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Hi all, Anyone know what the most powerful option is for HSS on a Sony A7RII for on camera flash? And what the output generally is (do they have HSS Guide Numbers?) I've been looking at the hassy x1d and rx1rII because of their leaf shutter options, but both have huge issues for me (x1d, the massive price tag compared to the relatively unfinished and glitchy product - the Rx1RII the 35mm lens, which while great is too short for most of my work). I am starting to work on a project where I am using direct on camera flash outside in a variety of lighting conditions. Subjects are myriad - mostly still, but movement is not a concern. Just looking to get the most powerful artificial light output that I can on my A7RII while shooting at higher shutter speeds. I am also gelling the flash, reducing output, another reason I want power. While this is a constraint, I want to limit this to on camera flashes only, as this all needs to fit in my shoulder bag.

I just received the Pixel King triggers to be used with 2 Nikon SB900 flashes and they work and do high speed sync up to 1/8000. I can also change the power of the flash and works 90% of the times. I will like to use the in high speed sync with my Cheetah Light and it only sync up to 1/250s. Does anyone knows if there is an update to fix both issues (90% of working and the issue with the Cheetah Light and if it exists, where to find it? I am ok with using them in manual mode, I never used TTL. It seems this company (Pixel) is not working full time. I found one but the date of the update is May 16, 2012 and is very old. http://www.pixelhk.com/Down/DownPage.aspx...

Example of High Speed Sync using Sony A7 ii and HVL-F43M. Details: Sony A7 ii body with Sony 55mm f1.8 lens HVL-F43M flash in TTL and HSS f4.0, 1/800 taken in California, USA Models: my wife and grand son