Archived posting to the Leica Users Group, 1998/04/28[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Message text written by Danny Gonzalez >I would like to make some sort of a valid = test and, since I'm not familiar with the requirements, how does this sound?: = I point the camera, with a roll of Neopan 1600 in it, on its back, straig= ht up to the sky = and take a number of frames in succession @ 12/secs w/ the 50 and 7 secs.= with the 85. I = develop the film in a scrubby, D76 type developer for a 4x push. My camer= a does have = some sort of mirror-up custom function, so that'll be good. What else do I need to do? I remember something about shooting away from the polar = extremes as that is where the sky spins fastest? Anything else I can do t= o get useful = results? = Maybe if a Leica rep reads this, she'll offer us a 75 and a Noct to test against<s>? < Hi again Danny, The Neopan sounds good - should give some pictures with bite Shooting straight up will give certainly give the best pictures and the Ursa Major - the plough - just happens to up there to provide a good recogniseable target that fits into a 50mm frame. It also sounds like you have thought about this in the past - the sky rotation shows up increasingly as you point the camera away from the pol= e i.e. the angular movement in a given time is greater. Pointing towards t= he pole, you could take longer exposures than the 600/f rule of thumb. How about if I take the same pictures here using my Leica noctilux and 75= summilux and send or e-mail the negs or full frame prints to you as a comparison. If I get a clear night in the next few days, I could even ge= t them off to you first . While you have the film in the camera, I would be interested to see what the effect of shooting some distant lights against a dark background look= like with your lenses . If the contast between light and dark is high enough, sucessivly increasing exposure times should show up increasing ha= lo effect - perhaps? - I also need to try this myself to see what happens. Cheers, Donald.