AlanJW Posted June 19, 2009 Share #1 Posted June 19, 2009 Advertisement (gone after registration) I finally got around to having my Zeiss 25mm f/2.8"s mount milled for coding (by John Milich, who does beautiful work by the way). This is the mount designed to bring up the right framelines. So I read all the posts here and I get a Sharpie and carefully fill in the indentations in the proper places. Nothing. Then I decide that the screw on the mount may be confusing the camera so it gets a does of white-out. Nothing. Some nail polish remover and start again to repeat; nothing. I then realize that while the Sharpie method may work on some mounts perhaps it doesn;y on all, and I trundle down to the hobby shop and pick up a bottle of Testors flat black model paint and another of flat white, along with a very fine brush. The blacks fill the indents. The white filss its indents and covers the screw. That worked. My camera now thinks the Zeiss is a 24mm Elmarit. I am happy. And I wanted to share the experience as the Sharpie is now good for taking notes but not doing coding on this lens. Link to post Share on other sites More sharing options...
Advertisement Posted June 19, 2009 Posted June 19, 2009 Hi AlanJW, Take a look here An observation on self-coding. I'm sure you'll find what you were looking for!
rycm Posted June 20, 2009 Share #2 Posted June 20, 2009 I hand code my lenses with the Sharpie. I have the JM Screw mount to M-bayonet for my 15-Heliar. Sharpie did not work, but I have another adaptor that came woith the heliar, so I sharpie that one as a WATE. Works beautifully. Link to post Share on other sites More sharing options...
sfokevin Posted June 20, 2009 Share #3 Posted June 20, 2009 The sensor on the camera is not sensing the color (Black or White) The sensor is flashing six separate IR lights on the lens and sensing if that light reflects back... The flat black absorbs the light and is not returned to the sensor... Anything that reflects the light back to the camera (White, silver flange or reflective black) will be considered as "white" Link to post Share on other sites More sharing options...
stunsworth Posted June 20, 2009 Share #4 Posted June 20, 2009 It depends on the pen. if the ink absorbs IR light it will work, if it doesn't, it won't. Link to post Share on other sites More sharing options...
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