At the end of this year, or maybe early 2018 the Cactus RF60 flash can be updated to X-TTL.
https://www.cactus-image.com/commun...-the-original-rf60-get-the-ttl-upgrade#latest
Must be one of the best manual units out there.
https://www.cactus-image.com/commun...-the-original-rf60-get-the-ttl-upgrade#latest
Must be one of the best manual units out there.
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