debal banerjee

please give me the DOF chart for 16mm and 35mm please its urgent debalcam@gmail.com

i lost my depth of field chart due to an accident. can anybody give me depth of field chart for 16mm and 35mm please give me, i'll be very grateful... my email id is debalcam@gmail.com please send me

recently i watched that camera persons sometime uses mask in front of the matte box, i cant understand the utility of such mask. please explain me

how long i can wait for first bath after exposing kodak vishion2 series film. please help me and tell me the safe buffer time