After replacing the bellows on my Iston 4X5, I made an adapter to mount my K200D. With a 127mm lens from a Polaroid, it can do pretty good macro.
[IMG]http://i630.photobucket.com/albums/uu25/wildlifephotog/adapter.jpg[/IMG]

If you can leave it sit somewhere outside for a couple hours each day, it wiil clear better. Wrap tinfoil around the the thread end, and stand it so the sun shines down into the front lens. This bounces back more of the rays, and prevents a possible fire from light concentration. I usually check it every few hours and rotate to keep the sun hitting straight on.

Window glass, especially double pane, stops most of the UV rays you want.
That's why it is so hard, if not impossible to get a suntan through glass.

I'm not wanting to argue. Just help folks from "bricking" a great camera.
Since I had to repair my first DS, I've taken an interest in the internals of the digital cameras. Their circuit boards seem to be a tad fragile in certain circumstances.

When I asked a Pentax tech, he said only PC socket was protected from high voltage.
Plus their own video only states the PC socket is protected.
http://www.youtube.com/watch?v=fZlVEe2y9e4

And I know of a K10D and two K20D's fried from using old Vivitar 283's.

The safety circuit for the PC connector does not extend to the hotshoe.

If Pentax is ISO compliant, the top voltage on the hotshoe would be 24 volts. They don't claim to be ISO compliant.

The over voltage does not always cause instant damage. But the continued spikes can suddenly blow out circuit boards.

I don't see all this noise in CCD's that everyone hoots about. My DS and K200D are very smooth on long, low light shots. And I don't use the DFS or noise reduction in camera. If I need a better signal to noise ratio, I stack photos.

The K200D is the last Pentax that you can turn off all DFS.
I use mine for astro work also. It is why I went with it, rather than a newer, higher MP camera.

One of the worst storms I've ever been in, was in June 2006. It lasted 12 hours and the lightning was nonstop the whole time. It blew transformers off poles in my neighborhood. Blew a brick chimmney off a house down the road.

It is very easy to get huge lightning strike photos just about anywhere in the USA. We even get lightning in snow storms.

The lag in the circuit and shutter is less than the usual 100ms duration of a lightning strike.

Here is a circuit that can be used also. It is 9 volt battery powered.
[IMG]http://i630.photobucket.com/albums/uu25/wildlifephotog/lightning_circuit-9vdc.jpg[/IMG]
http://web.mit.edu/kumpf/www/projects/LightningPhoto/index.html