Telescope Buying Guide

Phoebe asked:


I have a Galileo FS-135DX Reflector and I want some new lenses. I have two lenses, galileo astroscopic 25mm and then a zoom lense that says F6.8mm and F16mm. This is like jiberish to me but i’ve been able to just put the lenses on the telescope and see the moon really close. I can see the craters and the beautiful surface. But i’d like to be able to see much more. If theres any other lenses anyone could suggest, I’d love to hear about them!

ahriik asked:


Whet are some good telescopes for beginners? I want to get into astronomy, so I believe a telescope is essential. What are some cheaper ones?

Anthony asked:


It’s a DS 2090 telescope, a refractor with 90mm of clear aperture and a focal length of 800mm and the remote is missing so you can’t automatically go to a celestial object. Everything else is there. Also I have never sold or bought anything used so please make some suggestions.

Gregory Franklin asked:


How large a telescope and how much might it cost?

Allen 850 asked:


I have a JVC Everio GZ-MS120BU digital video camera, and since the meteor shower is tonight, I would like to record it. I have a couple Celestron telescope lenses for my telescope, but I was wondering if I could rig something up, like taping the telescope lens to the end of my video camera so I can see the meteors more clearly. Would that work?

Abeer s asked:


I have plenty of time, so I decided to build a telescope. I want to attach a camera to it to take photos. Please tell me what is the best source or book or site to do this.
please help I really want this.

Ian S asked:


How do you calculate FWHM of the primary beam of the telescope from wavelength and dish size?

I assume there is some simple formula, and it goes something like Field of View ~= Lamda/Dish Diameter.

Ian S asked:


How do you calculate FWHM of the primary beam of the telescope from wavelength and dish size?

I assume there is some simple formula, and it goes something like Field of View ~= Lamda/Dish Diameter.

Freezing Temperature asked:


Could an amateur portable telescope do it? Do you need a camera run overnight to see a nebula?
Seen with color.

Jack asked:


I want to conect my cannon camera to my telescope. It is a 58 mm camera and I was wondering where I could get an adapter to put on my telescope for a reasonable price. how do I hook the camera up to the telescope. Do I conect it to the eyepeice somehow?