Sorting out planetary imaging….focus point for ZWO 385 MC camera (Sky Watcher Equinox Pro 100mm OTA + Tele Vue 75mm extension + 2″-1.25″ adapter + ZWO 385 MC camera with 1.25″ nose piece)

I have had terrible difficulty getting planetary images so, with Mars high in the sky, now is the time to sort it out!

First step – obtain focus.

. The following photo shows the point at which this combination obtains focus when the telescope is in my lounge and I have aimed it at roof on neighbour’s house at end of garden about 150m away – the furthest terrestrial object I can see from my gouse/garden.

Obtaining focus with similar setup and location and object but using 35mm extension tube instead.

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