I'm finally moving to a relatively decent location. Not the darkest skies, nor the clearest (Martha's Vineyard) but I've got a big field and unobstructed views right near my house, so I look forward to viewing a lot more.
So far, I've only owned one large scope---my first: a ~1988 Celestron cardboard tube 8" f6 Dob, single vane. It's functional though sometimes hard to collimate. And the mirror is getting a little dull.
Sadly I learned that my wife and I often like to look at planets, and tracking at high power is a royal pain in the arse. In fact--and this will be no surprise to anyone--ANY tracking is a pain if you're at the wrong angle. Also, I like my kids to look (or other slightly inexperienced friends) and they either bump the tube, try to move the tube and lose the object, or both.
OK... So I need a decent mount, with electric tracking. That's clear.
In terms of the OTA, I want a scope that will allow me to look at planets with high power, and without using 3mm eyepieces and barlows. I've gotten OK results with my 48" focal length dob; i can't see going a whole lot shorter than that; this seems to eliminate most of the short focal length apos. Of course (it's never easy) i _also_ would like to be able to use it to look at smaller deep sky objects, if possible. yes, I know I am asking for two different things. but I'm trying to figure out the 'ideal' focal length is. Even with a 6' scope, i'll be able to view the entire moon using a ~25mm eyepiece (since I can do that now with an 18mm and a 48" scope). Or am I calculating wrong?
OK, that's what I want. now here's what I'm thinking of getting:
I'm leaning heavily towards an Atlas or c6 mount. I don't especially mind the weight, as I don't plan to travel much with my scope. I'm _never_ going to do photo (or if I will i'll just upgrade then). I don't care about goto for now. And I want it to be solid at high mag. Finally, I want to be able to stick other scopes onto it, now or in the future, so I don't have to constantly switch mounts. I know I'd look funny with an 80mm on an Atlas, but I'd rather avoid spending more $$ on a separate mount. I can't afford a gm8. Sensible so far?
For an OTA, I'm really debating between two things: an Intes or Intes Micro maksutov, and a D&G refractor.
Price wise, a D&G 5" is $1600, 6" is $1900, in f12 or f15. The 6" f10 or f12 intes scopes are $1300; the Intes Micro 703 is $2100.
I can imagine the difference in portability, of course--a Mak wins, hands down. But how about cool down? How about viewing? Light transmission? I'm leaning towards the refractors (I am not going to search for a tiny violet fringe to complain about; not my style). I'm guessing that I'll still be able to use a long 2" eyepiece in the refractor to get lower mag, though maybe I'm wrong about that as well...?
i'm guessing there isn't really any mount savings either way. Maybe I could get a GP instead with a 6" mak, but it's not really any cheaper, and I know I don't want a cg5.
Help! Any comparisons or comments would be welcomed.
So far, I've only owned one large scope---my first: a ~1988 Celestron cardboard tube 8" f6 Dob, single vane. It's functional though sometimes hard to collimate. And the mirror is getting a little dull.
Sadly I learned that my wife and I often like to look at planets, and tracking at high power is a royal pain in the arse. In fact--and this will be no surprise to anyone--ANY tracking is a pain if you're at the wrong angle. Also, I like my kids to look (or other slightly inexperienced friends) and they either bump the tube, try to move the tube and lose the object, or both.
OK... So I need a decent mount, with electric tracking. That's clear.
In terms of the OTA, I want a scope that will allow me to look at planets with high power, and without using 3mm eyepieces and barlows. I've gotten OK results with my 48" focal length dob; i can't see going a whole lot shorter than that; this seems to eliminate most of the short focal length apos. Of course (it's never easy) i _also_ would like to be able to use it to look at smaller deep sky objects, if possible. yes, I know I am asking for two different things. but I'm trying to figure out the 'ideal' focal length is. Even with a 6' scope, i'll be able to view the entire moon using a ~25mm eyepiece (since I can do that now with an 18mm and a 48" scope). Or am I calculating wrong?
OK, that's what I want. now here's what I'm thinking of getting:
I'm leaning heavily towards an Atlas or c6 mount. I don't especially mind the weight, as I don't plan to travel much with my scope. I'm _never_ going to do photo (or if I will i'll just upgrade then). I don't care about goto for now. And I want it to be solid at high mag. Finally, I want to be able to stick other scopes onto it, now or in the future, so I don't have to constantly switch mounts. I know I'd look funny with an 80mm on an Atlas, but I'd rather avoid spending more $$ on a separate mount. I can't afford a gm8. Sensible so far?
For an OTA, I'm really debating between two things: an Intes or Intes Micro maksutov, and a D&G refractor.
Price wise, a D&G 5" is $1600, 6" is $1900, in f12 or f15. The 6" f10 or f12 intes scopes are $1300; the Intes Micro 703 is $2100.
I can imagine the difference in portability, of course--a Mak wins, hands down. But how about cool down? How about viewing? Light transmission? I'm leaning towards the refractors (I am not going to search for a tiny violet fringe to complain about; not my style). I'm guessing that I'll still be able to use a long 2" eyepiece in the refractor to get lower mag, though maybe I'm wrong about that as well...?
i'm guessing there isn't really any mount savings either way. Maybe I could get a GP instead with a 6" mak, but it's not really any cheaper, and I know I don't want a cg5.
Help! Any comparisons or comments would be welcomed.