Classic refractors; visual observer, old school.
"Toto, I have a feeling we're not in Kansas anymore."
"You're not afraid of the dark, are you?" - Riddick "The best scientists are humble. They seek to understand, not to ensure their legacy, but merely to understand." - Mori
Quote: The general rule of thumb for daytime seeing is 25 to 30X per inch aperture.
Refractors Reflectors Two Cats A few eyepieces
Quote:Old 0.965 Japanese all metal barlows also work as they are single element, no cement.
Roberto Botero Kent, UK