Great shots, what ISO did you use. Looks like these were shot in low light, did you have any artificial lighting? I have the 50D also and love it so far.
haven't been on the site in a while good too see some old timers still posting great work, framing is a bit much though
Those cowfishes look great. It was the first time i saw one i Amsterdam zoo though. And I love the Sigma 105, great lens to work with. Thanks for the reply I used ISO100. But I also use a Speedlite 430EX with a Lumiquest softbox for some extra light. I usually shoot at F14 and without a flash I cant get a good shutterspeed that I need for the bugs and stuff. Im also very happy with the 50D, Im glad that I bought that one Thank you for your comment Thanks..............and I like the framing Cheers Thanks
Excellent macros. My personal favorite if #4. Very tough to get a great composition on a subject like that, but you did it very well.