| Nigel- Sigma lens are crap, lol! They are not the worst but they are far from the likes of cannon. The lens i have is the higher ended version but its old, nakered and really not all that!
Richard- the 30D is an AMAZING camera, you lucky man! Very true a 600mm lens will make tracking much harder, but thats the sacrifice you pay for larger zoom! A lens doubler is a much better bet as you keep the stock 300mm lens (which is still ok) and then have the option to goto 600mm. Like you say though you do loose a couple of the F-stops so lighting becomes more of an issue. However it does allow you to get those shots the 300mm doesnt. A 1.5 doubler is recomended by most as you get the increased zoom with much less grain etc.
Ive no idea whats a "good" lens these days but there are plenty of good DSLR forums to go and browse, these should help a lot. Also buy in the US definatly, prices here are a joke!
Char- my camera is the entry level DSLR from minolta, the body can be had on ebay for about £250 now which is pretty cheap (although still a vast sum of money in my opinion!)
Barry- The utterly butterly girls are great, friendly and really know their stuff! Cant beat a nice stearman though! |