Finderscope field of view?

[Odd Dob]

Ok, really stupid question time. How do I find out what the field of view of my finderscope is? It's a Skywatcher 9x50 Right-Angled, Erecting Finderscope. I want to know so I can configure CdC to display it accurately on some charts.

I'm sure the answer is obvious but I can't seem to find it...

[GazOC]

I think the FOV is 5 degrees.

[acey]

I asked the same stupid question a while back and it looks like it's somewhere between 5 and 5.5 degrees:

http://stargazerslounge.com/equipment-help/97786-finder-fov.html

You could measure it directly by timing the transit of a star across the full field of view:

http://www.umanitoba.ca/faculties/science/astronomy/cbrown/16207/fov.htm

If you try it then let us know how you get on!

[Odd Dob]

Aha! Cheers. I might give that a go... Thanks for the help.

[themos]

Point it at the end of your garden and measure distances with a tape measure?

[acey]

Hmm, didn't think of that! Fancy doing it?

[themos]

No but thinking again, I'd just point it at my bookcase!