I went to the Woodland Park zoo a couple weeks ago with my gf, conditions were mostly overcast with some sunshine later on in the day. It was a great learning experience for me. I seen alot of Canons out there which gave me a really bad case of the "I wants" hehe. All shots are handheld as well. Im kicking myself for not documenting the correct names for each of the animals 
All pictures were ran thru CS2 noise reduction, resized to 25% and ran with a very slight unsharp mask.
1. ISO100 f/3.7 1/200 72mm
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2. ISO100 f/3.5 1/30 18.8mm
Background was blue in that section of the exhibit, Im really wishing I could shoot RAW, from all the jpeg artifacts in the blue.
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3. ISO400 F3/5 1/125 45.2mm
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4.ISO100 F/3.5 1/200 57.6mm
Squirrel in flight!
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#4 was my favorite shot of the whole day, infact it made my day. Zoo squirrels up here are big time teases. They pose, will let you get in close then move. I put my camera into burst mode and chased this squirrel for a good 5 mins, this happend to be the only shot with acceptable focus. Not the best shot, but it sure was fun.
Shooting the golden lion monkey things was a challenge, since I was behind some dirty glass and it was a bit dark. Past ISO200 noise is VERY noticeable on my camera
Ill post more later after work.
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