Converting Nikon to Sigma

[DSG]

FYI,
I did a Nikkon to Sigma conversion last week.
At a Nikkon E-series 50mm f:1.8 I took off the bayonet ,removed the not used parts,
and filed down the 3 flanges plus approx. another half a millimeter of the remaining collar.
At the aperature ring of the lens the protrusion parts also had to be cut away.
The so modified Nikkon bayonet fits into a Sigms lens byonet.
It should touch the 3 small flanges inside the Sigma bayonet.That is a good alignment for infinitive,
and matches with the distance scale on the lens body.
Once a precisely fitting was achieved,I reassembled the Nikkon lens
and glued the Sigma bayonet onto the Nikkon bayonet using a few drops of two-component adhesive.
Of course it´s manually.
Regards
Uwe
Nikkon at SD10
View attachment 1727
View attachment 1728
View attachment 1731
rear view, here you can see the 3 inner flanges
View attachment 1729
parts removed from the lens
View attachment 1730

Actually there was no need for you to convert the E 50mm f1.8 to SA mount for use on the SD10 as you could simply use the JTAT Nikon-SA adapter...Here's a sample: