| Biff |
| (Carpal Tunnel) |
| 07/09/09 03:03 PM |
|
Re: RTV, Glass, and Holder Material
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Quote:
For secondaries you definitely want to use three pads of RTV to hold them, I've heard of cases using a solid bead that produced warping of the secondary.
That's the truth! I did the complete bead the first time I mounted a secondary and astig was so bad in focus I was looking a two stars! 3 blobs of silicone fixed it up nicely. That it how I mount my secondaries now and haven't seen any stig since.