I have attached the JPEGs.

I will post small jpegs of these for others to see. Robert

Thanks Roland. Robert

Ok. The only way I know to do that is Dropbox. I’m not sure if that can be used for a group. What is the max file size we should send? Robert

These are cropped to just show the star. They are much bigger full size. Robert

Thanks. They were 2.4mb when sent. Robert

I think the files were too big to send. Did anyone get them?

I took the test shots you suggested. I used Pollux and shot 1,3,5,15.30 sec exposures inside and outside of focus. The 1 and 3 sec seemed to look the best but tell me if you want the 5, 15 and/or 30 s

I ordered one. Thanks Robert

I just looked it up and now they sell the circle projection attachment Robert

Wayne did you also adjust the primary? Do you have an attachment to project a grid or circle on the wall? I bought a focuser tilt adjustment ring so I could do the full laser collimation procedure -al

Did you ever try to use a laser? Robert

Thanks. Your TEC 140 is about the same focal length that I used for the M 81 and 82 combination. I really love my CMOS camera. I am in line to get one of the new ASI 2600s. I was worried about that ev

For the temporary mask I was just going to reach down and lay it on top. I think we will have to take the scope apart to do the more permanent. Robert

Ok will do. Thanks.

I would love to see the results with that scope. I have been considering the smaller one. Robert

Thanks. I have a pier set up in my backyard and can do testing. With the scope tilted up I can just lay the mask over it for the test. Robert

Thanks for the optics lesson.

Thanks for the suggestions.

If I were to attempt to mask the edge what kind of tape can you use that wouldn’t harm the coatings? Robert