Jump to content


Photo

ES 80mm apo question *DELETED*

  • Please log in to reply
12 replies to this topic

#1 derekdann30

derekdann30

    Sputnik

  • -----
  • Posts: 41
  • Joined: 26 Feb 2010
  • Loc: Elizabeth City, North Carolina

Posted 25 March 2013 - 10:03 PM

Post deleted by derekdann30

#2 dennilfloss

dennilfloss

    Messenger

  • -----
  • Posts: 409
  • Joined: 06 Jan 2013
  • Loc: Ottawa, Canada

Posted 26 March 2013 - 12:37 AM

This is also the scope I'm eyeing as my grab n' go. Here's a nice review of it:

http://www.cloudynig...hp?item_id=2022

This guy posts pics taken with an ES 80ED triplet, admittedly of DSOs rather than planets but it can resolve quite a bit of detail in a globular cluster.

http://wondroussky.b...a-centauri.html

#3 derekdann30

derekdann30

    Sputnik

  • -----
  • Posts: 41
  • Joined: 26 Feb 2010
  • Loc: Elizabeth City, North Carolina

Posted 26 March 2013 - 05:24 AM

Awesome review. I think this little beast is just what I need to compliment my dob. Thanks for posting

#4 lisure

lisure

    Lift Off

  • -----
  • Posts: 8
  • Joined: 11 Nov 2011
  • Loc: beijing

Posted 26 March 2013 - 05:30 AM

I have a 80480apo£¬and three eps(TVzoom3-6,ES11,TVPL32)
for moon it's every good,but on jupiter it's not good,because it's too small ,the details too less!
Open cluster and double stars also every good on observed!
my english every poor,sorry!

#5 derekdann30

derekdann30

    Sputnik

  • -----
  • Posts: 41
  • Joined: 26 Feb 2010
  • Loc: Elizabeth City, North Carolina

Posted 26 March 2013 - 05:45 AM

Would 160x be pushing the limits on this scope even though it is a triplet?

#6 Illinois

Illinois

    Vanguard

  • -----
  • Posts: 2117
  • Joined: 18 Dec 2006
  • Loc: near Dixon, Illinois USA

Posted 26 March 2013 - 07:17 AM

You can see Juipter's belts and 4 moons as low as 50 power but not much details. About 180 power that You might see faint little details show up if you keep look at juipter for a long time! You might see tiny black dot on Juipter from moon's shadow if the time is right. Saturn's ring and Moon are nice!

#7 EdTheEdge

EdTheEdge

    Surveyor 1

  • -----
  • Posts: 1570
  • Joined: 10 Apr 2009
  • Loc: Lomita, CA

Posted 26 March 2013 - 09:02 AM

I use mine all the time with my ES 82° eyepieces. IMO they are a perfect match for this scope. I have never tried going beyond the 102X that the 4.7mm allows for. I am completely satisfied observing Jupiter at that magnification.

#8 GOLGO13

GOLGO13

    Gemini

  • *****
  • Posts: 3031
  • Joined: 05 Nov 2005
  • Loc: St. Louis area

Posted 26 March 2013 - 09:11 AM

A good 80mm apo should be fine with 150x. I've had 180x look pretty sharp in both my 80mm and 85mm apos.

Just have some expectation management. Your 8 inch will be better for most objects (including planets). But, these little scopes really can pack a punch. Plus, they have pretty quick cool down times. Not sure about triplets though...they may require a little extra cool down.

On the moon you could push the scope even more.

I feel a small grab and go is perfect complements to larger dobs. For a quick session, waiting for the dob to cool down, or traveling...

I have no experience with this particular scope though.

#9 Binojunky

Binojunky

    Mercury-Atlas

  • *****
  • Posts: 2740
  • Joined: 25 Dec 2010

Posted 26 March 2013 - 09:47 AM

I had the Meade version of this scope,what a letdown that was, lovely mechanics but above x100 the image just fell apart, a bad one? maybe,DA.

#10 derekdann30

derekdann30

    Sputnik

  • -----
  • Posts: 41
  • Joined: 26 Feb 2010
  • Loc: Elizabeth City, North Carolina

Posted 26 March 2013 - 10:47 AM

I heard the Meade version wasn't all that great

#11 derekdann30

derekdann30

    Sputnik

  • -----
  • Posts: 41
  • Joined: 26 Feb 2010
  • Loc: Elizabeth City, North Carolina

Posted 26 March 2013 - 10:54 AM

I use mine all the time with my ES 82° eyepieces. IMO they are a perfect match for this scope. I have never tried going beyond the 102X that the 4.7mm allows for. I am completely satisfied observing Jupiter at that magnification.

Yeah I don't like using ridiculously high mag on the planets unless the seeing is superd. On most nights I'm fine with anything between 125 and 150x with the dob. The lower power views seem to be a bit more pleasing

#12 derekdann30

derekdann30

    Sputnik

  • -----
  • Posts: 41
  • Joined: 26 Feb 2010
  • Loc: Elizabeth City, North Carolina

Posted 26 March 2013 - 11:05 AM

Unless the pictures our deceiving on the ES website, this little scope looks well built. According to the specifications on the web site, it says it can go up to 315X. A bit outragous considering 50-60X per inch is more practical. Is this something that can be expected from a triplet this size?

#13 Rich V.

Rich V.

    Skylab

  • *****
  • Posts: 4014
  • Joined: 02 Jan 2005
  • Loc: Lake Tahoe area, Nevada, USA

Posted 26 March 2013 - 11:44 AM

I have no experience with the ES but I do have an 80/480 triplet from another source.

It seems to me the claim of 315x is way into the rediculous range; consider that 160x gives you only a .5mm exit pupil. 315x would be .25mm; that's terribly dim and I can't imagine it wouldn't be into the "empty magnification" range.

I use my N3-6 zoom for most of my lunar/planetary viewing and 160x is pushing the limits most of the time. Under exceptional conditions I have used my scope at ~240x with good results on Mars.

Between 120x-160x is sufficient to easily watch Jovian shadow transits and see the GRS if the seeing allows. I can switch to a 21E and get 23x and a 4.4° FOV so a little 80/480 can be a lot of fun as a compliment to larger scopes.

Rich






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics