How To Buy Your First Telescope Charlie Haffey 781-255-0229

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Presentation transcript:

How To Buy Your First Telescope Charlie Haffey

The Target User Child Adult Beginner Novice

What You Expect

What You Get

Types of Scopes Reflector Refractor

Reflector

Refractor

Types of Mounts Dobsonian Equatorial

Dobsonian Up and down Left and right Swift_Telescopes.htm

Equatorial mount Rotates parallel to Earth’s axis Easier tracking of objects

Magnification

Focal Length

Calculate Magnification Focal length of telescope Focal length of eyepiece 1000 mm 25 mm = 40

Magnification Limits 40x most common Increase magnification- decrease field of view decrease brightness Over 100x rarely used very difficult tracking

Image Brightness Small increase in mirror diameter Large increase in surface area  6 inch mirror = 28 in 2 area  8 inch mirror = 50 in 2 area

Mr. Haffey Recommends Six inch Dobsonian $259 & up

The cheapest, easiest and best way to improve your first telescope...

Zero magnification finder EZ Finder™ II Reflex Sight $34.95

Upside is up finder Right Angle Correct-Image Finder Scopes $ $79.95

Do Not Buy 750 power! From a deli With unanswered questions

Do Buy Largest opening you can afford Move & use with comfort Reputable source

Vendors Orion Telescopes Meade Telescopes Celestron Telescopes The Camera Company

After you buy your first telescope Contact Mr. Haffey First setup First use First light

Good Luck, Have Fun!