Brinders

I must add my tribute to Sir Patrick Alfred Caldwell-Moore. The Sky at night was first broadcast in the year of my birth (1957) making it the longest running TV programme by the same presenter anywhere in the world. As already stated, Sir Patrick was an inspiration to all interested in astronomy. I remember too his presentation with James Burke of the Apollo moon landing in 1969 for the BBC. It was only this morning that I was watching the latest Sky at Night progamme presented by Patrick (before I heard of his demise) about Mercury on the BBC i-player. A great communicator and broadcaster, he will be greatly missed.

RIP, Sir Patrick.

Brinders

Try without the barlow first and see if you can get a good clear image that way - i.e. with just the eyepiece.

Brinders

Assuming you have put in the mirror diagonal into the visual back and and eyepiece in at the opposite end, you simply need to focus with the rubber knob, rotating it either left or right, until the object you are looking at comes into focus (for example, the moon).

Brinders

I have the SLT mount and have tightened the nuts holding the legs to the mount for better stability, but I have never had to tighten the altitude centre bolt or the azimuth as I have never been able to turn either by hand. I therefore can't see there being any problem If you carefully tighten the alt az bolts using the correct size spanner and only sufficeint so thet the mount cannot be turned easily by hand. Unlike the CPC mount, there are no clutches to tighten on the SLT.

Hope that helps,

Brinders