Didn't go lapping but took a few photos, favourites from today...

<img src="http://static.flickr.com/51/140030437_3530537dd3_o.jpg">

<img src="http://static.flickr.com/56/140030472_5fd5446d92_o.jpg">

<img src="http://static.flickr.com/52/140030703_daff9a895e_o.jpg">

Top two were with the 100-400L, cropped, needed a lot more reach to get this without cropping. Bottom with the 17-40L, cropped also for better framing.

I wasn't sure what was going to happen with those shots right next to the wall on the front straight but it worked out rather well, plus the fact with those cars going by at full tilt is quite the thing also.

Rest of the set <a href="http://www.flickr.com/photos/tanm/sets/72057594124875098/">here</a>.

Maybe I'm a little bias?

Celcius of course!