Havnt used the filters yet, mostly because there is no instruction manual or guide on their best uses. The lenses are good quality and the strongest lens coupled with the 2x magnifier attachment allowed me to see saturn very well. So well in fact that I had to constantly adjust my telescope in order to keep it in view. For its price, it is a good beginner kit to add to your telescope but for more advanced desires, I would spend the additional money on more expensive lenses.
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