Frank_Teunissen

11 hours ago, gorann said:

Very important info from you Frank, and missing info from SW! I have two Esprit 150 with the aim of using them as a double rig. One is the older version that I just bought used and one is the newer, and as you say the end of the focuser is quite different, and 74 mm diameter will not fit in the old one. Have you had any response from FLO or SW about this issue?

Hi, Yes I had contact with FLO and they understood the problem. They told me that SW could for me make an adapter.   I declined that offer and returned the reducer. Meanwhile I own a TS 3" PhotoLine 0,79x reducer with a great image circle of 45mm! The only problem is the very short backfocus of 55mm...

Kind regards 

On 10/01/2021 at 13:01, msacco said:

Is it possible to replace that to match?

No, that's not possible. The tubes: outside reducer and inside fucusser won't fit. 

No, it doesn't: 

I own an “older” Esprit 150ED with the red marks on it. The new dedicated SW reducer 0.77x for the Esprit 150ED won’t fit into drawtube of the focusser. Why doesn’t SkyWatcher warn the users of these Esprit’s?