3.3 Reducer measurement advice

[KEJ]

3 hours ago, Stuart1971 said:

Yes, try and work out where the actual shoulder of the reducer is and yes it will be a couple of MM inside the T adapter….👍🏻

Brilliant and thanks once again.

I will bring everything down and alter once again.......

Job completed and now the wait for the weather......

Edited April 16, 2023 by KEJ

[KEJ]

Managed to get a small break in the cloud. 

Steel ruler, 6.3 Reducer and A4 paper in hand, I took an approx measurement of 220mm FL, which I think equates to mine having or requiring a BF of 105mm or 107mm approx to the join between the Reducer and T-Adapter.

Optical train should now be set and hopefully clear skies tonight.

Thanks again for everyones comments and advice.

 

[KEJ]

This was more of a test last night, but with the 6.3 Reducer at 105mm or 107mm to the join, I had a FL of 1304mm when it plate solved(info in App and FITs header file), which I believe equates to the Reducer working at 6.4 which is possibly the best I'm going to get.

Meade 2034mm FL 1304/2034 = 0.641

 

Sunflower Galaxy M63 Approx 27 million LY away and 100,000 LY wide.

Not the best image as I only managed about 50mins of data last night and a fair amount of fringing on the stars(just can't get the staff).

Captured using Meade 8" SCT with a 6.3 Reducer with a FL of 1304mm. ASI533 MC Pro, guided with the help of the ASIAIR.

Bortle 6.

Edited April 21, 2023 by KEJ

[Louis D]

Well, the galaxy looks quite nice indeed.

Too bad about the stars.  It looks like the various color layers need shifted radially.  The shift grows with increasing distance from the center.  I recall Helmut Dersch had a feature in his Panorama Tools to do just that.

[KEJ]

12 hours ago, Louis D said:

Well, the galaxy looks quite nice indeed.

Too bad about the stars.  It looks like the various color layers need shifted radially.  The shift grows with increasing distance from the center.  I recall Helmut Dersch had a feature in his Panorama Tools to do just that.

Thanks and I have never heard of that/him before.