![]() many can also be used terrestrially.Īs an example, the Meade ETX series (the ETX90 computerized version) is very portable, gets very good reviews for its optics, and many have had excellent results attaching DCs (you will need to get adapters. advantages are the the SCT or MCT scopes are more portable, fitting the same aperture and longer focal length into a more compact package. No way this scope should be used at 675x.Īlso, although you certainly could attach your camera to a newtonion scope (which is what this bushnell is), you/your husband might find it easier and more intuitive to use a Schmidt- or Maksutov-Cassegrain focus. in general you would not use a 4.5" scope at much greater than 225x. the rule of thumb is 50x for each inch of aperture. As an example, the magnifications claimed for this telescope are beyond what its mirror size can actually provide. ![]() Basically, the scopes and mounts don't fulfill the promise of the hyped-up ads. They are often mounted in mounts that are not sufficiently stable to support the optical tubes (vibration is the bane of observing and photographing thru a telescope). ![]() Optically, they are middle of the road or worse. To me, Bushnell is noted for inexpensive beginners scopes at bargain prices. Although I did not find a review of the scope in Sky and Telescope or Astronomy mags, I think you can probably do better. Check these link for info about buying a first telescope:Ī quick search for the Bushnell Northstar 674 x 4.5 yields prices of ~$300 US. ![]()
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