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

2. The Target User
Child
Adult
Beginner
Novice

3. What You Expect

4. What You Get

5. Types of Scopes
Reflector
Refractor

6. Reflector

7. Refractor

8. Types of Mounts
Dobsonian
Equatorial

9. Dobsonian Up and down Left and right
Swift_Telescopes.htm

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

11. Magnification

12. Focal Length

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

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

15. Image Brightness
Small increase in mirror diameter Large increase in surface area
6 inch mirror = 28 in2 area
8 inch mirror = 50 in2 area

16. Mr. Haffey Recommends
Six inch
Dobsonian
$259 & up

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

18. Zero magnification finder
EZ Finder™ II
Reflex Sight
$34.95

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

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

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

22. Vendors Orion Telescopes www.telescope.com
Meade Telescopes
Celestron Telescopes
The Camera Company

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

24. Good Luck, Have Fun!