Thanks Phil!
Most definitely! These are actually three separate wasps (which you can confirm by looking at their markings) - #1 was VERY lethargic due to drop in temp and I was able to pick it up on a leaf and take some pics on a table, but #2 and #3 were both "in the wild".
I can't remember for sure if #1 was with my 36mm extension tube on or not, but I think it was - #2 and #3 were definitely lens only. The lens was set to 1:1 and I'd say they were cropped quite substantially. The wasp certainly did not fill the frame!
I can't sing this 105mm VR lens' praises enough. I really do like it a lot. Paired with a D800 it allows me to crop quite substantially while retaining loads of detail. Obviously I am cropping for effect and not because I couldn't frame it correctly - a wasp is too small to get this type of shot straight from the camera without using extension tubes.
As an example, the below is #3 but straight out of the camera - no PP at all except for the addition of a watermark at bottom-right.
Click the image below to view on Flickr...
http://www.flickr.com/photos/61929034@N05/8209250718/