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Thanks Leo, Josh and Mike,
Yes, I am quite perplexed how everything is supported on those 3 screws, with only about 3.8mm of thread depth. Anyone who knows about thread sheer stress, knows aluminium threads are required to be 2.5 x thread diameter for steel bolts to withstand the stress that might be placed on the bolt... This is why I have 9 bolts.
Some people might say, 9 x m6 cap head bolts is a little overkill, and I know it is, But there is flex in everything, and I mean everything (not refering to GSO here) but metal fixtures and plates will always flex minor amounts, its a matter of minimising it. So 9 bolts will go a long way to keeping flexure at the camera interface to a minimum.
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