Red dots on Leica lenses?
These are small red hemispheres on Leica lens barrels to help get proper alignment when lens-mounting. Sometimes these dots fall off. Sometimes they’re MIA when you buy a second hand lens. What can you do?… • Contact your Leica spare parts department and buy a replacement (@ $10 each in Australia!) • Andy Piper recommended the following DIY tip in July 2006: You can also make your own (a tip I got from the old forum). Go to a map store and buy a box of map pins. These have spherical coloured plastic heads the same radius as the Leica lens dots (within .5mm), and red is a basic color available. Cut the red spherical head in half with a hobby knife, and super-glue one of the halves onto the lens.
