« on: January 05, 2015, 09:11:44 AM »
Any idea if the Canon patents on these old optical formulas have expired?
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Besides poor plating, there is the near impossible situation of plating a sharp edge or pointy pin. You just can't do it. Pins have to have a nice smooth radius on the end, corners the same.
Most dirty pins are actually due to a thin film of corrosion that is invisible. It comes from cracks or porous plating, or from the sharp points and edges.
The best designs use a wiping action as the parts come together. This wipes that microscopic film away.
The ends of the pins in a DSLR are nicely rounded, but even so, its a weak point. You definitely do not want to be rubbing on them more than is absolutely necessary. The thinner that gold gets, the worse the problem is.
IMHO, the self cleaning cap is one of those designs that will do more harm than good. The lens already wipes the contacts when its rotated into place.
Perhaps if Canon collaborated with more designers, we'd get more functional gear.Thinking back of the T90 when Luigi Colani was re-interpreting camera design and seeing that this is still the major design approach of todays EOS Cameras... I think you're right.
I like to know if you keep all your lens boxes? I can imagine that it's useful to keep the camera box , but do you keep all the other boxes too?
Keep in mind that I am a minimalist
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