Mohammad Masud Rana

complicated.

actually there is no big differences between s270 and z7. The differences are structural. S270 has a adjustable shoulder strap and z1 has not nothing like that. S270 can record 4 channel audio, on the other hand z7 has two channels for recording the audio. S270 supports and can record on Standard DVCAM 184 m cassettes but z7 only support minidv/hdv cassettes. but all the operational features of the both cameras are same. but i found z7 more comfortable for shooting.

I am a young cinematographer in Bangladesh, mostly working for television productions. Among the available formats I usually get the Sony dsr 400 camcorder to use. While working with this camera I sometimes got confused with the use of Master Black and Master gamma. I want to what is the functionality of these two factor. I need a detail explanation of them. If anyone can help me understand those I will be grateful. Thank You