Results 1 to 7 of 7
  1. #1
    loveparis's Avatar
    loveparis is offline White Dwarf
    Points: 6,967, Level: 58
    Level completed: 9%, Points required for next Level: 183
    Overall activity: 0%
    Achievements:
    First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!2 Posts Achievement1000 Days+ Registered Achievement!
    Join Date
    Sep 2009
    Location
    Crespian, France
    Posts
    15
    Points
    6,967
    Level
    58
    Thanks
    0
    Thanked 3x 3 Posts

    Default Celestron Omni 120 XLT or C8-N



    Hi to all and thanks for a great forum,

    I am about to purchase my first telescope although I am reasonably familiar with astronomy concepts.

    I want to share the wonders of the night sky with my 6 year old son and discover new unseen things for myself. Eventually I would like to get into some basic astrophotography as a personal reward rather than looking to recreate the magnificent pictures we can find online and in magazines.

    I live out of town and the skies remain pretty dark although I do have the village's only streetlamp by my front gate.

    I appreciate that often personal preference makes the difference, but would like some advice.

    Here are my objectives:
    1) Be able to view planets and DSO's fairly clearly
    2) Be easy to use and set up (if my son gets into it, the scope would eventually pass onto him)
    3) Have the capability to upgrade to a motorised system and then a Goto system in the future.
    4) Portability could be a decider although I don't plan to travel with the scope regularly.
    5) As above, can be used for astrophotography at a later date.

    I have seen the following at what appears to be excellent prices:
    1) Celestron Omni SLT 120 Refractor on CG4 mount at £259
    2) Celestron C8-N (not goto) on CG5 mount at £289

    I have been advised a couple of alternatives:
    Celestron NexStar 130 SLT Goto at £279
    or a SkyWatcher 127 Skymax SynScan Goto at £349

    I appreciate that each one meets differents needs, but as an overall beginner scope that will last well into the amateur ranks and can offer a degree (now or future) of automation and portability, which would you regard as the best investment.
    Many Thanks

  2. The Following User Says Thank You to loveparis For This Useful Post:

    admin (09-22-2009)

  3. #2
    admin's Avatar
    admin is offline Administrator
    Points: 6,989,798, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 5.0%
    Achievements:
    First 1000 Experience PointsGot three Friends20+ Friends Achievement!5+ Referrals Achievement!100+ Threads Achievement!
    Join Date
    Mar 2007
    Location
    Sydney, Australia
    Posts
    13,481
    Points
    6,989,798
    Level
    100
    Thanks
    18,563
    Thanked 7,915x 3,807 Posts
    Blog Entries
    2

    Default

    Hi welcome to the forums!

    For me it is an easy answer with experience with both newtonians like the C8 and a refractor like the 120 XLT, i would go easily with the C8-N

    Many reasons including a few here:

    1) the 120 XLT from what I see is not apochromatic and you will get some colours although can be reduced with a filter it is still there on brighter objects
    2) the 120 XLT cannot really compare to the C8 in light gathering even though the C8 has some obstruction in the middle it will pick up much more light

    Both would be similar to setup, both also an upgrade to goto/motors and astrophography. The mount will be important but if you get the CG5 it will be better, do not get the CG4 for either telescope. Also I recommend spending a bit more money now to get goto (which always includes the motor). Why? well you get many features included for less than the price of the upgrade separately:

    1) motors so no problems moving a large scope to view objects
    2) you can track objects easily so they don't move quickly away from view while you try to see them. Its very frustrating when you are looking at something exciting and it keeps moving away. Similar to viewing with binoculars on something that is moving but in the telescope it can be worse.
    3) astrophotography ready when you would like to use it
    4) go-to is great for beginners that are willing to take some time to setup the telescope. Once they do, it is very easy to see many things. Its very frustrating for many as beginners to not be able to see any objects and Goto can help there a lot if setup properly


    If portability is an issue, you can look into Schmidt Cassegrains (SC) or Maksukov Cassegrains (Mak) which are much bit smaller but more expensive. The upside is they can sometimes use a smaller mount like a CG4 for say a 6" SC/Mak

    let us know how the decision goes or what you are looking at!
    cheers
    Name: Gus OTAs: ED 100 PRO refractor, Orion ST80 (not the CF), 8" Dob stuck in Canada Mounts:HEQ5PRO Synscan mount, Manfrotto Tripod CAMS: Guidecam Philips SPC900 webcams (4), Canon unmodded-450D DSLR

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    |
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    | My Astronomy Blog

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


  4. #3
    loveparis's Avatar
    loveparis is offline White Dwarf
    Points: 6,967, Level: 58
    Level completed: 9%, Points required for next Level: 183
    Overall activity: 0%
    Achievements:
    First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!2 Posts Achievement1000 Days+ Registered Achievement!
    Join Date
    Sep 2009
    Location
    Crespian, France
    Posts
    15
    Points
    6,967
    Level
    58
    Thanks
    0
    Thanked 3x 3 Posts

    Default

    Hi, thanks for the really helpful feedback, I was leaning towards the C8-N. Getting the Goto version at the beginning would be ideal, but the investment is considerably more: £729 v £289 and I couldn't justify that level of expense in one go.
    Maybe I should consider the Skymax 127 Goto first as a starter scope, then invest the £700+ at a later date?
    Either way, thanks I have eliminated the XLT 120 from the option list !!

  5. #4
    admin's Avatar
    admin is offline Administrator
    Points: 6,989,798, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 5.0%
    Achievements:
    First 1000 Experience PointsGot three Friends20+ Friends Achievement!5+ Referrals Achievement!100+ Threads Achievement!
    Join Date
    Mar 2007
    Location
    Sydney, Australia
    Posts
    13,481
    Points
    6,989,798
    Level
    100
    Thanks
    18,563
    Thanked 7,915x 3,807 Posts
    Blog Entries
    2

    Default

    Hi! np
    £729 vs £289? That is too much of a difference for goto! Let me know a few more stores and prices and I can try to recommend a better deal. It shouldn't be that big of a difference. You could buy a mount separately - a CG5 goto or a EQ5 pro/goto would be great with that scope. Can you find a pricing for those mounts and a pricing for the OTA (optical telescope)?

    cheers
    Name: Gus OTAs: ED 100 PRO refractor, Orion ST80 (not the CF), 8" Dob stuck in Canada Mounts:HEQ5PRO Synscan mount, Manfrotto Tripod CAMS: Guidecam Philips SPC900 webcams (4), Canon unmodded-450D DSLR

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    |
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    | My Astronomy Blog

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


  6. #5
    sxinias's Avatar
    sxinias is offline Super Moderator
    Points: 323,522, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 31.0%
    Achievements:
    Got three Friends20+ Friends Achievement!First 1000 Experience Points5+ Referrals Achievement!100+ Threads Achievement!
    Awards:
    Attachments Award
    Join Date
    Nov 2008
    Location
    Marathon Greece summer Tampa Florida winter
    Posts
    17,799
    Points
    323,522
    Level
    100
    Thanks
    4,582
    Thanked 10,194x 6,475 Posts
    Blog Entries
    4

    Default

    Welcome to Astronomy Forum. You have an interesting list of choices and requirements.

    Of the four scopes you listed the larger aperture of the C8N will clearly provide the better viewing and have the longest legs regarding future usage. To add to admin's recommendation, its CG5 mount is very sturdy. The C8N/CG5 is the only scope on your list compatible with your astrophotography requirement. Unlike the CG4 mount on the 120XLT, the CG5 mount is easily upgradable to a GOTO mount with the iOptron NOVA GOTO kit. As far as I know, no GOTO kits are available for the CG4, only drive motors.

    The C8N/CG5 weighs 31 KG while the 120XLT is 21 KG. I have a C6S/CG5 that weighs 23 KG. Regarding portability between the C8N or the 120XLT, I don't think the extra 10 kg of the C8N is much of a factor as neither one is something that you will pick up fully assembled and carry very far. I'd say there is little difference between them. Both will require two or more trips. Neither will be something a small boy can handle.

    The choice between the two GOTO telescopes that you mentioned is more difficult as both scopes provide similar performance, portability, and ease of use. If the £70 difference in price is not the deciding factor, it sort of boils down to personal perference between the a 130 mm Newtonian with its faster optics or a 127 mm MAK with its slower optics. Their GOTO mounts are similar in design, construction and capacity (come from the same factory and use the same basic design). The Celestron has a far easier setup and alignment process and the SkyWatcher has more objects in its data base (The Skywatcher does not have a time chip which can be annoying at times). The tripods of both are marginal and neither are suitable for serious astrophotography. Both are about 11 kg, are very portable and easy for a young boy to take out at night, setup, and use without Dad around to help.

    Which should you get? That's tough to say. Only you really know how much weight to give each of the requirements you have on your list.

    Good Luck in your choice

    Last edited by sxinias; 09-22-2009 at 05:57 PM. Reason: spelling
    SXINIAS

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.



    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ZEQ25 mount;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    SynScan AZ GOTO Mount;

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ST-80A 80mm Refractor (OTA); Meade
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    203mm SCT (OTA);
    Meade DS2090AT 90mm Refractor; Meade 2045LX3 102mm SCT;

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    4 SE 102mm MAK; Celestron Advanced Series C6S (XLT) 150mm SCT
    with an iOptron GOTO Drive

    My Photos:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  7. #6
    AdamDietrick's Avatar
    AdamDietrick is offline Bright Giants
    Points: 9,099, Level: 66
    Level completed: 17%, Points required for next Level: 251
    Overall activity: 0%
    Achievements:
    10 Days registered200+ Posts Achievement!First 1000 Experience Points365 Days+ Registered Achievement!Got three Friends
    Join Date
    Aug 2009
    Location
    Lakota, Iowa
    Posts
    244
    Points
    9,099
    Level
    66
    Thanks
    15
    Thanked 46x 39 Posts

    Default

    Be sure to check out telescopes.com as well, they have free shipping.
    Observing the universe with a Zhumell Z10 Deluxe
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  8. #7
    loveparis's Avatar
    loveparis is offline White Dwarf
    Points: 6,967, Level: 58
    Level completed: 9%, Points required for next Level: 183
    Overall activity: 0%
    Achievements:
    First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!2 Posts Achievement1000 Days+ Registered Achievement!
    Join Date
    Sep 2009
    Location
    Crespian, France
    Posts
    15
    Points
    6,967
    Level
    58
    Thanks
    0
    Thanked 3x 3 Posts

    Default

    Thanks for all the advice.
    I think I'll seriously look at the C8-N on a CG5 mount and then look at upgrading later with the iOptron goto system. I am having trouble contacting First Light Optics about this scope.
    I've looked at telescopes.com and they look competitive but are US based, I'm in France. I believe that Celestron, Meade and Sky-watcher prevent vendors from shipping internationally due to warranty agreements, although I may suspect that this is more to do with the vast price differences between US and europe.

 

 

Similar Threads

  1. Anyone got a Celestron Omni XLT 150? What do you think of them?
    By VentureStar in forum Reflector Telescope Forum
    Replies: 9
    Last Post: 05-09-2012, 06:37 AM
  2. Celestron Omni 102ED f/8.8
    By astronut in forum Celestron Telescope Forums
    Replies: 0
    Last Post: 07-29-2010, 08:15 PM
  3. Celestron Omni XLT 120 Vs Sky-Watcher Evo 120
    By Timmo65 in forum Refractor Telescopes Forum
    Replies: 3
    Last Post: 02-17-2010, 01:48 PM
  4. Celestron Omni XLT 102
    By jeebusroxors in forum Celestron Telescope Forums
    Replies: 1
    Last Post: 01-22-2010, 05:31 PM
  5. Celestron omni xlt 120 refractor
    By mark84 in forum Astronomy Beginners Forum
    Replies: 7
    Last Post: 11-19-2009, 05:47 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 07:59 AM.