Richard Vialet Posted October 13, 2005 Share Posted October 13, 2005 Hey everyone! I keep seeing posts where DP's mention rating their video camera at a certain ASA? Well what's the ASA rating on a DVX100 with a regular shutter at 48th-60th of a second, in 24p mode? And is there a way to change it?...(my guess is by changing the shutter speed?) Link to comment Share on other sites More sharing options...
Alvin Pingol Posted October 14, 2005 Share Posted October 14, 2005 At 24P and 1/48th shutter, the sensitivity should fall somewhere between 320 and 400ASA. For every +6dB of gain you add, you will gain one additional stop of exposure, i.e. 320 becomes 640ASA, and so forth. Of course, you get to a point where video noise becomes so prevalent it's no longer worth it. I prefer -3dB, light permitting, which is a half stop loss but a cleaner overall image (not that 0dB is that noisy anyway). Link to comment Share on other sites More sharing options...
Premium Member Brian Wells Posted October 14, 2005 Premium Member Share Posted October 14, 2005 I prefer -3dB, ... A nice feature not found on the DVX. Maybe Canon? Link to comment Share on other sites More sharing options...
Alvin Pingol Posted October 15, 2005 Share Posted October 15, 2005 My trusty GY-DV300 has it, I believe the XL2 does, as well... I was under the impression the DVX had -3dB gain as well, perhaps the 100B model does? :huh: Link to comment Share on other sites More sharing options...
Vinod Raja Posted November 30, 2005 Share Posted November 30, 2005 Hey everyone! I keep seeing posts where DP's mention rating their video camera at a certain ASA? Well what's the ASA rating on a DVX100 with a regular shutter at 48th-60th of a second, in 24p mode? And is there a way to change it?...(my guess is by changing the shutter speed?) Hey everyone! I keep seeing posts where DP's mention rating their video camera at a certain ASA? Well what's the ASA rating on a DVX100 with a regular shutter at 48th-60th of a second, in 24p mode? And is there a way to change it?...(my guess is by changing the shutter speed?) I have been filming all my documentary projects on 16mm and Beta/ Digibeta. Eight months back i acquired a DVX 100A , also known as DVX 102 A in India. I have caliberated the camera using my Pentax spot meter and a 18% grey card , I rate the camera at 500ASA without ND , using 1/8th ND i rate it at 64 ASA and using 1/64th ND at 10 ASA. I normally use the cine like Gamma from the menu list and tweak the black level a bit . I prefer to film outdoors using the 1/8 ND along with a .3 ND round filter (72mm) fixed to the lens. Thanks best Link to comment Share on other sites More sharing options...
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