HDTutorial
EN
Astro Tutorial #1.5: Focal Length and Aperture

Playback starts YouTube’s embedded player (privacy-enhanced mode).

Astro Tutorial #1.5: Focal Length and Aperture

50,705 views January 26, 2020 12:11

Watch on YouTube
Channelcatchingphotons

Description from the creator

- - New version with enhanced audio quality: youtu.be/eQXigVT52Pw - -

Hey folks,

in this video we cover the defining properties of a scope.
We will discuss:
- Focal length
and
- Aperture
and what other properties derive from those two.

So what should a scope claim to catch your attention?
Why shouldn’t you buy a “300x magnification scope” for 20$? ;)

We will find answers to that and talk about
- optical resolution
- the field of view or
- the light gathering capabilities of scopes.
And then, if you are used to all of this terms, you can start to decide what scope might fit you best.

Clear skies and till next time!
Greetings
Chris


Hashtags:
#focal_length
#aperture
#FOV

About this tutorial

catchingphotons published this 12:11 video tutorial on January 26, 2020. It has been watched 50,705 times on YouTube.

Duration
12:11
Published
January 26, 2020
Views
50,705
Likes
1,930

Tags

Share

This tutorial in other languages