what ep?

[BIG BEN]

just looking to by a high powerd ep, for about $100 or under. i have a 8'' skywatcher goto dob 1200mm f/6. im after an ep i can use alot or most of the time, not just when theres perfect seeing, so what type of power? 4mm 300x would i need excellant seeing for 300x(would i use it much or would the seeing never really be good enough?) or should i go more 6mm 200x?

[Esseth (Alan)]

I would be coming down even further in the 12mm-18mm range and then if needed grab a decent x2 barlow to give you a 6mm-9mm.

High powers tend to be more for planet/moon viewing when the seeing does need to be steady.

[ballaratdragons (Ken)]

Ben,
in an 1200mm f6 dob you really don't want to go any faster than a 9mm EP.

At a stretch and with extremely fantastic seeing you may be able to use a 7mm but those times come once a decade.

A good range is 9mm, 12mm, 25mm and a 30mm.
The 30mm preferably in 2"

[BIG BEN]

yeah ive got a 25 and 10mm supper plossl mc 52 afov wich came with the scope just after something bit higher power and quality for planetery viewing, dont were glases and it is goto.

Originally Posted by ballaratdragons

Ben,
in an 1200mm f6 dob you really don't want to go any faster than a 9mm EP.

At a stretch and with extremely fantastic seeing you may be able to use a 7mm but those times come once a decade.

A good range is 9mm, 12mm, 25mm and a 30mm.
The 30mm preferably in 2"

[ballaratdragons (Ken)]

OK, if you want to go fairly close up for Planetary try a 9mm with good quality Barlow or Powermate