What to put on top of the ED80

Striker (Tony) · #1 09-12-2005, 05:58 PM

Guys and Girls,

I want to put a guide scope on top of the ED80...but I was thinking of getting a WO 80ED short tube so atleast then I dont double up on focal length.

Having a 600mm with a 480mm on top sounds good.

I would like to have the choice of using both scopes for guiding and imaging.

Any other recomendations...maybe even a small Mak??????

I dont want anything big.

Your recomendations please.....please be realistic.

To go on this set up.

mick pinner · #2 09-12-2005, 06:04 PM

l've got a Zenithstar 80 for sale.

Lee · #3 09-12-2005, 06:05 PM

Hey, this is the same setup I want to buy when I get home next year - nice to see it all set up! I was thinking I would put an illuminated 1* finder of sorts on top....

Striker (Tony) · #4 09-12-2005, 06:09 PM

I know you do Mick....but I do want the 2" dielectric diagonal and need a set of losmandy guide rings to sit on the losmandy dovetail plate.

Otherwise I would definetly consider it.

avandonk · #5 09-12-2005, 06:47 PM

I have seen people use one of those 500mm F8 mirror lens as a guide scope as they are compact and light, one bolt attachment (get one with a tripod leg) and minimal flexure.You can get a new one on Ebay for less than an achromat.Even less second hand. Aperture is equivalent to about 70mm.

Bert

ving (David) · #6 09-12-2005, 06:52 PM

seen little 90mm maks on ebay... would they do it?

atalas · #7 09-12-2005, 06:55 PM

Tony,go the WO 105 ED Triplet ! and an ED80

Dennis · #8 09-12-2005, 06:56 PM

Be careful with any catadioptric 'scope for guiding - I hear they can suffer from mirror shift. This can cause guiding errors when the auto-guider on the guidescope chases the star, making the stars in imaging telescope elongated.

Cheers

Dennis

Striker (Tony) · #9 09-12-2005, 07:03 PM

I am really considering the WO80 480mm.

Thanks Louie....but I dont have that kind of cash...anyway I want a laptop as well.

Very true about the Cat scope...thanks Dennis

[1ponders] (Paul) · #10 09-12-2005, 08:39 PM

I blame me for this new desire for purchases. You liked that little carton refractor for guiding last weekend, didn't you Tony

Except for the awkward siting postion

beren · #11 09-12-2005, 09:22 PM

http://www.atscope.com.au/specials.html

Striker (Tony) · #12 09-12-2005, 10:08 PM

Thanks Stuart,

I have been looking at this for the last couple of days...but I would rather spend some of that money on a laptop...not only that...I would have to change all my current rings and plates to accomidate the bigger scope under the 80ed instead on top.

Yes I blame you Paul.

P.S I have the C11 pointed at Orion as we speak.....giving the G11 its first go at imaging tonight on the G11.

janoskiss (Steve H) · #13 09-12-2005, 10:17 PM

Quote:

Originally Posted by Striker

What to put on top of the ED80?

A cherry?

Suggestions to put an 80mm scope as guide scope on an 80mm scope just don't make sense to me. Unless you get another ED80 and make an ED80 binocular.

avandonk · #14 09-12-2005, 10:28 PM

Just realized Striker.Did you mean for autoguiding or manual?

Bert

Striker (Tony) · #15 09-12-2005, 10:39 PM

autoguiding.....Bert

Once I get my laptop

avandonk · #16 09-12-2005, 10:46 PM

I use a 600mm F5 achromat for autoguiding with a focal reducer which drops it to 300mm at F2.5.I can always find a guidestar with the toucam as I have it magnetically mounted for easy lateral movement.I use this for the ED 80 and the Canon 300mm. Can post pic if you want it.

Bert