Originally posted by Daz85UK Thanks,
I was looking at the Pentax AF 360, is this a good flash to use inside and outside?
Im not to sure what TTL and P-TTL is?
TTL flashes are older technology for automating flash exposure. Your camera can only use P-TTL technology for completely automatic flash exposure, so you can more or less forget about TTL to make the discussion simpler. Just avoid TTL-only flashes. The P-TTL system sends out a short flash burst, measures the light that the camera gets back, does a quick calculation and tells the flash how much light to put out for the correct exposure.
You can buy equipment for the P-TTL system that will allow wired or wireless, single or multiple flashes. You can see many of the available P-TTL flashes in this thread:
https://www.pentaxforums.com/forums/pentax-camera-accessories/43215-pentax-p-...omparison.html
What you need for a working system depends greatly on what flashes you intend to buy. The AF-360FGZ is one of Pentax's P-TTL flashes, and the cord someone showed a picture of is a good inexpensive way to use it off-camera.
Another option is to use flashes that are set manually. Then you can purchase flashes and equipment that only have to know one signal: Fire! It makes that system more flexible, simpler, cheaper and more reliable. It also can be extended to other types of studio lighting. Of course, you have more work to do setting up the flashes or other lighting.
I suggest figuring out the final system you want first, then figure out the cost for doing that in a P-TTL system and a manual system. Then it will be easier to find a starting point which makes sense. The Camera Accessories section is a good place for more questions about flashes and lighting systems.