Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

General Astronomy >> Beginners Forum

Pages: 1 | 2 | 3 | (show all)
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
decisions decisions
      #5558952 - 12/07/12 10:05 AM

So I've finally decided to bite the bullet and get a telescope. I have read thru many threads here and gathered some very good info. I have also talked with a couple of coworkers who own telescopes. So it comes down to these choices....

Zhumell Z8 or Z10 Dobsonian

or

Orion XT8i

My coworkers recommend the Zhumell, looks like the Orion is the recommended beginner unit here.

So, what's a newb to do? I have been told there may be some disadvantage to the 10 inch Zhumell because of the large mirror size. The 8 inch is a sharper image.

I really like the object locator on the Orion.

So which is the better unit?

Accessories, Accessories, Accessories. Which telescope has a wider array of available accessories?

My goal is to buy the telescope and probably have my wife buy me one awesome accessory for xmas (maybe a barlow). What would be the ultimate eyepiece to compliment each telescope?

Thanks for any input

Edited by skybama (12/07/12 10:24 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Don Trinko
Carpal Tunnel
*****

Reged: 07/05/09

Loc: Ohio
Re: decisions decisions new [Re: skybama]
      #5558983 - 12/07/12 10:22 AM

both will be very similar in quality. Made in China, decent mirror but not great. Some get lucky and get a good mirror and some get a not so good mirror.(doesn't help much does it) Don T.

Post Extras: Print Post   Remind Me!   Notify Moderator  
CJK
professor emeritus


Reged: 12/05/12

Loc: Northeast TN
Re: decisions decisions new [Re: skybama]
      #5559004 - 12/07/12 10:28 AM

Sorry, I can give you no advice at all, but I wanted to say welcome from one newbie to another! Good luck with your quest!

-- Chris


Post Extras: Print Post   Remind Me!   Notify Moderator  
csrlice12
Postmaster
*****

Reged: 05/22/12

Loc: Denver, CO
Re: decisions decisions new [Re: skybama]
      #5559005 - 12/07/12 10:28 AM

Depends. How well do you know the night sky? Is finding an object fun, or do you prefer to view? If you don't know the sky, want to view, and time is limited, go for the 8XTi. The XTi will help you learn the sky (but you got to pay attention) and will help to identify objects if you do find something in view. If having "help" finding things is not your bag, and the "hunt" excites you as much as the viewing, then go for the 10" and add some setting circles to it (total cost about $50 + your labor) and some sky charts and you're ready to go. One word, however. Depending on your finances, the 10" is a much faster scope then the 8", and is less forgiving of cheaper eyepieces. The 8" will give you some good views with moderately priced eyepieces (plossels will work with either). The ES68* and 82* series eyepieces work great in either scope. I recommend the 24mm and the 11mm 82* as these are both fantastic eyepieces for their price (24mm~$200, 11mm $99)

Post Extras: Print Post   Remind Me!   Notify Moderator  
Jerry-rigged
sage


Reged: 01/30/12

Loc: Coastal Texas.
Re: decisions decisions new [Re: skybama]
      #5559018 - 12/07/12 10:37 AM

Quote:

So I've finally decided to bite the bullet and get a telescope. I have read thru many threads here and gathered some very good info. I have also talked with a couple of coworkers who own telescopes. So it comes down to these choices....

Zhumell Z8 or Z10 Dobsonian

or

Orion XT8i

My coworkers recommend the Zhumell, looks like the Orion is the recommended beginner unit here.

So, what's a newb to do? I have been told there may be some disadvantage to the 10 inch Zhumell because of the large mirror size. The 8 inch is a sharper image.

I really like the object locator on the Orion.

So which is the better unit?

Accessories, Accessories, Accessories. Which telescope has a wider array of available accessories?

My goal is to buy the telescope and probably have my wife buy me one awesome accessory for xams (maybe a barlow). What would be the ultimate eyepiece to compliment each telescope?

Thanks for any input




The Zhumell gets you a better "kit" out of the box, 2-speed focuser, 2" widefield eyepiece, mirror fan, better finder etc... However with the Orion you will see more stuff starting out, not because the scope is better, but just because you will find it quicker with the Intilliscope COL. Myself, I don't have a COL, and mostly don't miss it. Most nights I enjoy star-hopping, but every now and again, I just want to look at stuff... With the Z10, your only option would be "manual" setting circles, either home-made or something like the "Halo" sold at Optics-planet. (BTW, their Apertura scopes are clones of the Zhumell)

As for the 10 vs 8, the 10 is "faster" (lower f/#) so some less expensive eyepieces will show more 'coma' - streaking of stars near the edge of the field. My 10" is faster than the zhumell (f4.5 vs f4.9) and I don't find the coma to be an issue - I see it, but it does not bother me. Other do mind it, so personal preference rules here. Other than coma, the 8" will not be any "clearer" with the same eyepieces. Plus the 10" will pull more light, making those faint-fuzzes a bit more brighter/clearer.

Accessories - both scopes will take almost any accessory that the other will take - most are not brand specific.

IMHO, you decision should be between the Z10 and XT8i.


Post Extras: Print Post   Remind Me!   Notify Moderator  
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
Re: decisions decisions new [Re: csrlice12]
      #5559021 - 12/07/12 10:41 AM

Quote:

Depends. How well do you know the night sky? Is finding an object fun, or do you prefer to view? If you don't know the sky, want to view, and time is limited, go for the 8XTi. The XTi will help you learn the sky (but you got to pay attention) and will help to identify objects if you do find something in view. If having "help" finding things is not your bag, and the "hunt" excites you as much as the viewing, then go for the 10" and add some setting circles to it (total cost about $50 + your labor) and some sky charts and you're ready to go. One word, however. Depending on your finances, the 10" is a much faster scope then the 8", and is less forgiving of cheaper eyepieces. The 8" will give you some good views with moderately priced eyepieces (plossels will work with either). The ES68* and 82* series eyepieces work great in either scope. I recommend the 24mm and the 11mm 82* as these are both fantastic eyepieces for their price (24mm~$200, 11mm $99)




I don't know the sky at all except that in mid-summer the big dipper is right out my back door. I live in North Alabama just outside Huntsville so I think light pollution is minimal. I would prefer to view rather than hunt but I also prefer quality over budget. My coworker recommended the ES14mm 82* eyepiece. The Zhumell comes with a laser collimator which is a plus.


Post Extras: Print Post   Remind Me!   Notify Moderator  
mjs
sage


Reged: 02/26/04

Loc: Northern Indiana
Re: decisions decisions new [Re: skybama]
      #5559037 - 12/07/12 10:50 AM

Portability and usability wise, it's tough to best an 8" dob. I have a Z8 and am very pleased with it; the Orion scope should compare closely in quality and it has the Intelliscope feature you think you want, so I think you ought to go with that.

10" is better than 8" but also bulkier and heavier for not that much more aperture.

Mile


Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave74
sage
*****

Reged: 10/23/12

Loc: Gelatinous, MA
Re: decisions decisions new [Re: Don Trinko]
      #5559053 - 12/07/12 10:56 AM

Quote:

Some get lucky and get a good mirror and some get a not so good mirror.(doesn't help much does it) Don T.




After months of research before purchasing and the time since, this is the first I've heard of GSO mirror quality being hit or miss. I guess I must be one of the lucky ones, because my views have been great.


Post Extras: Print Post   Remind Me!   Notify Moderator  
BoriSpider
Carpal Tunnel


Reged: 08/10/04

Loc: S.W.FLA
Re: decisions decisions new [Re: Dave74]
      #5559079 - 12/07/12 11:10 AM

Hi, and welcome to CN.
The XTi version is great to have because you can use it,
or turn it off and practice your star-hopping.

All-in-all they're all good dobs, get the deal that best
suits you. Oh, and consider used equipment for bigger savings.


Post Extras: Print Post   Remind Me!   Notify Moderator  
frito
Pooh-Bah


Reged: 10/05/12

Loc: Fremont, CA
Re: decisions decisions new [Re: mjs]
      #5559080 - 12/07/12 11:11 AM

10's are not *much* better than 8's as far as light gathering goes. its not a large difference. same with their resolution and the resolution could be effected by mirror quality as well so thats another variable. it's one reason why i'm extremely reluctant to "upgrade" to a 10" from my 8" all i'm getting is 50% more light gathering and say slightly higher resolution but with added size, weight and a faster mirror and that also lends itself to be harder to make good quality and as they are mass produced its not out of the question that they could be more likely worse quality than the F/6 8" mass produced mirrors.

i've also determined this because quite a few people i know in my club have 10" Orion and GSO scopes and i have yet to see an object they could see and i could not in my 8" and objects in general don't look much if any brighter or detailed than they do in my 8. once you start getting into the 12" + size range however the difference is much more visible and that is why i have determined if i buy a bigger light bucket its going to be a 12" or larger.

anyways done ranting for now, OP buy what you want to buy. all the scopes you mentioned are great first scopes and will serve you well. don't worry your self with the laser collimator esp if you end up looking harder at the 8" scopes . they are slow enough scopes at F/5.9 they don't require or even really need it. i'm still using a collimation cap and don't really even care to buy anything fancier. i'd rather put that money into eyepieces or gas. the intelliscope is a nice feature but you will still need to learn the stars a bit so you can align it properly. the good thing about them though is if you wish to not use it there is nothing stopping you from doing so.


Post Extras: Print Post   Remind Me!   Notify Moderator  
jfaust75
professor emeritus


Reged: 10/04/11

Loc: Central Florida
Re: decisions decisions new [Re: Dave74]
      #5559082 - 12/07/12 11:12 AM

mine too........with the guarantee you get on any of these brand new scopes i wouldnt factor that in at all(if its bad you can get replaced but i think that is few and far between)

Id vote for the XTi because you said you dont know the sky and are more interested in viewing than hunting......the nice thing about the intelliscope is after you learn where something is,or if you just want to hunt you can use it without the "help".

8" is perfect for a beginer also, its big enough to show you lots, but not too big and the 8" is "easier" on eyepieces(as in you can get away with cheaper eyepieces and still have great views)


Post Extras: Print Post   Remind Me!   Notify Moderator  
jfaust75
professor emeritus


Reged: 10/04/11

Loc: Central Florida
Re: decisions decisions new [Re: Dave74]
      #5559090 - 12/07/12 11:16 AM

Quote:

Quote:

Some get lucky and get a good mirror and some get a not so good mirror.(doesn't help much does it) Don T.




After months of research before purchasing and the time since, this is the first I've heard of GSO mirror quality being hit or miss. I guess I must be one of the lucky ones, because my views have been great.




the " mine too" comment was aimed at this........i thought id be next response but two snuck in before me.....lol


Post Extras: Print Post   Remind Me!   Notify Moderator  
MikeBOKC
Post Laureate
*****

Reged: 05/10/10

Loc: Oklahoma City, OK
Re: decisions decisions new [Re: skybama]
      #5559138 - 12/07/12 11:43 AM

If you don't know the sky at all, the Intelliscope would be a huge plus, but the fullOrion go to and tracking suite on the XXg 8 and 10 inch Dobs would be even better. Might consider them as an option.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Billytk
Pooh-Bah


Reged: 04/22/12

Loc: Lake Mary, Fl.
Re: decisions decisions new [Re: MikeBOKC]
      #5559234 - 12/07/12 12:38 PM

Get the Orion XT8I you won't regret it.

