Go Back   IceInSpace > Equipment > Equipment Discussions
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #21  
Old 12-06-2008, 10:58 PM
Ian Robinson
Registered User

Ian Robinson is offline
 
Join Date: Jan 2007
Location: Gateshead
Posts: 2,205
Quote:
Originally Posted by Omaroo View Post
Was that you in there today when I was there Brent? (Chris with the G11)
Big mistake , visiting the telescope shop . Too many expensive and very tempting goodies and there are salespeople there too who want you to walk out with something and smaller bank account.

Keep in mind that a dedicated CCD camera is not going to be useable for happy snaps and you'll pay a lot of money to get a dedicated CCD device with the same number of pixcels as you will get relatively cheaply with a 40D , which can be used in your day to day photography too.
Reply With Quote
  #22  
Old 12-06-2008, 11:20 PM
toyos
Registered User

toyos is offline
 
Join Date: Apr 2008
Location: Sydney, Australia
Posts: 112
Wouldn't a quality apo refractor give you better results compared to any reflectors? If everything else was the same including the mount & the imager's skills
Reply With Quote
  #23  
Old 12-06-2008, 11:24 PM
Ian Robinson
Registered User

Ian Robinson is offline
 
Join Date: Jan 2007
Location: Gateshead
Posts: 2,205
Quote:
Originally Posted by toyos View Post
Wouldn't a quality apo refractor give you better results compared to any reflectors? If everything else was the same including the mount & the imager's skills
Sure - I'd love a 10" f4.7 high quality ED APO .... .... I don't think anyone here will ever be able to afford one , I certainly wont (unless I inherit or win a very large amount of money) so , a 10" f4.7 Newtonian with a comma corrector/ field flattener will suffice.
I can go deeper than any APO's I'll ever be able to buy in the forseeable future can go and resolve more.
Reply With Quote
  #24  
Old 13-06-2008, 12:20 AM
BTS's Avatar
BTS (Brent)
Registered User

BTS is offline
 
Join Date: Jun 2008
Location: QLD
Posts: 26
Quote:
Originally Posted by Omaroo View Post
LOL! ... small world
Yes, very!! Thanks for your input at the shop too
Reply With Quote
  #25  
Old 13-06-2008, 12:28 AM
toyos
Registered User

toyos is offline
 
Join Date: Apr 2008
Location: Sydney, Australia
Posts: 112
Quote:
Originally Posted by Ian Robinson View Post
Sure - I'd love a 10" f4.7 high quality ED APO .... .... I don't think anyone here will ever be able to afford one , I certainly wont (unless I inherit or win a very large amount of money) so , a 10" f4.7 Newtonian with a comma corrector/ field flattener will suffice.
I can go deeper than any APO's I'll ever be able to buy in the forseeable future can go and resolve more.

What about a 6" Takahashi TOA-150 compared to a 12" Newtonian/SCT with a reducer for imaging on G11?
Reply With Quote
  #26  
Old 13-06-2008, 12:34 AM
AlexN's Avatar
AlexN
Widefield wuss

AlexN is offline
 
Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
Toyos - I'll quote the age old rule... Aperture Rules.

12" will resolve more than a 6". no ifs whats or buts about it... (providing both are in equally good condition)
Reply With Quote
  #27  
Old 13-06-2008, 12:47 AM
toyos
Registered User

toyos is offline
 
Join Date: Apr 2008
Location: Sydney, Australia
Posts: 112
I thought aperture was not as critical in imaging. Resolving power aside, what about the overall quality of the images? I have a 12" dob, a 12" Meade SCT LX200GPS, two 6" refractors, etc2. My 12"'s do have more resolving power especially the 12" LX200 (I can't be bothered to modify my dob), but my 6" refractors smoke my bigger reflectors in terms of image quality, visually. I'm not so sure how this will apply in imaging.

Last edited by toyos; 13-06-2008 at 01:12 AM.
Reply With Quote
  #28  
Old 13-06-2008, 12:51 AM
BTS's Avatar
BTS (Brent)
Registered User

BTS is offline
 
Join Date: Jun 2008
Location: QLD
Posts: 26
Quote:
Originally Posted by Ian Robinson View Post
Big mistake , visiting the telescope shop . Too many expensive and very tempting goodies and there are salespeople there too who want you to walk out with something and smaller bank account.

Keep in mind that a dedicated CCD camera is not going to be useable for happy snaps and you'll pay a lot of money to get a dedicated CCD device with the same number of pixcels as you will get relatively cheaply with a 40D , which can be used in your day to day photography too.
Yes that was one the pros and cons I looked at Ian. While it would be handy to have another everyday camera, its going to cost abit to get it modded with a cooler which would put the price about on par with the Orion CCD I mentioned.....but on the other hand what kind of difference will I see between the two different pixel amounts?

Last edited by BTS; 13-06-2008 at 01:09 AM.
Reply With Quote
  #29  
Old 13-06-2008, 01:38 AM
toyos
Registered User

toyos is offline
 
Join Date: Apr 2008
Location: Sydney, Australia
Posts: 112
Quote:
Originally Posted by Ian Robinson View Post
Sure - I'd love a 10" f4.7 high quality ED APO .... .... I don't think anyone here will ever be able to afford one , I certainly wont (unless I inherit or win a very large amount of money) so , a 10" f4.7 Newtonian with a comma corrector/ field flattener will suffice.
I can go deeper than any APO's I'll ever be able to buy in the forseeable future can go and resolve more.

We can get 10" - 14" Apo's for USD$45k-140k http://www.tetontelescope.com/index...._12_27&&page=3 Now I guess for some it may not be so much about affordability, but probably more about how much we are prepared to spend on this hobby. I'm sure quite a few people here have spent that much (or more) for their cars.
Reply With Quote
  #30  
Old 13-06-2008, 02:01 AM
AlexN's Avatar
AlexN
Widefield wuss

AlexN is offline
 
Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
Well Toyos, How bout you go buy a 10" APO and let us all know how it goes Ps. Have fun finding a mount to hold it, let alone accurately track something for photography

Yes it is true that its not unobtainable, More so, Uneconomical. 45.9k US is a lot of coin. and to then compare that to a $2000 - $4000 AUD SCT/MAK or Newtonian is perhaps a bit ridiculous..
Reply With Quote
  #31  
Old 13-06-2008, 07:26 AM
toyos
Registered User

toyos is offline
 
Join Date: Apr 2008
Location: Sydney, Australia
Posts: 112
Quote:
Originally Posted by AlexN View Post
Well Toyos, How bout you go buy a 10" APO and let us all know how it goes Ps. Have fun finding a mount to hold it, let alone accurately track something for photography

Yes it is true that its not unobtainable, More so, Uneconomical. 45.9k US is a lot of coin. and to then compare that to a $2000 - $4000 AUD SCT/MAK or Newtonian is perhaps a bit ridiculous..

Paramount ME can easily handle the 10" one (99lbs) . I was just pointing out that many of us could afford it if we really wanted to.

Being uneconomical is relative, some say it's unthinkable to spend 200k+ for a car even though they can afford it, and they buy a 14k car instead. Will still get you from A to B even though it doesn't feel the same.
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 03:01 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement