Most Powerful/highest "Guide Number" hot shoe flash for FUJI X-T1
I own a FUJI X-T1 and X-T2 and need to know what is the most powerful "hot shoe mounted" flash I can buy that is compatible with the V6 and FUJI cameras.
I will be using "POWER SYNC" mode 100% of the time.
I don't care if the flash is a NIKON, METZ, SONY or any other brand. I just need it to work without any issue.
I'm hoping someone can tell me what flash to get that has the highest "GUIDE NUMBER" possible.
Thank you very much in advance,