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Forum: Pentax K-3 & K-3 II
04-30-2014, 07:09 AM
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I have just joined the forum in order to report my own experience of Mirror Flap, which tells you that I think that the OP is right to press Pentax on this issue and should be supported.
Date of event: 4/24/2014
K3 camera purchased 2/18/2014
Shutter count: about 1400
Ser No: 4841515
RAW (DNG) + JPEG
Two Sandisk Extreme (32GB and 16GB)
DA 300mm f4.0 + DA AF 1.4X rear converter
TAv (1/1000s at f8.0) + 1.3EV
AF.C Sel M
Back Button focus
AF button: Enable AF2
Continuous shooting Mode : High
SR on
I had just taken 21 shots of an overflying bird in four bursts, then as I put the camera down the mirror flap started. Nothing I could switch or press would stop it, but the battery was on about half charge and the rate of flapping slowed and then it stopped spontaneously. Should it happen again I will know to remove the battery.
As to cause, it seems to me that due to some combination of circumstances/settings that we have yet to identify, a firmware subroutine controlling the mirror motor gets into a closed loop that cannot respond to any input. Cutting off the power is then the only remedy.
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