https://www.amazon.co.uk/dp/B01N9H2R3Q/ref=sr_1_2?ie=UTF8&qid=1482110400&sr=8-2&keywords=sn600fgz

Amazon link initial price £96..

If like me to like to use off camera flash. Then TTL for Pentax has never really been an affordable option. Especially if you own K3ii or K1 with no pop up flash to use as a trigger..
But Now Shanny ( a cheap Chinese Flash manufacturer.) Have announced the SN600FGZ.
I havnt see a price as yet, but the canon Nikon Sony versions have been out for a while. Have good reviews, and retail around £65 or cheaper !!

Nice set of images Alan.

now the onboard flash has been removed. The Pentax AF540FGZ or AF360FGFZ really have become expensive options. As off camera flash accessories. With no way, I am aware of. Of wirelessly triggering the P-TTL system.
I agree with Gareth. The Yongnuo manual system is a very cost effective and workmanlike system. I use the YN-560 flash units which have built in receivers. Coupled with the TX-560 trigger. Which allows you to remotely change the power settings of the flash units. Setting up a manual flash system, once you get used to it really only takes seconds. And its rare that TTL gives perfect results, straight out the box...

I do also own the AF540FGZ.....

Camera shows and shops are a thing of the past and going nowhere...... Online sales and Youtube marketing are far more powerful reach far more people bring in far greater sales numbers... I'd be interested in knowing the current over the counter sales compared to online sales....

Welcome onboard........

The Af360fgz or Af540fgz are the perfect choice for your first flash unit. Giving you P-ttl option. Yongnuo dont support Pentax in their TTL units. But if you want to learn manual flash they are certainly an option. I also would recommend the Metz units If you decide to save money away from using Pentax.. Its an area poorly supported by the third party manufacturers.

Nice choice Peter..... Good to see owners sticking with the brand...

Love it....

Hi there welcome to the forum...Good to have you around...