13 seconds. 3200 I think. Much longer than that and the noise goes up and the stars get blurrier. I am curious about experimenting with combining 15 2-secod exposures, or something like that. From: nikonf4-bounce@xxxxxxxxxxxxx [mailto:nikonf4-bounce@xxxxxxxxxxxxx] On Behalf Of Eric Welch Sent: Thursday, December 09, 2010 8:23 AM To: nikonf4@xxxxxxxxxxxxx Subject: [nikonf4] Re: Meteors / Aurora The difference is film has no chance competing with a D700 at high ISO. I believe that would be 13 seconds. I remember shooting Northern Lights in Canada back in the early 80s on Kodachrome 64 and a Pentax LX and 50mm 1.4. I think the exposure - picked by the camera reading off the film (the LX was one of the first to read ambient exposures reflected off film) - was about 30 seconds. On Dec 8, 2010, at 11:50 PM, Koichi Mac wrote: Um.that's for Windows, isn't it? Let me see if I can check the metadata. Got it, here is PNG. So that's 13 seconds? or 1/13 second? - much shorter than I anticipated anyway. I have a shot of northern lights / aurora, spent about 8 minutes with film and wouldn't show up spectacularly like that, suffering a massive reciprocity failure. <Screen shot 2010-12-08 at 11.46.01 .png> Koichi Yasutani - a.k.a. Steve + MP Lakewood, WA U.S.A. CC: F4FL 2010 / 12 / 8 23:49 PST On Nov 30, 2010, at 2016 , John Osthus wrote: I believe I did not strip it out of the EXIF. Do you have Opanda? http://www.opanda.com/en/iexif/ Nice to have. A right click leads you to all of the data. -----Original Message----- From: Koichi Mac [mailto:nikonf3tmd4@xxxxxxx] Sent: Tuesday, November 30, 2010 9:56 PM To: John Osthus Cc: Nikon F4 Subject: Re: Meteors Thanks for the forward. Shows really nice. Mind to share data? On Nov 30, 2010, at 1945 , John Osthus wrote: From: John Osthus [mailto:josthus@xxxxxxxxxxx] Sent: Tuesday, November 30, 2010 8:53 PM To: 'Eric Welch' Subject: FW: Meteors Hi Eric Thanks again for the Audio help. If you look at this at 100 percent you can see 4 meteors, faintly. All near the center of the screen sort of. Best, JO From: John Osthus [mailto:josthus@xxxxxxxxxxx] Sent: Tuesday, November 30, 2010 8:46 PM To: 'jaypax@xxxxxxxxxxxxx' Subject: Meteors Jay, Thanks for your interest. This is a low-rez version of a NEF I shot with the D700. There are a couple of faint trails near the milky way near the center of the image, and a couple of smaller traces on the left center. You have to enlarge to 100 percent to see them well. Not show stoppers when it comes to meteors - these were accidents while I was shooting the milky way hoping for a meteor. I didn't see any of these the camera caught. Best, John <_DEF0746.jpg> Eric An engineer, a physicist, and a statistician were moose hunting in northern Canada. After a short walk through the marshes they spotted a HUGE moose 150 metres away. The engineer raised his gun and fired at the moose. A puff of dust showed that the bullet landed 3 metres to the right of the moose. The physicist, realizing that there was a substantial breeze that the engineer did not account for, aimed to the left of the moose and fired. The bullet landed 3 metres to the left of the moose. The statistician jumped up and down and screamed "We got him! We got him!"