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Telescope Pictures 17
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Telescope Pictures 17
"R. Dean" wrote in message t... Very, very interesting picture of something. The whole series looks great. Could you give us more detail of where and, if possible, what settings ? I am assuming these are all in the USA. Doug (Scotland) |
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Telescope Pictures 17
"Doug Maclean" wrote in message ... "R. Dean" wrote in message t... Very, very interesting picture of something. The whole series looks great. Could you give us more detail of where and, if possible, what settings ? I am assuming these are all in the USA. Doug (Scotland) All the photos were taken from my backyard in California. I used a Canon XTi SLR Digital Camera with Celestron 8 telescope using a t-ring and t-adapter. All of the pics were taken at the maximum picture size and detail (10 mp) but were reduced to 860x480 for posting on the newsgroup. The scope is a set F-10. You generally have to use aperature preferred which then adusts to the correct shutter speed. You can contorol things more by playing with the exposure using ASA settings. On a bright day you can use 100 with no problem. If the light is low you need to go up to 400 but no higher. Shooting the planes requires at least 1/600th shutter speed and if they are close about 1/1500. I usually use auto white balance (that seems to do it) and set the detail on around 3/4 sharp and keep everything else neutral. All focusing is manual and mirror lockup will not work because you need to follow the target. However, mirror lockup only comes into play using slow shutter speeds. You can override the shutter speed on aperature preferred by going to shutter speed preferred. You can increase shutter speed considerably without the picture going dark on you. Even if it does you can save it using picture software. I use Adobe Elements 5.0 and you can do almost unlimited procedures to bring out the picture. Some of these include brightness, contrast, midtones, (multiple controls) plus sharpening, noise removal, cropping and resizing, auotmated color correction -- the list goes on an on. Hope this helps. Rex |
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Telescope Pictures 17
Fantastic Rex. Really interesting,
Doug |
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Telescope Pictures 17
"R. Dean" wrote:
[image] Is this a Pegasus launch? --Bill Thompson |
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