jaapv
RFF Sponsoring Member.
Not really. Judging by forum posts the original 1/8000th shutter has fewer problems than the newer 1/4000th, but both are pretty reliable and can still be repaired. The high ISO story is more of a saga, but it comes down to: If you use recent Photoshop/Lightroom versions and expose liberally it gives excellent files up to ISO 1250, usable to ISO 2000 ad if you do the uncompressed trick as described elsewhere in the forum the noise goes down even more.Are there any common issues with the M8 you know of?
There are no specific breakdown things.
One thing that all digital cameras have in common is a stuck/dead pixel or pixel row. Cause: Neutron strike from cosmic radiation.
Usually it can be handled in postprocessing.
A sensor can be remapped by Leica (reports on cost vary from free to reasonable)
A rangefinder that needs adjusting can be done quickly and for a small fee by any competent camera repairman or even in DIY.