Isn't that the same person ?
http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng

(both have props credits) and same time too......

I think the property master/actor is 1 and the cinematographer is 2. And if nobody stops me in 15 days I will fix them.