Jump to content


Photo

decisions decisions

  • Please log in to reply
46 replies to this topic

#26 phillip

phillip

    Viking 1

  • -----
  • Posts: 549
  • Joined: 26 Nov 2005
  • Loc: Sterling, Illinois

Posted 08 December 2012 - 10:29 AM

I have the XT8 and gives the starting aperture for decent viewing. But also enjoy using the portable goto scopes. The XT8I would make perhaps the better choice for you as all in one package, will at least put you in the area for easier locating. Abit pricy but the Celestron 8SE be a more accurate locator. As I have the XT8 went for the 6SE as near half the price.

Enjoy using the Sky Safari + absolutely a beauty at the scope, also alerts me on planets when GRS and Shadow transits on Jupiter, my favored.

Enjoy.

#27 Dave74

Dave74

    Mariner 2

  • *****
  • Posts: 254
  • Joined: 23 Oct 2012
  • Loc: Gelatinous, MA

Posted 08 December 2012 - 10:35 AM

That's a good choice. I think you'll enjoy it.

#28 BigC

BigC

    Gemini

  • *****
  • Posts: 3213
  • Joined: 29 Sep 2010
  • Loc: SE Indiana

Posted 08 December 2012 - 10:46 AM

I see there is a great deal on the Z8 right now with free shipping.That will certainly give you a very good start and actually many people never go beyond an 8" scope-the 8" SCT is very popular.

Enjoy your new scope!

#29 skybama

skybama

    Lift Off

  • -----
  • Posts: 7
  • Joined: 04 Dec 2012
  • Loc: North Alabama

Posted 09 December 2012 - 06:33 AM

Will the ES 14mm eyepiece be suitable for the Z8? Is there a better one?

What kind of filters should I invest in? Should I just get a complete set? Are some better than others?

I have Google Sky and SkEye on my android phone. I also have GoSkyWatchP and Planets on my iPad. I would like to get an astronomy program to install on my main PC in the house. Which one is best?

#30 TexasRed

TexasRed

    Viking 1

  • -----
  • Posts: 976
  • Joined: 17 May 2011
  • Loc: East Texas

Posted 09 December 2012 - 07:15 AM

If you don't have to keep your eyeglasses on when you observe, the ES 14mm is a great eyepiece!

I've bought a lot of filters, and the one that gets used the most and was actually worth what I spent on it (to me) is the Orion UltraBlock.

Download and install Stellarium. It's free.

#31 skybama

skybama

    Lift Off

  • -----
  • Posts: 7
  • Joined: 04 Dec 2012
  • Loc: North Alabama

Posted 09 December 2012 - 07:50 AM

Dob dust covers?

#32 panhard

panhard

    It's All Good

  • *****
  • Moderators
  • Posts: 13661
  • Joined: 20 Jan 2008
  • Loc: Markham Ontario Canada

Posted 09 December 2012 - 09:49 AM

Shower caps work nice.

#33 planet earth

planet earth

    Surveyor 1

  • ****-
  • Posts: 1725
  • Joined: 07 Sep 2010
  • Loc: Ontario Canada

Posted 09 December 2012 - 01:58 PM

I'd get the Z10 over the 8 inch, because of the extra light grasp about half a mag.
Forget the object locater. Spend the money you save on better eyepieces for the f5 (f5 has more coma then a f6) and a OIII or UHC filter.
A 8 inch isn't any sharper then a 10" unless the 10" is of poor quality. The 10" with it's better resolution will show finer detail on planets.
Sam

#34 kansas skies

kansas skies

    Messenger

  • -----
  • Posts: 422
  • Joined: 02 Dec 2012
  • Loc: Kansas, USA

Posted 09 December 2012 - 02:29 PM

All things considered, the 10" will show more. And, the object locator does seem a bit gimicky - after all, half the fun is in planning and then actually getting there. It would be nice for you to actually compare the 8" and 10" side-by-side to see how well they fit into your environment. If you have to carry it down 10 flights of stairs, or haul it in a small compact car to get to a dark observing site, these are considerations. If you can leave it setup just inside your sliding glass doors and then need to only move it a few feet to begin your observations, this is also a consideration. I would think that a small scope that gets used regularly would be better than a large scope that never makes it out under the stars.

#35 frito

frito

    Apollo

  • -----
  • Posts: 1183
  • Joined: 05 Oct 2012
  • Loc: Fremont, CA

Posted 09 December 2012 - 03:02 PM

Will the ES 14mm eyepiece be suitable for the Z8? Is there a better one?

What kind of filters should I invest in? Should I just get a complete set? Are some better than others?

I have Google Sky and SkEye on my android phone. I also have GoSkyWatchP and Planets on my iPad. I would like to get an astronomy program to install on my main PC in the house. Which one is best?


I used a friends 14mm ES 82* in my XT8 last night, i was comparing it to my 16mm Nagler Type 2. performance was very similar. in a 1200mm focal length scope its a good low to medium power eyepiece as it has about a 1 degree true field but considerably more magnification than a plossl of the same true field. a good example is the 25mm plossl is about the same true field but you can see much more detail in the 14/16mm 82 AFOV eyepieces.

on the filters honestly all you really need is a variable polarizing filter for the moon that way you can adjust how bright or dim it is depending on the phase. a UHC filter for nebula viewing at dark sites. light pollution filter possibly for the same purpose but in more light polluted areas. color filters are not all that useful for visual observing in my experience.

on the astronomy program side of things buy skysafari plus for either the android phone or your ipad, what ever device you think you'll use at the telescope more. if you had both android devices you would not have to make this choice because once you buy it on the play store you can install it on as many android devices you have linked to the google account. i have it on both my phone and tablet.

for the PC stellarium is a very nice free program.

