Questions tagged [refractor-telescope]

Questions about telescopes with lenses as their main optical component.

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Can the “haze” of a mirror telescope be quantified?

When reading Why was StDr56 discovered only now? and its answers and comments, I realized that refractor telescopes, and in particular the Dragonfly Telephoto Array are a great tool to find nebula and ...
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Equipment question

I'm looking to get some optical equipment that will be used for both terrestrial and astronomical viewing (ratio 70/30). It will also have to be portable to a degree although I realise that with a ...
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Methods for testing a refracting telescope lens

I have an old (nearly 50 years old)alt-azimuth three-inch (7.6cm) refracting telescope that someone else made. They ground the lens, created the cylindrical body and added a rack and pinion style ...