Hi everyone! I have a Celestron 14" EdgeHD tube. I have had it for 3 years and used it very little the first year. But I have moved to a darker place and have started to use it regularly. When I used it directly after i bought it I could use a diagonal and an eyepiece and watch the stars, and with a 65mm long T-adapter and my Canon 550D I got focus. Now I can´t get focus with an eye-piece and a diagonal, and with the camera I have to use a 20mm T-adapter to reach focus. So the focus seems to have changed about 45mm. I stored it in the box it came in but on a south-side glass-sealed balcony on