Used my Canon 20D with Image stabilised lens at full zoom of 135MM.
Was shot at 500 at F5.6 at ISO 400.
Image was still small,so used photoshop to zoom in and sharpen.
The bird was very obliging, as when I drifted close ,he allowed me to get almost to the yacht he was perching on before showing his dissent by "yelping "at me and then gliding off.
I approached him about 3 times this way,( I like that nice 4 stroke Suzuki
) before I reckoned he'd earned his lunch and a little peace and quiet.
The original magnification from just the optical zoom is shown below and then the zoomed image..
Glad you liked them; it was the first time I had got close to one of these impressive birds. Nice fish too; I'm jealous