i bought an orion 8" reflecting scope last year from fleabay (wanted to get a meade etx actually)i finally got it out and viewed the (half) moon and the experience was great apart from the fact that aligning the telescope with anything in particular was quiet difficult
anyhow, i read somewhere that i would need a collimating lens (?) though the images of the moon tonight were very crisp and clear, i have three lenses that came with the scope along with a barlow 2X lens and some filters..
here is the scope..

there is a kind of small scope that runs through the main axis of the tripod and there are some marks on the glass that seem like star charts, can i assume that these should line up with the north star and others?
hmmm thinking about it i have some astronomy books somewhere that i bought a few years ago, i m,ay have to dig them out and try to learn about setting the scope up
regards, john








