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Irix 15mm firefly focus lock

sebas77
Posted 03/08/2017 - 19:53 Link
Dumb question.. Is the lock system supposed to lock or just increase the grip? Mine definitely doesn't lock makes just harder to focus.
Conqueror
Posted 03/08/2017 - 20:10 Link
I thought it was supposed to lock, so you know it will stay at that setting ... for instance keep it at infinity focus
K-3ii
sebas77
Posted 03/08/2017 - 20:34 Link
dunno, it doesn't really matter, but I would like to know
Conqueror
Posted 03/08/2017 - 20:46 Link
if you look on the irix site at the 15mm it is described in that way
K-3ii
Mag07
Posted 03/08/2017 - 20:54 Link
It doesn't lock as such. It just makes it impossible to accidently shift the ring. Given enough pressure, it is movable though I really would need to apply force to do that. Only did to try out how it works.
'Photography...it remembers little things, long after you have forgotten....' (Aaron Siskind)
sebas77
Posted 03/08/2017 - 22:37 Link
I don't need to apply much force in my case but surely it's stiff enough to not be moved accidentally

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