If you have never used a feathertouch focuser you should start. If you're doing AP this is indispensable. the standard Celestron focuser is fine for visual, but doesn't provide the micro-fine focus needed for Astrophotography. Even for visual, the ability to be able to focus in micro-increments on Saturn without it jumping all over the place was worth every penny. The ability to get into razor sharp focus was important to me (especially for AP)and without a microfocuser it was near impossible to achieve this unless i just got lucky. We all know how little time we get to image and so much AP i see is amazing, but a hair out of focus at times. just my 2 cents, but a good quality microfocuser is as important as a good mount in terms of your images. if you can track and have a good camera and optics but cant get the sharp focus you need, its all for naught... in the end, in AP, its Tracking, Focus and optical quality of your scope that make an image a winner. The feathertouch focusers are legend among Astronomy enthusiasts... Get one