Originally posted by jatrax I've never experienced a lockup but then I never use a grip either. I wonder what the percentage of issues with versus without a grip would be. it seems to me, just subjective, that reading 'issue' posts a high percentage of them are from grip users.
Yes, actually I believe battery grips making somewhat less than optimal electrical contact with the bottom of the camera has been considered the problem on some other bodies, but I've never experienced it (to any significant degree) on these cameras before. This is what surprised me so much. Since at least 80-90% of the action photos I take are in portrait mode, removing it isn't really an option (my arm gets too tired). I'll have to investigate it later, and making sure my batteries aren't wearing out. It's entirely possible at least two of them are, especially since I switched some of my batteries around this time (I usually put them back in the exact same place after recharging). So perhaps each grip just happened to end up with a failing batter (I usually draw battery power from 'grip first'; I may try changing that as well, but of course that will mean I have to remove the grips after every shoot, instead of only after ones that entirely drained the grip battery.
After reading even more comments over the last couple of days about how the K-3's AF improvements over the K-5 IIs are even greater than I previously believed (since I only borrowed a K-3 for a few hours), I'd like to replace both my K-5 and K-5 IIs with K-3s. But I don't think that will be a budget priority right now. Anyhow, I'm curious about what kind of updated APS-C camera might be released around the same time they deliver a Full Frame camera or two - we'll just have to wait and see.