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Lou mvas telescope
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Transcript of Lou mvas telescope
TelescopesEverything you wanted to know
…but could not afford to ask!
Presented by Lou DiNardo
Pros and Cons of Refractor Pros
1. Longer focal length for increased magnification
2. Easier to use3. Optics maintain alignment4. Sharper images5. No diffraction spikes
Pros and Cons of ReflectorsReflector Pros
1. No Chromatic Aberration2. More aperture for the $3. Less bulky4. Easier for ATM
Cassegrain Pros and ConsCassegrain Pros
1. Folded Light Path- Short but long focal length
Cassegrain Cons1. Dewing of Corrector Plate2. Cost3. Difficult to align optics
Alt-Az Most Commonly Used Cheaper
Choosing a ScopePrimary Use of Scope
Planetary- Long Focal Length Recommend Refractor
Astrophotography Refractor or Reflector Motorized Mount Ability to Autoguide