Post Extras: Print Post   Remind Me!   Notify Moderator  
SteveG
Post Laureate
*****

Reged: 09/27/06

Loc: Seattle, WA
Re: decisions decisions new [Re: Billytk]
      #5559279 - 12/07/12 01:13 PM

I've had an XT Orion dob and currently have an Astro Tech 8" dob (same as Zhumell). The Zhumell (Or AT) design for the dob base is much better than the Orion in my opinion. The balancing altitude bearing system on the Zhumell is worlds beyond the stiff spring used on the Orion. The Zhumell has a very nice lazy susan bearing on the azimuth - the Orion uses just plastic pads if I'm not mistaken. The Zhumell comes with better accessories too. If you do go with the Zhumell, please consider getting it from our sponsor:
https://www.astronomics.com/astro-tech-dobsonian-reflector-telescopes_c3.aspx


Post Extras: Print Post   Remind Me!   Notify Moderator  
BigC
Carpal Tunnel
*****

Reged: 09/29/10

Loc: SE Indiana
Re: decisions decisions new [Re: skybama]
      #5559726 - 12/07/12 06:10 PM

The 10" gathers ONLY 55% more light and has ONLY 20% more resolution so I just don't know why anyone would want the bigger scope!And it is a whole $100 more money.(Tongue firmly in cheek!!!)

If you want to see the most objects,thw faintest objects then of course you want the bigger scope.Aperture rules,all else being equal.



I have owned and used a variety of non-goto Dobs:a Galileo 80mm, a Bushnell 4.5,Starblast 4.5,Bushnell Ares 6,Orion XT 8 classic, Z10,and Z12. EVERY step up in aperture reveals more.

Get the biggest scope you are comfortable handling.

I think the Zhumells come with a azimuth circle on the base(my Z10 had one;my Z12 was found baseless and price discounted ) and a Jon mentioned in another thread you may buy a digital level from Sears (go online they have a sale now).The digital level will give you an elevation angle.If you use the free program Stellarium or some others then you can find objects by moving the scope to the corresponding AZ and EL numbers as given by the computer.

Thanks to Jon's tip ,my digital level is on order because I opted to upgrade to one with a built-in laser pointer and built-in calculator of angular differences (about $45).Its magnetic base should grab the steel tube of the Z12.Even if one's Dob has no azimuth circle it really shouldn't be hard to add one.


Post Extras: Print Post   Remind Me!   Notify Moderator  
BigC
Carpal Tunnel
*****

Reged: 09/29/10

Loc: SE Indiana
Re: decisions decisions new [Re: BigC]
      #5559745 - 12/07/12 06:19 PM

Definitely get the 2" Barlow as your first accesory.The 2" Barlow should come with a 2" to 1.25" adapter -Zhumell's does and all others I have viewed online but check to be sure.The 2" size will allow you to increase the power of th big eyepieces and still be useful with the smaller 1.25" but a 1.25" barlow restricts you to that size.I like to use a Celestron 2" E-lux in the 2" Barlow for nice medium power views.Pop a 2" 40 or 50mm plossl without barlow in the focuser for the "big picture".

Post Extras: Print Post   Remind Me!   Notify Moderator  
frito
Pooh-Bah


Reged: 10/05/12

Loc: Fremont, CA
Re: decisions decisions new [Re: BigC]
      #5559829 - 12/07/12 07:04 PM

Quote:

The 10" gathers ONLY 55% more light and has ONLY 20% more resolution so I just don't know why anyone would want the bigger scope!And it is a whole $100 more money.(Tongue firmly in cheek!!!)

If you want to see the most objects,the faintest objects then of course you want the bigger scope.Aperture rules,all else being equal.





I don't disagree with you. i was just stating the facts. once you get past 8" it takes larger and larger increases in aperture to double the light gathering, this in turn means the difference in what one can see in an 8 vs a 10" scope is not as large as one might expect. in my experience and i'm not sure maybe i just got a good mirror in my XT8 but i can't see much if any difference between it and other folk's 10" scopes all being used at the same time at the same place.

now other peoples 12" on through 22" dob's i've viewed things in before do show large changes in the detail seen. the nicer ones like the starmasters and obsessions i've looked through show amazing amounts of detail.

Edited by frito (12/07/12 07:05 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Gary Riley
sage


Reged: 12/01/11

Loc: White Bluff, TN
Re: decisions decisions new [Re: SteveG]
      #5559839 - 12/07/12 07:13 PM

An 8 inch dob will show you a tremendous amount of night sky objects. It would be very portable and easy to setup. The Zhumell (Apertura/Astro-Tech) and Orion are all decent quality scopes for the price.

If you are just starting out then you might want to consider the Orion XT8i. I don't own one but if I had it to do over I would have probably chosen one with the Intelliscope Object Locator to help save some time in locating objects quicker, especially if you live in a fairly light polluted area. But even with the object locator you really should work at becoming real familiar with the night sky.

According to Orion's site the XT8i comes with an 9x50 RACI finder scope which is good. Also it comes with two plossl eyepieces: 10mm and 25mm which should be fair eyepieces starting out.

Whether you purchase an Orion, Zhumell, etc. you will still need to consider adding some of these to your equipment list: Cheshire sight-tube collimating tool for aligning your two mirrors; 2x shorty style Barlow lens for doubling the power of your eyepieces (1.25 inch Orion Shorty Barlow or the GSO 2 inch with the 1.25 inch adapter); 1.25 inch variable polarizing Moon filter; 1.25 inch narrowband filter for viewing certain types of nebulae (Orion Ultrablock or something like the Baader UHC-S, or Lumicon, etc.).

You will probably want to look at getting at least one better quality eyepiece beyond what comes with the scope. The 25mm eyepiece that comes with the XTi will be ok as your low power finder eyepiece to start out with. The 10mm will probably have a fairly small eye relief. You may wish to consider something in the 68-82 degree and with larger eye relief such as around 15-20mm range such as the Baader Hyperions, Orion Stratus (both offer 68 degree FOV and 20mm E.R.) or maybe the Explore Scientific 82 degree eyepieces an eyepiece in the 10mm-17mm range for medium/high powers.

And of course decent star charts (S&T Pocket Sky Atlas) for example and or books such as Turn Left at Orion, Illustrated Guide to Astronomical Wonders, The Nightsky Observer's Guide vol. 1 & 2, etc. Of course there is computer astronomy freeware such as Stellarium and Sky Safari that you can purchase for your smartphone.

Any of those scopes you listed would be good.

Good luck and enjoy!
Gary


Post Extras: Print Post   Remind Me!   Notify Moderator  
Achernar
Postmaster
*****

Reged: 02/25/06

Loc: Mobile, Alabama, USA
Re: decisions decisions new [Re: skybama]
      #5559846 - 12/07/12 07:24 PM

If you do not need glasses and do not mind the relatively short eye-relief, the ES 82 degree eyepieces are exellent for deep sky objects. They also do well on the planets too, but there is some distortion and lateral color near the edge of the field of view. I have all of them except for the 30mm model, they work very well when used with my 10 and 15-inch F/4.5 Dobs, which are tough on eyepieces. A laser collimator is not however what I recommend for a collimation tool, unless you pay the bucks for a good one. They must be collimated to be of any use, if they are not your telesope will be way out of collimation. A sight tube and Cheshire eyepiece is simple and easy to use, and very accurate if your primary mirror has a center dot on it. Most commerical telescopes come with one. For now, a Telrad teamed up with a 50mm finder will help you bag those objects, and later you can put digital setting circles on the telescope. I use them on my 10 and 15-inch Dobs, once initialized they make locating objects much easier, especially from suburban or urban areas.

Taras


Post Extras: Print Post   Remind Me!   Notify Moderator  
GeneT
Ely Kid
*****

Reged: 11/07/08

Loc: South Texas
Re: decisions decisions new [Re: skybama]
      #5559983 - 12/07/12 09:20 PM

If of equal quality in mirror figure, there will not be a sharper image in an eight vs. a 10. The 8 is a nice sized Dob, but I have found that the 10 is not all that much more difficult to haul and handle than an 8. I recommend you visit a star party held by your local astronomy club to note the differences. Eight and 10 inch Dobs are very popular sizes and should be readily available.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave74
sage
*****

Reged: 10/23/12

Loc: Gelatinous, MA
Re: decisions decisions new [Re: Achernar]
      #5560145 - 12/07/12 11:20 PM

Also, an adjustable chair.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Saneless
member


Reged: 12/03/12

Re: decisions decisions new [Re: Achernar]
      #5560253 - 12/08/12 12:45 AM

I felt like there was no rush in finding the objects in the sky. I wanted this to be a hobby that was interesting, rewarding, and actually built a skill all while making me familiar with my surroundings.

