haapanen@watdcsu.UUCP (Tom Haapanen) (12/12/85)
As the Halley's comet is around, and I probably won't be the next time it is ( :-), I'd like to shoot some pictures. But, but, but, I have really no idea as to how to go about this. Just taking random pictures with random lenses, film and exposure doesn't seem like a good idea. So, what kind of film should I use (I'd prefer slides, but...)? What about exposure times and apertures? The lenses I either own or can borrow include a Canon 100-300/5.6, Tamron 70-200/3.5 and a Vivitar 75-205/3.8. I also can use a Vivitar 3x multiplier and a Makinon (el cheapo) 2x multiplier. What kind of combination should I be using to avoid huge grain and massive lack of sharpness? Thanks for any help. \tom haapanen watmath!watdcsu!haapanen I'm all lost in the Supermarket I can no longer shop happily I came in here for that special offer Guaranteed personality (c) The Clash, 1979
howard@sfmag.UUCP (H.M.Moskovitz) (12/13/85)
> As the Halley's comet is around, and I probably won't be the next time > it is ( :-), I'd like to shoot some pictures. But, but, but, I have > really no idea as to how to go about this. Just taking random > pictures with random lenses, film and exposure doesn't seem like a > good idea. > > So, what kind of film should I use (I'd prefer slides, but...)? > What about exposure times and apertures? The lenses I either own or > can borrow include a Canon 100-300/5.6, Tamron 70-200/3.5 and a > Vivitar 75-205/3.8. I also can use a Vivitar 3x multiplier and a > Makinon (el cheapo) 2x multiplier. What kind of combination should I > be using to avoid huge grain and massive lack of sharpness? > As far as lenses are concerned, I would recommend that if you have a shop in your vicinity that rents equipment, to rent a Celestron telescope and camera adapter. That will give you superior sharpness and quality. If you are going to make long exposures (>30 seconds) rent a clock drive for the scope as well. As far as film is concerned, the faster the film, the shorter the exposure, therefore the lower chance of vibration blurring the image and of film reprocity causing a color imbalance. I would reccomend Kodak Ektachrome 800/1600 or Fuji 1600 slide film for color, Ilford HP-5 developed in Diafine at 3200 ASA. -- --------------------------------------------------------------------- Howard Moskovitz AT&T Info. Systems attunix!howard