View Single Post
  #23  
Old 08-05-2007, 02:51 PM
jase (Jason)
Registered User

jase is offline
 
Join Date: Sep 2006
Location: Melbourne, Victoria
Posts: 3,916
Statistics... Do we have statistics...

Below and the attachments are just a the beginning. There is plenty more information out there to ensure you're well informed.
TMB lenses;
http://www.tmboptical.com/documents/ExistingFAQ.pdf
TOA-130;
http://www.optique-unterlinden.net/hp_toa130.htm

In all seriousness Stephen, I'm not trying to put you or others off the purchase of the FLT-132. It is a good scope and I feel certain you'll be very happy with it. I simply get disappointed when people draw a conclusion without understanding specifications. It’s like buying Gold, but expecting it to look like Rhodium.

The bottom line is that the same optical design and glass does not equate to the same optical performance. As can be seen in the spot diagrams and colour correction information, there are differences. Many people may see them as subtle, but refractor "aficionados" will assess them for what their worth. A good visual refractor does not necessarily translate to a good astrograph. Hence depends on what you’re looking to do with the instrument. The assessment of optical statistics and performance of refractors is a whole other discussion of which I'm sure there are more qualified refractor "aficionados" than I am that can answer.
Attached Thumbnails
Click for full-size image (chrom132.JPG)
35.9 KB288 views
Click for full-size image (chrom132ff.JPG)
37.1 KB274 views
Reply With Quote