Hi All,
Can someone tell me when you would use a barlow? Is it simply to just double your magnification. When the magnification is doubled is the image quality diminished. I guess the latter question is dependant on the quality of the barlow and eyepeice.
Is a barlow more geared to planetary viewing or its just as versatile when veiwing DSOs ?
Lastly, what is the best barlow diameter to buy 2 inch or 1.25 or would you need both. Bit confused given 2 inch eyepieces seem more favorable.
Sorry if this has been re-hashed.
