Kim Camera Posted May 16, 2006 Share Posted May 16, 2006 Hi Does any one know what the ASA setting is for JVC GYHD100U? It will help my cinematographer when he sets up his light meter to calibrate the foot-candles and the ASA setting. Thanks Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted May 17, 2006 Premium Member Share Posted May 17, 2006 Hi, It's a video camera. While a light meter may be helpful when scouting locations or pre-rigging very big lights to give you an idea of coverage and depth-of-field, there's nothing better than just looking at the monitor, and through the viewfinder with zebra stripes on. A video camera is effectively a huge grid of spot meters. Phil Link to comment Share on other sites More sharing options...
Brian Drysdale Posted May 17, 2006 Share Posted May 17, 2006 It depends how the camera is set up. On some recent tests I did shooting on HDV with the HD 100 the Standard gamma was around 200 ASA and Cine around 125 ASA. Both had manual knee setups (plus a few other changes from the factory set up) and I used my old G & D Cinematography chart in combination with the zebras (60 to 70%), so I wouldn't say it's as accurate has using a waveform monitor. On one test report I read that the HD 100 is around a stop faster when shooting DV. I haven't tested this, but could be of interest to those wanting to use the camera mostly on MiniDV. I wouldn't use the exposure meter to determine the final exposure, only to set the lights. For smaller stuff, as Phil says you don't need a meter, only for more complex lighting rigs is a meter useful. Even then I'd have a walk through with the camera to fine tune the f stop or adjust some lights. Working by eye works extremely well. Link to comment Share on other sites More sharing options...
Kim Camera Posted May 18, 2006 Author Share Posted May 18, 2006 It depends how the camera is set up. On some recent tests I did shooting on HDV with the HD 100 the Standard gamma was around 200 ASA and Cine around 125 ASA. Both had manual knee setups (plus a few other changes from the factory set up) and I used my old G & D Cinematography chart in combination with the zebras (60 to 70%), so I wouldn't say it's as accurate has using a waveform monitor. On one test report I read that the HD 100 is around a stop faster when shooting DV. I haven't tested this, but could be of interest to those wanting to use the camera mostly on MiniDV. I wouldn't use the exposure meter to determine the final exposure, only to set the lights. For smaller stuff, as Phil says you don't need a meter, only for more complex lighting rigs is a meter useful. Even then I'd have a walk through with the camera to fine tune the f stop or adjust some lights. Working by eye works extremely well. Thanks Brian and Phil. I checked around and it looks like it's back to the waveform and. vectorscope monitors. As you both say, use your eyes. Link to comment Share on other sites More sharing options...
Peter Emery Posted June 10, 2006 Share Posted June 10, 2006 Thanks Brian and Phil. I checked around and it looks like it's back to the waveform and. vectorscope monitors. As you both say, use your eyes. I've been setting my meter to 320ASA as a guide which seems about right. A useful tool but I've been using the monitor to actually set the stop on the lens. Link to comment Share on other sites More sharing options...
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