Niel, you said this system seemed to work for you. All The charts in the article above show that if you take the nearest object you have in focus and double the distance then that gives you your hyper focal distance.
on my tables for 20mm 1.5 ft = 3ft = focus distance = image[with dust] as seen.So your system works very well if you can measure distances.
Alistair
edit: my apologies I did say 1 foot originally should have been 1.5ft which doubled gives 3 foot. In my tables for 20mm 3.5 ft = f11 so 3.5 foot at f11 is the MAXIMUM distance away to focus on. So I then find a object that distance away in any direction , lock the focus and recompose [without altering the zoom of course] and took the image and several more at varying distances to test it out. It seems to work, try it Neil.
You just have to be able to measure distances or be good at guesstimating distances.
Alistair

sfuny I nearly bought one of thems , it was in a list I was sent in response to a query about products to calibrated two screens.I assumed that was the difference between a version 2 and non 2 model.
At the time I wrongly assumed that the software on a single unit tied it to specific computer [like later versions of windows]
My Huey- Pro is supposed to handle two screens but even with two hooked up I can't see any thing in the software that indicates a screen choice?
Alistair

I think cans of scrumpy is a oxymoron. Genuine Scrumpy is only available from wooden casks and poured by hand via tap or a hand pump.
My computer's extensive drinks database says your offer is invalid as you cannot get Scrumpy in a can, only cider which is a different form of libation.

I have flashguns x 3 which I hardly use. wide angle, unusual filters,
ect????

well new they are about £30.00 plus post but I'm more interested to see what Someone might want to swop for it.

I think that induces blurred pics and I have enough problems with that already!!!!!!

no thanks, got a set of extension tubes with exposure / Af contacts
Alistair

dunno, maybe someone has gadget/ widget/ unused or unwanted thingy I can need?

Neil, this today the flowers are about 1 foot away So I focused standing up on what I estimated to be 3 foot away, changed to manual focus squatted down and recomposed. 18-55 lens set at 20mm for that my table suggests for 3.5 feet/ F11 is my hyperfocal, So that is my absolute max focus distance.
works for me ok.
Alistair
http://farm5.static.flickr.com/4038/4555284142_1f32b2c578_b.jpg

Camera: Pentax K10D
Exposure: 0.006 sec (1/160)
Aperture: f/18.0
Focal Length: 20 mm
Focal Length: 20.0 mm

Any one looking for a Raynox 150, I have one brand new in its original box and packaging, never used, to sell or swop for something usfull to me?
Alistair