View Single Post
  #6  
Old 16-01-2010, 01:00 AM
CarlJoseph (Carl)
Registered User

CarlJoseph is offline
 
Join Date: Dec 2009
Location: Dandenong Ranges
Posts: 265
Got home tonight from my first public viewing at my local club (MPAS). It was great! Two lovely folks collimated my scope for me which made a huge difference. I tried a few other eyepieces which was also very useful.

I would like to buy one new eyepiece which has a wider field of view. Something that will keep with me when I move to a more improved scope.

The problem is that I don't understand the math involved! I have a 4" newtonian with a 900mm focal length. I have read that my maximum magnification should be 4*50 = 200x.

So what range of EP mm should I be looking for? How does that part factor in?

Also, any thoughts on what a good wider FOV EP I should be looking at? I don't mind spending a couple hundred on an EP but prolly not any more than $200.

Cheers,
Af.
Reply With Quote