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Eyepieces are a source of endless talk in this and othe forums. The issue to be aware of is that more "magnification" is not always a good thing. If you have used your scope for any astro work yet and tried the 2 eyepices there is a noticeable difference between the 2.
The main reasons for this are twofold. Firstly, and this applies to all eyepiece designs, the image created by the scope and eyepiece is affected by atmospheric factors which are also magnified by the higher power. Also for dim objects you are spreading the available light over a larger area effectively dimming it.
Secondly, there are factors relating to the eyepiece design. The ones supplied with your scope are plossls and one of the design characteristics of these is that higher power ones have a much smaller exit pupil and eyerelief. Without getting technical this makes them harder to use as you need to position your eye much closer to the eyepiece and more precisely, and that can be uncomfortable. More advanced designs can improve this situation, but that can cost $$$!
My advice would be, use the scope a bit and play with the 2 pieces that came with it and see how you go before spending too many dollars. And above all, don't be tempted by those "kits" you see around the place as they are often overpriced and of dubious value.
Cheers
Malcolm
Last edited by barx1963; 30-05-2013 at 10:32 AM.
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