#36 skybama

skybama

    Lift Off

  • -----
  • Posts: 7
  • Joined: 04 Dec 2012
  • Loc: North Alabama

Posted 10 December 2012 - 01:48 PM

Is the Zhumell 2" 2x ED barlow decent?

So why wouldn't I buy the ES 11mm instead of the 14mm? It's $10 cheaper and better magnification. Or the 4.7mm or 6.7mm for that matter.

#37 MikeBOKC

MikeBOKC

    Aurora

  • *****
  • Posts: 4513
  • Joined: 10 May 2010
  • Loc: Oklahoma City, OK

Posted 10 December 2012 - 05:14 PM

Keep in mind that seeing does not often support high magnifications. When you push power too high under all but really great sky conditions, the image, especially on planets, gets mushy. The 11mm ES would likely be useful many nights, but the single digit eyepieces may just be too potent for most scopes on all but a few pristine occasions. Usually the best observing range for most scopes is from 120 to maybe 160-180x, so you csn calculate what focal length eyepieces would be most useful for your scope by dividing the focal length of various eyepieces into the focal lenght of your scope, which yields magnification.

#38 stargazer424

stargazer424

    Messenger

  • -----
  • Posts: 408
  • Joined: 03 Oct 2005
  • Loc: Central NJ

Posted 10 December 2012 - 05:23 PM

Is the Zhumell 2" 2x ED barlow decent?


I have the same question. I found this thread on it:
http://www.cloudynig.../Number/4506829

Someone in that post says "I actually never use it with 2" eyepieces...All Barlows tend to be tricky to use with long focal length eyepieces because of how much they play around with the eye relief."

Rhere is also this one for less $$: https://www.astronom...2-inch-eyepi...

#39 Billytk

Billytk

    Apollo

  • -----
  • Posts: 1342
  • Joined: 22 Apr 2012
  • Loc: Geneva, Fl.

Posted 10 December 2012 - 05:25 PM

Is the Zhumell 2" 2x ED barlow decent?

So why wouldn't I buy the ES 11mm instead of the 14mm? It's $10 cheaper and better magnification. Or the 4.7mm or 6.7mm for that matter.


Yes that barlow is good and will work well with your scope. Also the 14mm with the 2x barlow will give you a 7mm which will be a very good magnification to view planets with on most nights.

#40 skybama

skybama

    Lift Off

  • -----
  • Posts: 7
  • Joined: 04 Dec 2012
  • Loc: North Alabama

Posted 11 December 2012 - 05:59 AM

Ok, so it's a done deal.

Zhumell Z8 Dobsonian
Zhumell 2" 2x ED Barlow
Zhumell 1.25" See It All filter set
All that for $509

ES 14mm 82* Eyepiece (Xmas gift from wife)

Can't wait to get started. :jump:

#41 CosmoSat

CosmoSat

    Apollo

  • -----
  • Posts: 1272
  • Joined: 24 Jul 2009
  • Loc: India

Posted 11 December 2012 - 02:03 PM

You can save some more on the Barlow lens here.. 2X apochromatic ED Barlow for 2" eyepieces, with 1.25" adapter.

Clear Skies!

#42 Dave74

Dave74

    Mariner 2

  • *****
  • Posts: 254
  • Joined: 23 Oct 2012
  • Loc: Gelatinous, MA

Posted 11 December 2012 - 02:28 PM

That is a good price. I paid 60 about a month ago.

#43 jfaust75

jfaust75

    Viking 1

  • -----
  • Posts: 634
  • Joined: 04 Oct 2011
  • Loc: Central Florida

Posted 11 December 2012 - 06:11 PM

ive been looking at that one too. $58.90 with shipping isnt bad either

#44 CosmoSat

CosmoSat

    Apollo

  • -----
  • Posts: 1272
  • Joined: 24 Jul 2009
  • Loc: India

Posted 11 December 2012 - 07:36 PM

Woopsss...guess I overlooked the shipping part....1 buck difference then...just so used to free shipping at most places.. :p

#45 Dave74

Dave74

    Mariner 2

  • *****
  • Posts: 254
  • Joined: 23 Oct 2012
  • Loc: Gelatinous, MA

Posted 11 December 2012 - 07:38 PM

Right! Maybe the shipping isn't so free afterall.

#46 lamplight

lamplight

    Mercury-Atlas

  • *****
  • Posts: 2533
  • Joined: 18 Sep 2012
  • Loc: western MA, U.S.

Posted 12 December 2012 - 12:06 AM

Excellent ! Have fun and report back :)

#47 Achernar

Achernar

    Cosmos

  • *****
  • Posts: 9080
  • Joined: 25 Feb 2006
  • Loc: Mobile, Alabama, USA

Posted 12 December 2012 - 09:32 PM

True, but with a PUSH-TO Dob, you have the option of starhopping or using the DSC's.....I still star hop when I am under skies that are reasonably dark. It is a lot tougher to do with several hundred thousand streelights alone in the city of Mobile Alabama all around me.

Taras






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics