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Thread: Spotting Scopes

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    WWPierre's Avatar
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    Default Spotting Scopes



    I wonder why spotting scopes are not recommended for astronomy?
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    Default

    Here ya go found this online:

    "Spotting scopes are designed for looking horizontally, with an image that is upright and not mirror-reversed. The eyepiece position will likely require craning your neck when looking upward, and the extra optics to get the image straight will raise the price and degrade the view. Also, spotting 'scopes must be robust enough to haul around. That makes them heavier and costlier than astronomical telescopes the same size."

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    Default

    I think because they mostly come with a small tabletop tripod.,., and a 45* correcting prizim,.,thus,., you must contort to see anything that is more then 30* above the horizon.,.O+O

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    Default

    Jupiter and its moons are really fun to look at with a spotting scope, as well as earth's moon during twilight conditions. This spotting scope magnifies to about 30x, about four times the magnification of my binoculars so it gives a nice view of Jupiter's moons. Not having mirror reversal is big plus when first spotting a few lunar craters. The tripod I use allows me to view the sky comfortably up to about 45 degrees altitude. Kids, however, seem to get along with the steeper angles a lot better for some reason. The spotting scope works great for them as long as they are cautioned and/or supervised regarding not looking towards the sun. One of its main advantages is that the spotting scope is light and therefore easy to take on trips to darker sky sites.

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    Default

    Peter, I think spotting scopes are similar to terrestrial scopes like our recently purchased ST-80T (shorttube 80-terrestrial).

    It has a right-side up viewing angle diagonal (45 degrees) and also right-side up finderscope. I actually prefer this, as one can use it for land and sky viewings but the problem as mentioned is it is hard to look through both especially when pointing high up at the zenith.
    Name: Gus OTAs: ED 100 PRO refractor, Orion ST80 (not the CF), 8" Dob stuck in Canada Mounts:HEQ5PRO Synscan mount, Manfrotto Tripod CAMS: Guidecam Philips SPC900 webcams (4), Canon unmodded-450D DSLR

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    Default

    Quote Originally Posted by WWPierre View Post
    I wonder why spotting scopes are not recommended for astronomy?
    Spotting scopes usually have a prism for correcting the image , and that prism cuts down on the incoming light in the light train ...Not so good for astronomy .. But OK during the day ....
    16in Night sky
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    classic Big-mac , Meade eye pieces with a few odd balls thrown in ...
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