I just want a bigger dynamic range (don't need more pixels, or even more lenses at the moment!).

Would love to be able to ditch ND grads if the sensor could handle a larger range (even at the expense of larger RAW files).

Matt

Calm down, calm down!!

Mannesty's comment about "there are other forums" was definitely "tongue-in-cheek". (hence the smiley)

(Maybe the English humour doesn't travel well... )
Matt (moderator)

Try turning off SR and check for noises again
The SR makes a very, very slight noise (a result of the magnetic mount and the K10D correcting for movement) - it's more of a quiet purr though.
Matt

Actually, it doesn't have to be precise... it's almost certainly providing a higher burst rate to effectively create a short continuous lighting
Matt

Article here:
http://www.photozone.de/3Technology/flashtec5.htm

If I had the time... I'd setup the storage 'scope and some measurement equipment and measure it.
Matt

Sorry... didn't notice them & can't find them
It has to flash multiple times as the curtain gap crosses the CCD - which is why it's not your normal mode and why the guide number gets cut!
Matt

Chris,
In principle I agree about the addenda... but then that's mostly why this forum is here

No idea I'm afraid... it worked with the *ist-D. But then, the additional problem is that using HSS mode reduces the effective flash power (cuts guide number in half). In practise, this means that wireless HSS outdoors becomes a little tricky because the remote gun has to see the flash as a bright enough source to read the command, but then the whole point of using HSS is because the ambient light is bright... and when the guide number is cut in half it becomes twice as tricky

Whenever I've used HSS I always use two guns anyway - the AF540 on a bracket linked to the camera with the Pentax cabling and the AF360 as a slave. Even then you have to be careful about positioning in sunlight to ensure the slave can see the flash commands of the master.

Indoors, when you don't use HSS, there's generally no problems using the pop-up with a slave gun - so I'm very glad they added that in the firmware update

Matt

Which manual?

The K10D manual says "Hi-speed flash sync" - yes (no mention of wireless)
The K10D manual says "Wireless flash *4" - Two or more AF360/AF540 needed.

So, Pentax added Wireless support for the K10D which isn't in the manual. Bonus (big time) in my book. But there's no mention of the HSS.

If you mean the AF360/AF540 manual then don't forget that these flashguns (or the protocol/setup) were designed for the MZ-S. The AF360 in particular I used with the Z1.

So, actually, I don't see a problem with the Pentax manuals here. It may be initially confusing because some might not be aware of the huge compatibility of the flashgun and think that their camera was the only one

EDIT: And if you mean there's a problem with the Samsung book.... well, what do you expect??

Matt

I seem to remember reading (somewhere) that HSS with the pop-up created havoc for the SR. I wouldn't be surprised if that were true, as creating multiple bursts of flash would create an interesting set of EMC and interference issues.

Whatever the reasons, you cannot do HSS wireless sync with the K10D unless you use a 360/540 on the hotshoe as well.

Matt