Here's another question for more experienced sky watchers. I have seen such impressive results from high quality astrophotography and I accept that the visual views from by garden will be vastly inferior. But there are many filters for sale and I would love to avoid buying something at great expense that will probably make not difference to what I see. What's the point of my using filters? Is there a selection of affordable filters that are likely to actually improve what I see. I am located a fair way to the West of London and there are no street lights for several miles around our house. As an aside, I was pleased to locate the Andromeda Galaxy with my 'good' X10 binoculars, the other night. Later in the week, I got a view of it through my 8" Dobsonian. It looked much the same, actually; the central blob was, to my eyes, much the same angular size in the eyepiece. The fuzz round the outside was more of less lost against what I thought was a pretty clear sky. You are going to tell me that's par for the course and that I will have to spend much longer on a very cold clear night etc. etc.?? I was still humbled by the thought that the light I was seeing (and identifying) was launched 2.5 million years ago!