Much like I feel I have absolutely no idea what the layout of a city is like if I stick to GPS, I didn't want that to happen with the sky. Soo, I felt like it wasn't necessary. Everything that's in the sky will stay in the sky, and it's up to me to build my skill to earn the right to see it. I wanted a challenge everytime I stepped outside. What would an intelliscope do for me? So I can just buzz through all the objects in the sky. Big whoop. I really just didn't see the point.

Aside from that, I didn't feel like it was worth the $300 premium for the intelliscope version.

If in the end I regret it, I can always get another scope like a go-to. But I wanted my beginner scope something that taught me to appreciate finding things on my own. I'll never forget the first time I went through all the hard work to find andromeda. It made the fairly unimpressive image actually very satisfying.

Edited by Saneless (12/08/12 12:47 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
rforrester
journeyman


Reged: 12/08/12

Loc: Birmingham, al
Re: decisions decisions new [Re: skybama]
      #5560407 - 12/08/12 04:42 AM

Hi Skybama,
I am guessing you are from Alabama. If so what part? I live in a small city north west of Birmingham.


Post Extras: Print Post   Remind Me!   Notify Moderator  
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
Re: decisions decisions new [Re: rforrester]
      #5560468 - 12/08/12 07:30 AM

Quote:

Hi Skybama,
I am guessing you are from Alabama. If so what part? I live in a small city north west of Birmingham.




I'm just north of Huntsville.

Thanks for all the suggestions. This has been a fairly difficult decision because i tend to jump into things head first and buy the best equipment available. But, all things considered, I think I am going with the Z8. It is very afforable right now and I can always upgrade later. The Intelliscope would certainly be nice but I think the Z8 will force me to "learn" the sky.


Post Extras: Print Post   Remind Me!   Notify Moderator  
phillip
professor emeritus


Reged: 11/26/05

Loc: Sterling, Illinois
Re: decisions decisions new [Re: Achernar]
      #5560634 - 12/08/12 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.

Edited by phillip (12/08/12 10:38 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave74
sage
*****

Reged: 10/23/12

Loc: Gelatinous, MA
Re: decisions decisions new [Re: phillip]
      #5560641 - 12/08/12 10:35 AM

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

Post Extras: Print Post   Remind Me!   Notify Moderator  
BigC
Carpal Tunnel
*****

Reged: 09/29/10

Loc: SE Indiana
Re: decisions decisions new [Re: skybama]
      #5560664 - 12/08/12 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!


Post Extras: Print Post   Remind Me!   Notify Moderator  
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
Re: decisions decisions new [Re: BigC]
      #5561917 - 12/09/12 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?

Edited by skybama (12/09/12 06:34 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
TexasRed
scholastic sledgehammer


Reged: 05/17/11

Loc: East Texas
Re: decisions decisions new [Re: skybama]
      #5561936 - 12/09/12 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.


Post Extras: Print Post   Remind Me!   Notify Moderator  
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
Re: decisions decisions new [Re: TexasRed]
      #5561952 - 12/09/12 07:50 AM

Dob dust covers?

Post Extras: Print Post   Remind Me!   Notify Moderator  
panhard
It's All Good
*****

Reged: 01/20/08

Loc: Markham Ontario Canada
Re: decisions decisions new [Re: skybama]
      #5562086 - 12/09/12 09:49 AM

Shower caps work nice.

