Support Astromart! | Log In | Help
Astronomy NewsTelescope ClassifiedsTelescope AuctionsTelescope Articles & ArticlesTelescope Articles & ReviewsTelescope and Astronomy ForumsAstronomy Events Calendar
Review Categories
Search Reviews
Submit Review

User Name:

Password:

Save Login
 
New to Astromart?
Register an account...

Terms of Service
Privacy Policy
Help & FAQ
Astronomy Links
User Profiles
Top Users List
Sponsors
Supporters
RSS Feeds

Home > Reviews > Eyepieces > Other > A Eyepiece Calculator on Steroids

A Eyepiece Calculator on Steroids
By Samuel Roa - 4/29/2009

This tool is comprised ot two downloadable documents:

1) Excel worksheet. It has two spreadsheets, "calculations" (you enter data here) and "practical help" (step by step practical help).
2) Word document with theory behind the methods.



With these, you can accurately determine:

a) Eyepiece Focal Length (2 different methods)
a') Deviation from stated focal length for each method.
b) Scope Focal Length
c) Scope AFOV without eyepiece
d) Scope Mag. without eyepiece
e) Eyepiece AFOV
f) Eyepiece TFOV
g) Optical train Mag. at short distance (indoors)
h) Optical train Mag. at infinite (normal usage)

Download Section:
Excel file link:
http://www.divshare.com/download/7204330-51a

Word file link:
http://www.divshare.com/download/7204337-518

del.icio.us   Digg it   Reddit   Twitter   MySpace   Stumbleupon  

Funding Member
Funding Member
Telescopes, Astronomy,
Binoculars


Advanced Search...

All times are in (GMT-8:00) Pacific Standard Time Zone  
Astronomy News | Telecope Classifieds | Telescope Auctions | Telescope Reviews | Telescopes | Telescope and Astronomy Forums | My Account | Help | RSS