Ryan Patrick O'Hara
Veteran
Similar to built-in ND but in more flavors. Now I have to wonder why built in NDs, such as the ones found on AF100 or F3 don't disrupt the flange distance between lens and sensor. Maybe they are much thinner?
http://www.fdtimes.com/news/clairmont/clairmont-in-camera-alexa-filters/

http://www.fdtimes.com/news/clairmont/clairmont-in-camera-alexa-filters/
