This is the Summicron 35mm, one of the most appreciated lenses in Leica forums
	It is a 3 cams model
	First, remove these 3 black screws
	Push the black shroud at this side, so you can lift the other side.
	This way, it can be removed
	Now unscrew the bayonet
	And remove it.
	Look for the small ball, sometimes, it remains sticked to the bayonet, put it in safe place for now.
	Unscrew the clear metal cams.
	Remove them.
	This is what is removed.
	Now we can replace the small ball, and leave a bit of special grease with it.
	Ball in place
	Install the Leica-Pentax or the Leica-Nikon bayonet, the red dot in front the scale center for Pentax, and slightly to the right for Nikon.
	The Summicron is ready for Pentax and Nikon Digital cameras. This lens was in theory  going to hit  the FX cameras mirror , but , recently  I had confirmation of the contrary, there is no mirror  problem.
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