You asked for tips, so I hope you don't mind me making a couple of suggestions. There is a lot of 'noise' in the pictures which shows up as tiny multi-coloured dots when you zoom right in to a plain background area. If you are using auto, the camera has set the ISO value high to compensate for lack of light. This can be overcome by either using flash or manually setting the ISO value low (say 100 or 200) but the exposure will then be quite long to allow more light to reach the CCD so you would need a tripod. A tripod would definitely be a good idea for sunset shots as you can see that the silhouette of the bird is out of focus due to camera shake. Hope you don't mind me mentioning it
As an example, here is a cat shot that I took in a zoo. http://www.roymiddleton.btinternet.co.u ... opard2.jpg (clicking on the picture will show it at full size). My camera is not as sophisticated as yours, being a 6Mp 'superzoom' compact but it does have image stabilisation which means that you can get away with not using a tripod. This shot was taken with a low ISO in low light at maximum zoom (430mm), hand-held, through glass. Although the focus is slightly in the wrong place (it should be on the eyes, rather than the nose) it shows the detail that can be achieved if you can just stabilise the camera (tripod or IS).
Ian








