfilms.com >> https://mailman-mail5.webfaction.com/listinfo/frameworks >> > _______________________________________________ > FrameWorks mailing list > FrameWorks@jonasmekasfilms.com > https://mailman-mail5.webfaction.com/listinfo/frameworks >
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