Quote:I would like to get a better scope in the future, probably one with a faster aperture so I can see dimmer things better... However I am looking for the best bang for the buck. Dobsonians seem to be very cost-effective, but they have alt-azimuth mounts. Can these be used for astrophotography??? When I think about it, I guess the object being imaged would rotate if a base like this is used, so I don't really know...Also, do Barlow Lenses affect the quality of images? I see a lot of people using them in various places, but noone seems to address a negative point to them...
Takahashi SKY90 , Vixen SP
Istar 127mm f/8 Achro , HEQ5 on TV Gibralter
C9.25 XLT carbon fiber , HEQ5 .
Quote:I live in the Southern Hemisphere so am familiar with the magelenic clouds and Omega Centauri. There is also the globular cluster Tuc47 near the small magelenic cloud. I have a 120mm achro which will resolve the individual stars in the Omega Centauri cluster, even in the suburbs, However Tuc47 looks like a fuzzy ball in the suburbs but if I go to the country my scope will even resolve the individual stars in Tuc47. Dark skies really make the difference to what you can see. Even though you won't see all of the LMC with your scope, it does contain the Tarantula nebula. It is fainter than M42. There are some nice open clusters between the Southern Cross and False Cross and also don't forget the famous Eta Carina Nebula.
Quote:It's better consider astrophotography and visual observation as two rather separate hobbies, particularly when one is first starting out.
Shane in black-zone New Mexico
Kmart 40mm-Thanks Mom|Jason60mm-Thanks Dad|C80SS-Thanks Wife|C90|C102|C6XLT|AP130EDFGT|C-11XLT EQ-2|EQ-3|CG5GT|Mach 1 & Eagle "For once you have tasted flight, you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return".-Leonardo da Vinci "We're all in the gutter, but some of us are looking at the stars."-Oscar Wilde ~RIP Dad, you were my best friend...Godspeed!~
Quote:In general, a faster scope is not able to see dimmer objects than a slower scope. A fast scope is capable of a wider field of view for a given aperture as well as possibly a brighter image.
Quote:This makes total sense, I didn't really think about it this way, it was just a misconception because I always see people with reflectors for DSO observations, but it makes sense now.
8" f6 dob
Quote:Anyway, I asked about the scope for astrophotography is that I tend to try out a bunch of different hobbies, and I rather have a more versatile equipment (even if its expensive), because this way I guess I can get a better scope for both photography and observing. But this is for a future...I guess I'll end up getting a SCT with a good mount that would be great for everything I intend to do eventually, even though I could get a better Dob, but it wouldn't be able to take good pictures... I often see a bunch of different people using Celestrons C14... They are a bit expensive but not much out of my price range. Are there any other good options? Thank you once more!