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Open Forum => Off-Topic => Topic started by: Rawrlolsauce! on October 28, 2012, 06:28:30 PM

Title: Is anyone here into telescopes?
Post by: Rawrlolsauce! on October 28, 2012, 06:28:30 PM

Is it common for telescopes to have an adjustable focal length? I've been looking online and I can't really find any with an adjustable focal length, but I know cameras have adjustable focal lengths.

Title: Re: Is anyone here into telescopes?
Post by: EmJayBee83 on October 28, 2012, 09:12:05 PM

The focal length of a traditional telescope is determined by the focal length of the eyepiece. Pretty much every telescope you can buy has different eyepieces that you can swap in and out. So in that sense, it is exceedingly common for telescopes to have adjustable focal lengths.