Quote:
Originally Posted by frolinmod
The act of changing OTAs has major implications for your Tpoint model. You might be able to get away with a saved model and a sync. I doubt you can do it exactly the same way every single time to the most minute detail, so a saved Tpoint model probably won't be as useful as a fresh one. If not, then maybe the sync with a short re-calibration run off the saved model as the base might be good enough. I myself have never had much success with re-calibration runs. They never give me results anywhere near as good as a fresh full calibration run and don't save me that much time either. So I just sync for minor changes and when the change is more than minor, I bite the bullet and do a full calibration. If anyone here is having great success with doing a short re-calibration run to an existing model instead of full calibration to create a new model, please pipe up!
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I think you are talking about switching out one OTA for the other (a physical change to the setup) where as the original poster is talking about having two OTA's permanently mounted at the one time. I could have interpreted wrong.
Two models sounds legit but is beyond what I'd do, I just use the one model. I build the model for the long FL scope (2900mm) and the short FL scope (600mm) is sufficiently short (perhaps) and sufficiently rigid that I don't notice any problems with using the short FL scope from time to time. Pointing appears accurate and unguided exposures still track well in both scopes.
Roger.