On 10/24/2011 04:44, Larry Colen wrote:
The only point of these photos is seeing if they could be done. They are pictures of Jupiter's moons taken using the astrotracer with my tamron 300/2.8 plus both the 2x and the 1.4x teleconverters, the sigma 50-500 and the FA77. I blew my math and said that the focal length of the tammy was 700, when it's really 840, so the astrotracer didn't work as well as it could have. I think that it says something about the resolution of today's sensors that I can get photos where you can discern several of Jupiter's moons using a 77mm lens. Some more of tonight's experiments at: http://www.flickriver.com/photos/ellarsee/sets/72157627965578134/ I'm starting to learn how to make the astrotracer work, when I have some time, I'll need to learn image stacking. -- Larry Colen [email protected] sent from i4est
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