Lens info without lens coding on the M8?!

[beewee]

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Has anyone experienced lens information showing up in their metadata when they shoot with uncoded lenses?

 

I noticed that my 90mm ('thin') tele-elmarit II consistantly gives me the correct lens information even though it is not coded what so ever. It's odd since my 50mm/2.0 cron doesn't do this.

 

Also, I've noticed that even when I'm switching between the 28mm/2.8 elmarit ASPH (coded) and the tele-elmarit (not coded) which calls up the same frame lines, the M8 knows that it is the 90mm tele-elmarit II and not the 28mm/2.8 ASPH when the tele-elmarit is mounted.

 

The same doesn't hold true for my 50mm/2.0 summicron IV which is also uncoded but the M8 refuses to recognize the lens and does not embed any lens information into the metadata except for aperture.

[stunsworth]

It's been seen many times before. It appears to be caused by a screw head in the mount that's in just the right place to fool the sensor.

[luigi bertolotti]

Confirm : typical of the "nano" Tele Elmarit, I do not remember to have seen this to happen with other lenses (not on mine, by sure).

[beewee]

Good to know!

 

It's a shame that not all the older lenses come with built-in coding from the 70s.

 

Does anyone know if the same "problem" exist on the M9?

[bocaburger]

My 21 Elmarit pre-ASPH came up as a 90. I had to put white paint over the screw to blind it to the sensor (later I also milled and painted the correct black coding for the lens).