I've debated whether to post some of these photos or not. There are some superb macro shots on the forums from eaglem, charliezap, bluestringer, rense, grzehoofr (wow! check his images out), and many many others (sorry for those not mentioned explicitly). I can't begin to compete with what they can do, and I suspect I'm not the only one who feels a bit overwhelmed.
But at the same time, I'm pretty pleased with what can be accomplished using a dirt cheap setup (neglecting the cost of the K5 of course). All these photos were shot using either a Super Takumar 135/3.5 or 55/2 lens, stuck on some random length of extension tubes. I have two sets of tubes - a cheap K-mount version and a nice vivitar m42 set. I stick an m42-K adapter into the K-mount tubes so that I can switch between macro and non-macro quickly, and so I can hook the two sets together. With the double set I have about 128 mm of extension so I can get a bit better than 1:1 on the 135mm lens. That lens is a lot easier to use than the 55, where you need to get a lot closer to the subject. Price for each lens was $30 or less including shipping, and I got both sets of tubes $30 shipped. Where flash was used it was the built-in flash, occasionally diffused using a handkerchief. Apertures run around f8-f11 for the 135, and usually closer to f16 for the 55. But I typically twist the dial to see what works, especially when flash is used. Depending on the background and metering modes, I've also found you sometimes need to overexpose the image as the metering isn't quite right.
I tried to minimize the post processing. Usually just a bit of contrast and brightness tweaking, and a little sharpening after the resizing. I only cropped in a couple of cases where I felt it helped the composition.
Feedback on any of the shots welcome.
First couple showing different lengths of extension:
This next one was taken using the double set of tubes - the aphid can't be more than about 1-2 mm long or so they seem