James,
I was using the "older version" 75-300 Canon IS lens. Canon has a far better version: 70-300 IS I am told. But it is all a moot point as I have gone back to Nikon. I now have a D-200 with the 18-200 image vibration reduction feature. I think that is one of the main reasons I went back to Nikon -- other than the fact I have had Nikons since I was 16! Rangefinders and ALL of the SLRs through the F-3. I also have the new Nikkor 105 macro with the VR feature too. I will upload an example of that lens soon. Due to foolish financial concerns (penny wise and pound foolish) I bought a Sigma 80-400. I have had sharpness issues with that lens. I probably should have bought the 80-400 Nikkor. I donno....
To all: Thanks for the kinds words about my photo!
SHEP --in San Diego, Calif.