I wonder if the SR4 is a Barlow lens?
With a 10mm lens and at a focal length of 1000mm I can achieve 100x.
With a 5mm lens I can get 200x.
With a lens diameter of 4.5" it'll max out at around 225x.
The smaller the lens the less you'll actually get to see but more
magnified it'll be.
Per 1" of mirror you'll get a max of about 50x.
I'm not sure what kind of scope you have but make sure you're looking
at the right place.
With a 20mm lens I could still make out the rings (barely) (that's about 50x).

On Mon, Mar 3, 2008 at 11:21 AM, G Money <[EMAIL PROTECTED]> wrote:
> It's about the size of a pencil point, maybe two, in mine....that's with the
>  6mm lense. With the SR4, it's a little bit bigger, but I can't get it
>  focused very well. I don't know any of those other measurements offhand, but
>  with Ian's calculator it looks like i should be able to calculate my
>  magnification once i get home.
>
>  Should I be cleaning the lenses in the telescope, or on the eye piece? And
>  if so, how?
>
>
>
>  On Mon, Mar 3, 2008 at 11:15 AM, Greg Morphis <[EMAIL PROTECTED]> wrote:
>
>  > First off.. forget the 30x for a minute.
>  > What's the focal length of the telescope? What's the diameter of the
>  > mirror?
>  > For example I have a 4.5" telescope with a 1000mm focal length.
>  > Then we can work out what you need to see Saturn. Which you can see..
>  > it's beautiful. It's about as big as a pencil eraser through my
>  > telescope with a 6mm lens but still impressive
>  >
>  > On Mon, Mar 3, 2008 at 10:44 AM, G Money <[EMAIL PROTECTED]> wrote:
>  > > My wife bought me a telescope a few years ago, and I've been using it
>  > from
>  > >  time to time, usually just to look at the moon. Supposedly Saturn is
>  > >  currently at opposition, with it's rings visible if your telescope has
>  > a
>  > >  magnification of 30. I have no idea what that means. I found Saturn the
>  > >  other night, and it just looked like another star. How can I tell if my
>  > >  telescope has a magnification of 30??
>  > >
>  > >  My telescope came with 3 different eyepieces: One says 20H, one says
>  > 6M, the
>  > >  other says 4SR. I know that the lower the number, the higher the
>  > >  magnification...but beyond that, I have no idea what these numbers
>  > mean. Can
>  > >  anyone on here educate me?
>  > >
>  > >  If i wanted to get greater magnification, can I just buy an eyepiece?
>  > I'm
>  > >  sure there is a maximum magnification setting for my telescope, but how
>  > can
>  > >  I tell what that is?? I want to be able to see some planets.
>  > >
>  > >  TIA!
>  > >  BG
>  > >
>  > >  --
>  > >  My word's but a whisper
>  > >  Your deafness, a shout
>  > >
>  > >
>  > >
>  >
>  >
>
>  

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