Post Extras: Print Post   Remind Me!   Notify Moderator  
planet earth
Carpal Tunnel
****

Reged: 09/07/10

Loc: Ontario Canada
Re: decisions decisions new [Re: skybama]
      #5562512 - 12/09/12 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


Post Extras: Print Post   Remind Me!   Notify Moderator  
kansas skies
sage


Reged: 12/02/12

Loc: Kansas, USA
Re: decisions decisions new [Re: planet earth]
      #5562566 - 12/09/12 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.

Post Extras: Print Post   Remind Me!   Notify Moderator  
frito
Pooh-Bah


Reged: 10/05/12

Loc: Fremont, CA
Re: decisions decisions new [Re: skybama]
      #5562607 - 12/09/12 03:02 PM

Quote:

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.

Edited by frito (12/09/12 03:04 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
Re: decisions decisions new [Re: frito]
      #5564224 - 12/10/12 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.


Post Extras: Print Post   Remind Me!   Notify Moderator  
MikeBOKC
Post Laureate
*****

Reged: 05/10/10

Loc: Oklahoma City, OK
Re: decisions decisions new [Re: skybama]
      #5564537 - 12/10/12 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.

Post Extras: Print Post   Remind Me!   Notify Moderator  
stargazer424
sage


Reged: 10/03/05

Loc: Central NJ
Re: decisions decisions new [Re: skybama]
      #5564559 - 12/10/12 05:23 PM

Quote:

Is the Zhumell 2" 2x ED barlow decent?




I have the same question. I found this thread on it:
http://www.cloudynights.com/ubbthreads/showflat.php/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.astronomics.com/astro-tech-2x-apochromatic-ed-barlow-2-inch-eyepi...

Edited by stargazer424 (12/10/12 05:28 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Billytk
Pooh-Bah


Reged: 04/22/12

Loc: Lake Mary, Fl.
Re: decisions decisions new [Re: skybama]
      #5564564 - 12/10/12 05:25 PM

Quote:

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.


Post Extras: Print Post   Remind Me!   Notify Moderator  
skybama
journeyman


Reged: 12/04/12

Loc: North Alabama
Re: decisions decisions new [Re: Billytk]
      #5565426 - 12/11/12 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.


Post Extras: Print Post   Remind Me!   Notify Moderator  
CosmoSat
Pooh-Bah


Reged: 07/24/09

Loc: India
Re: decisions decisions new [Re: skybama]
      #5566012 - 12/11/12 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!


Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave74
sage
*****

Reged: 10/23/12

Loc: Gelatinous, MA
Re: decisions decisions new [Re: CosmoSat]
      #5566052 - 12/11/12 02:28 PM

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

Post Extras: Print Post   Remind Me!   Notify Moderator  
jfaust75
professor emeritus


Reged: 10/04/11

Loc: Central Florida
Re: decisions decisions new [Re: Dave74]
      #5566391 - 12/11/12 06:11 PM

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

Post Extras: Print Post   Remind Me!   Notify Moderator  
CosmoSat
Pooh-Bah


Reged: 07/24/09

Loc: India
Re: decisions decisions new [Re: jfaust75]
      #5566484 - 12/11/12 07:36 PM

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

Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave74
sage
*****

Reged: 10/23/12

Loc: Gelatinous, MA
Re: decisions decisions new [Re: CosmoSat]
      #5566488 - 12/11/12 07:38 PM

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

Post Extras: Print Post   Remind Me!   Notify Moderator  
lamplight
Carpal Tunnel
*****

Reged: 09/18/12

Loc: western MA, U.S.
Re: decisions decisions new [Re: skybama]
      #5566827 - 12/12/12 12:06 AM

Excellent ! Have fun and report back

Post Extras: Print Post   Remind Me!   Notify Moderator  
Achernar
Postmaster
*****

Reged: 02/25/06

Loc: Mobile, Alabama, USA
Re: decisions decisions new [Re: Saneless]
      #5568322 - 12/12/12 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


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | (show all)


Extra information
16 registered and 28 anonymous users are browsing this forum.

Moderator:  WOBentley, kkokkolis, Chuck Hards 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 1437

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics