- #1
Saladsamurai
- 3,020
- 7
Moderators: Feel free to move if this is not the appropriate spot![Red Face :redface: :redface:](https://www.physicsforums.com/styles/physicsforums/xenforo/smilies/oldschool/redface.gif)
I have been looking at some mirror grinding kits for a telescope making kits; here are three listings for a 10" mirror that are the same in all aspects except for the "wave" aspect. What is this?
I am sure it has something to do with the fact that they are "semi" pre-ground (i.e. they have started the process for you). Do you think that the amount of work they save me is worth the extra 75-100 dollars for the mirrors?
Here is the ad: http://www.newportglass.com/educkit.htm
Many thanks,
Casey
![Red Face :redface: :redface:](https://www.physicsforums.com/styles/physicsforums/xenforo/smilies/oldschool/redface.gif)
I have been looking at some mirror grinding kits for a telescope making kits; here are three listings for a 10" mirror that are the same in all aspects except for the "wave" aspect. What is this?
I am sure it has something to do with the fact that they are "semi" pre-ground (i.e. they have started the process for you). Do you think that the amount of work they save me is worth the extra 75-100 dollars for the mirrors?
Here is the ad: http://www.newportglass.com/educkit.htm
Many thanks,
Casey
Last edited: