First try at macro with D70 + Kenko extension tube(s)

[awkwards]

So that's what's been eating my Red Hot Pokers!

While doing some yard work this morning, I noticed a wasp on one of my plants. I thought the slugs had been eating them, but here was this guy chowing away.

In any case, I'm a new Nikon D70 owner using kit 18-70mm lens. I'm not ready to invest in a big-time macro lens yet, so I thought I'd try the Kenko Extension Tube Set, which I'd read about in various forums.

This is my first real attempt at shooting macro. I'm not super-happy with the outcome, but it's a start. It was difficult shooting conditions... leaning over my raised flowerbed, shooting freehand, doing my best not to upset the critter lest I come away with welts. As you can see, focus was extremely difficult. The one I actually had in full focus I ended up way underexposing. By the time I wanted to try more apertures, the beast flew away, so I only got a few shots. He really was a good sport, letting me get my camera lens within an inch of him.

I picked the best two out of five and have posted them here. Both shots are un-cropped and give you an idea of the effect of one ring vs. two.

Shot 1 (horizontal orientation):
1/125 sec, f/4.5, ISO 200. Used a single 12mm extension tube.

Shot 2 (vertical orientation):
1/125 sec, f/4.5, ISO 200. Used 12mm + 20mm extension tubes.

I would like to have tried more settings. I still don't have the experience to know the best settings for the situation. Next time I'll have to try with something more stationary and with no stinger.

Comments welcome.