My V6II, RF60/x, X-TTL (Pentax) Review
Following updates to the most recent firmware, I have tested my Cactus system and written a Review. This is posted at PentaxForums.com in the Review Section. Please have a read of it here .... https://www.pentaxforums.com/accessoryreviews/cactus-v6ii-amp-rf60x-x-ttl.html
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