How to Buy a Telescope : Telescope Buying Guide: Focal Ratio & Focal Length

[SaturnAndItsRings]

@e3milios wrong

[imanoob4]

I want that Tele Vue

[GeorgeChar95]

@imanoob4 everyone wants it! But you can get less costly Eyepieces of the same quality and high field of view like the Celestron Ultima LX or the Skywatcher Super Wide Angle Panaview with 70 degrees FOV and 28mm Eye Relief pretty high and half the price of the Tele Vue. The only tele vue is really worth buying even with that price is the Ethos 110 FOV which is truely amazing.

[TheMarknz101]

amazing learn t a lot

[Jsmith858522]

Thank you guys for making this video series!

[Antardrews]

im a beginner and want to buy a telescope. i' ve been watching some telescopes and i liked the ''Orion ShortTube 80-A Refractor Telescope''. what i want is to look the moon and some other planets like jupiter, mars, venus, and saturn.

Would that telescope mach for me, or is there anotherone u could recomend me???

someone answer please

thanks

[carmilache]

i want to purchase a Seben Big Boss telescope,FL=1400mm, Ap=150mm, FR=f/9 and im not sure if its a good bet. Can you help pls?:) Much apreciated!

[Spraycando]

Er. Excuse me. 2nd 'scope. Maximum 45 x magnification with f/10 and 100mm aperture? Sorry? The only reason that "new" short focal length scopes have colour corrected objective lenses is because theres something wrong. IE: they're so fast they wont focus all colours of the spectrum to one point. Resulting in nasty halos around bright objects. If you can't get 25 x magnification per inch of aperture, don't bother. Fast 'scopes are crap. The "old boys" knew their stuff.

[BetaSagittarii]

@Spraycando Woah! I think you misunderstood! He is saying that an eyepiece will give different magnifications depending on the focal length of the telescope. As the first telescope is 540mm focal length, the equation is 540mm/22mm= 24.5x. The second telescope is 1,000mm/22mm=45.5x. In general, under average sky conditions, the average telescope can only achieve about 25x-30x per inch of aperture. So for the second telescope that equals about a max of 120x, beyond that, images will look smeared.

[muhammedmuhiddin]

so how abt money

[Bikoyski]

cool I want this on my Tiger tank

[travis199urkul]

i have the celestron powerseeker 50AZ

and do a show called Teliscope Time With Travis

[DIS848]

same here

[radioman970]

These are well done. Thanks for putting them on youtube. Cuts out a lot of confusion about telescopes. I still don't know what to get....but I'm a little less confused. Haha!

[Chrisjr2007]

(;

great