Hey guys I'm in the market to buy my first speed light for my oly m10mkii. To this point my photography has been mostly surf/ocean and nature landscape so i haven't had much need for a flash ever. But I'm now looking to broaden my spectram and get into portrait photography. I've already decided oon the ol 45 1.8 i just need to decide on flash but here is my delima.i only can afford either the tt350 with the x1to trigger, OR ONLY the tt685. So basically what I'm asking is with that 45 1.8 ill be using you all think it is more important to have a larger more powerful flash that i can only use while mounted to the hot shoe (tt685). OR a less powerful unit but be able to get the flash off the camera wherever i need it to be and still have full ttl capability..... so guys hope you can help me out im looking to place my order tomrrow tanks!