Sekonic L-398M User Manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:   Standard theatrical cine film speed is 24 fps at 1/50 sec. 
 

This position is indicated by a red line on the scale.  

 
 
 

 

14 

Note:   Some cine cameras possess faster exposure times due to a narrower 

rotating shutter angle (angle of light transmitting portion). It is important to 
know the accurate film speed versus shutter angle value for your camera 
in order to determine proper exposure. Refer to the camera operating 
instructions, maker's catalogue, etc. for shutter speed information.  

Shutter angle and exposure calculation:  

2. Employing Cine Scale 
Incident and reflected light 
measurements during cine pho-
tography are performed in the 
same manner as described pre-
viously. However, since the cine 

scale 

cine camera film speed, read  the 

numerals correspond to 

aperture scale 

indication that  

pertains to the employed film speed.  

a. Read meter needle 

candle indication 

b. Transfer this number to the 

foot - 

dial scale 

and set  

Rotate dial ring 

scale mark 

If the High slide is inserted, set  

the 

mark 

c. EV value indicated by EV 

mark 

becomes the correct 

exposure value.