Originally posted by AVANT The 540 was around before the K10D, so when the manual was written, it may very well have been accurate. My guess would be one of the ist series cameras.
While this is totally true, the manual was also updated (don't know when), but mine features what is and what is not available with all current Pentax DSLS, including K10D and K20D. As reference to this, the manual says (AF540FGZ):
Page 40:
Attachment 21238
Another interesting note: Look at step 3. Maybe this was not set correctly. (page 52):
Attachment 21240
Another reference to all cameras on page 60:
Attachment 21241
Probably, the most important page regarding this matter, page 63:
Attachment 21242
Some extra considerations on page 76:
Attachment 21243
I personally havent tried WHSS with my K20D and AF540FGZ, but do use a lot of Wireless using built in flash as controller only, and everything goes smooth "by the book". In fact, I've had more "flash exposure errors" when my 540 is attrached to hotshoe that when used wireless.
After reading the manual, I do agree that it takes too much steps and too much considerations to put things to work as pretended (slave channel, sync mode, camera meter on or off, wireless channel, firmware version, mood of spouse and probably your credit card balance too takes into consideration).
I also know that the manuals are originally written in japanese, then probably translated to arabic, then to latin and later to english. Being in the graphics industry I know for sure there has to be something "screwed up in translations". If this is the case, maybe pentax should be contacted to make them aware of such errors or better yet, issue firmware updates "to match what the manual says".
Robert B.