Pentax /Samsung Metz flash on K-7
Pentax and Metz flashes have 4 contacts and a pin which is lowered when the knurled nut is turned down to fasten the flash. The pin lowers into a hole of the hot shoe - the foremost left position.
Rewind the knurled nut back as far as possible (upper position) then the pin should be off the hole and the flash can be removed.
we don't see that we don't see (eye's blind spot)
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