2007-12-24 17:21:32 · 4 answers · asked by Jansen J 4 in Science & Mathematics ➔ Astronomy & Space
Nice, I wanna take this time to observe mars as close as it gets.
2007-12-25 06:07:31 · update #1
Certainly you can. I just think of the filter as part of the eyepiece.
2007-12-25 04:50:46 · answer #1 · answered by Larry454 7 · 0⤊ 0⤋
Hi. Sure. Most Barlows (the quality ones do not have a negative impact on image quality) have a thread into which you can screw a filter. If not, almost all lenses do. Try to use a relatively low power Barlow of 1.8 or so magnification.
2007-12-24 18:39:45 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋
using a Barlow will make the image seem fuzzy because it magnifies by three the power of the lens. the more powerfull the lens the smaller the hole that lets the lite in. If you ad a filter you are limiting even more lite to the lens and this may blur the object further, Although a Barlow is a nice tool I prefer to view most objects with my med. lens and if its the moon and its hurting my eyes, well then a filter may be appropriate. however you can block out moon lite a little with a cover with a hole in it. I made one as a kid out of an old oatmeal lid and cut the hole to about half the size of my scope tube. Have fun!!
2007-12-24 17:32:48 · answer #3 · answered by Manwae 3 · 0⤊ 1⤋
Sure.
Cirric: the things you put in the telescope to change magnifications are always called eyepieces, not "lenses."
2007-12-25 03:15:40 · answer #4 · answered by GeoffG 7 · 0⤊ 0⤋