As above, simples.

I can't stop watching it, so funny. Great character. Now if he was a moderator here . . . .

Hilarious. Thanks for the laugh.

Sounds like you've tried all the tricks that we here might have suggested.

Modern DSLR's are incredibly complicated bits of kit so I'd suggest sending it off for repair, or look at replacing it.

Go for the 31 Ltd, you'll not be disappointed with it.

I think that HSS flash may not be possible with a manual aperture lens (M series or older).

To use HSS flash the camera's exposure mode needs to be set to either Tv or M, and in that state, with an M lens attached, the camera has no idea what aperture is set on the lens.

EDIT:

I just put my M 50mm 1:1.7 on my K20D and it confirms what I thought. I also tried my A series 28mm, and that needs to be set to the A setting for HSS to work above 1/180th. When the lens is set to any f stop, the shutter speed can't be raised above 1/180th.

This is all due to Pentax adopting the 'crippled' K mount for all of its DSLR's, and some film cameras too. That is, if the lens is not set to A, the camera can't know what aperture is set.

Hope that helps.

Dumfries and Galloway, it's like Cornwall . . . without the tourists.

Up through Carlisle into Scotland, and turn left towards Locherbie. Most people just carry on up to the more traditional tourists spots and miss this beautiful area completely.

Good decision.

In the interest of accuracy I should add that, Pentax flashes will work on the Samsung badged Pentax clones, GX10, GX20 etc. Similarly, the Samsung badged equivalent of the Pentax AF360/540FGZ flashes will work on Pentax cameras.

But you probably knew that already

One of the reasons that you don't see Canon flashes on Pentax cameras, or Nikon flashes on Canon cameras, or Pentax flashes on any other make of camera is . . . they don't work.

Reason, the hot shoe pin configurations are different, with probably only the centre pin being common to all. That centre pin means that in theory, all flashes should work on all cameras in manual mode, and that might be true if there was only the one pin, but there are more.

It would be foolhardy to even try using one makers flash on another makers camera system unless it's a third party flash, like Sigma etc, and the flash is dedicated to that particular camera system.

Don't do it. If you do, you risk a potentially expensive repair billt to the camera, flash, or both.

Did I say, don't do it?

If you were to try this mix 'n match approach, you might get lucky and some functions might work, but would you really want to test all of the possible combinations of X camera with Y flash to determine which, if any, functions do work?

The noise/feeling is normal, just use it and enjoy it.