Sony Fs 7 Manual

									October	2016	v4	31	Gain to ISO conversion chart  Gain db Level ISO Rating  0 db 500 ISO +3 db 800 ISO +6 db 1000 ISO +9 db 1600 ISO +12 db 2000 ISO +15 db 3200 ISO +18 db 4000 ISO +21 db 6400 ISO +24 db 8000 ISO +27 db 12800 ISO +30 db 16000 ISO    Shutter Speed  Shutter  speed  is  the  length  of  time  when  the  sensor  inside  the  camera  is  exposed  to  light.  The amount of  light  that  reaches  the  film  or  image  is  proportional  to  the  exposure  time.  1/500th  of  a second will let half as much light in as 1/250th.  When  shooting  in  25p  the  standard  shutter speed  tends  to  be  1/50  or  1/60.  The  rule  is  what  your frame rate is you double for the shutter speed to get a nice image. The higher you go the smooth your image will be.  To change the shutter speed press the shutter speed button on the left hand side and select what speed you want.            
						

									October	2016	v4	32	CineEI Mode  This mode captures everything the camera can see. When viewed on a normal monitor the images look flat and washed out. All images shot using CineEI will need to be graded in post.  When changing the base setting to go from custom to CineEI (page 9) you will also need to set the colour space as well (page 10).      Monitoring and Viewing S-Log 2/3  To make life easier when shooting with S-Log 2/3 use a monitor look up table (MLUT)  To  set  the  MLUT  to  in to  Menu  >  monitor  LUT  >  SDI  2 (IMPORTANT  leave  MLUT  off  SDI  1  and internal recording). Use the Rec709(800) gamma curve MLUT it converts the image to standard TV gamma so that if the image looks right it is right.  This  makes  exposing  your  images  easy  as  you  can  see  a  true  image  but  still  recording  in  S-Log. You would do everything as you would be using the LUT as you would with S-Log.  To set the Rec709 MLUT Menu > Video > Monitor LUT > Viewfinder > On              SDI 2 > On              HDMI > On LUT select P1: 709(800%) standard TV. Zebra’s not effected use as normal can use 70% or 90%.       
						

									October	2016	v4	33	Monitor Look Up Table (MLUT)      
						

									October	2016	v4	34	 High and Low Key Functions  The MLUT cannot show you everything that the camera is seeing, the camera is recording 14 stops of dynamic range where the MLUT can only show you a small amount of that.  The high and low key function can help with that but it must be assigned to a button. To assign a button go to Menu > System > Assignable Button > Button 2 Auto Irisdoes not work in CineEI mode)  Press assign button 2 once and the image darkens to show the highlight areas to check they are not over exposed.  Press assign button 2 a second time and the image lightens for the shadows to check for under exposure.    
						

									October	2016	v4	35	 By going through this cycle you can see the whole of the dynamic range that the camera is recording. Press the assign button 2 a third time and will return to normal.   CineEI and Exposure index  EI = Exposure Index, this allows you to rate the cameras ISO to alter the midpoint of the dynamic rate.  The  cameras  native  setting  is  2000  ISO.  Changing  the  EI  doesn’t  change  the  recording  ISO but changes how affective it is.  To adjust the EI you use the gain switch on the left hand side but you want the gain/EI high, medium and low settings to be less than the native 2000 ISO to get the best image. To change time, go to Menu  >  Camera  >  ISO/Gain/EI and  change  the  setting  to  be  high  at  2000/6.0  E,  medium  to be 1000/5.0 E and low at 500/4.0 E  Recording at 2000 ISO can effect grading where it produces too much noise. EI does not change the sensitivity of the camera it only effects the MLUT. Halving the ISO = minus 1 stop, doubling the iso  =  plus  1  stop.  Stopping  the  EI  down  and  opening  the  aperture  to  expose  your  image  so  the camera is still recording at 2000 iso your image is brighter so when you go into post you bring your levels  down  reducing  the  noise  and  a  clear  image.  It  does  have  cons  that  some highlights  maybe over exposed but you can see more into the shadows. Use 1000EI or 800EI for most general filming.