Hi, Recently started with astronomy with a basic 5 inch reflector, not motorised but interesting initial explorations. Subsequently became interested in trying to take pictures of the moon, saturn and then onto Jupiter. Found through utube that you can modify cheap webcams and in combination with registax etc and a £12 HP HD 2200 webcam managed an image of Jupiter with a little band detail on it. After much debating coughed up £300 for a canon 1100 DSLR and have replaced webcam with the camera body only on t-piece with the same barlow used with webcam , I think initially assuming I would be able to get better image detail, but I think I have fallen foul of the relative CMOS sizes in the two cameras. ie although the camera is 12MP, the sensor size is 22x14 mm approx compared with the cheap webcam which is lower pixels but on a much smaller sensor maybe 3 x 2mm . Consequently even if I use a better barlow than I have at present (2x), the final image will always be better from the webcam I believe because the jupiter image is activating more pixels in the webcam than the camera. Am I correct? (I accept the DSLR is good for wide view long exposures, so not completely waste wasted £300).