Hi, thanks. Ultimately it is my goal to produce images of the highest sharpness and clarity (that is, once I have learned how to take a good photo) that I could produce very decent prints from; I'd also like to have a go at listing some images on a library like Alamy for example. I know that my manual focus Takumars will do that, but of course I'm limited in terms of action/movement.
You mention the 28-300 and 400. Are they Sigma?
Reality is that I'm certain I can't afford the best lens, but I have to start somewhere. My Dynax 500si (not bad at all) has I think the standard 35-70mm. I wondered if this was a good lens or not.