I'm just wondering what I'm able to see with my Sky-Watcher Black Diamond 5 inch Reflector, using stock 10mm and 25mm eye pieces ? The best I've been able to see in the city and that's in the suburbs, is Jupiter's clouds and it's moons. On a really dark night, you swear you can almost see one of it's moons with the naked eye. I'm still trying to see if I can see a Nebula with it, but I havn't had much luck finding the exact spot of one. I think I've found the one the Orion's Constellation, but I've been waiting for the moon to reduce in brightness as a full moon really lights up the sky. I know once your far enough away from the city lights the sky darkens up quite nicely. I've been 30 minutes outside the city limits and the difference is like night and day. I can actually make out the milky way in the sky, it's faint and it looks like a cloud but it's there. That is of course with just the naked eye. I hasn't had a chance to go back out on a moonless night, now that I've learned more of what I'm looking at and where to find stuff. When in doubt, I have google sky map on my phone that helps me.
I'm also thinking of upgrading to Antares 10mm Super Plossl and getting a Antares 2x Barlow Lens. I've also considered a Nebula Filter but I know nothing about filters so I wouldn't know if it's a good thing to get or bad for a beginner. Thanks!