AstroMaster 130EQ telescope eyepieces 1.25"?

Question

My 130EQ has 1.25" and it came with a 10mm and 20mm eyepieces (they have 32.5 and 65 Times Magnification).

If i get a 40mm one, will that make the magnification bigger and is there any bigger ones. is there one that can go more than 300 Times? Thanks

Answer 1

First I'm sure the other answerer meant "in reflectors like your telescope..."  otherwise, he's right on.  Anyhow, the power of any telescope from a little toy from KMart to a catadioptic that would break the bank if I bought it, the power is determined by a simple formula--divide the focal length of the objective by the focal length of the eyepiece.

So, whatever the fl of the objective is, dividing by 40 instead of 10 or 20 will result in less magnification...you want a really short fl eyepiece to get more magnification, like maybe 5mm, which would give you 130x.

BUT, BIG BUT!!!, the 130EQ is a good, but small and light, telescope...too much mag will be not good!  The vibrations will be magnified along with the object.  I wouldn't go much more than 200x, and that's only when the sky is totally clear.

Good viewing!

Answer 2

according to the profile of this telescope, the highest magnification you can achieve with any clarity, is 150x. basically, this means if you get too powerful of an eyepiece, you won't get the sharp quality. in reflectors, like your telescope, this is usually because of the size of the primary mirror. if you want to get up to 300x, then you would need a better telescope. but yes, a 40mm eyepiece will give you some brighter, higher quality images. or atleast it should. i haven't used the eyepeice myself so i can't give you a review of the product, but if you email me the link i'd be happy to take a look at it for you. until i see the eyepiece your talking about myself, i can't give you much of an answer.

EDIT: sorry, i did mean to say "reflectors". busy day!

Answer 3

you already know that magnification is the focal length of the telesscope divided by the focal length of teh eyepiece so you know what a 40mm eyepiece will do and it's not what you apparently want to do.

i'd buy a barlow instead. this will double magnification and preserve eye relief. this telesscope will not support 300x magnification anyway - the optics aren't good enuf, and the mount is too wobbly. why do you want this?

Answer 4

to put it simply yes this will help i have a 40mm eyepiece and it helps me to see even greater details of jupiter what a beautiful sight it is and europa makes for great viewing this time of year (hint,hint)

Thanks For Reading

The Big B