Speed to ASA matching on 8mm Camera
Posted 19 December 2012 - 07:29 AM
I have some 100D regular 8mm film to shoot. The camera I am using has a meter that only allows setting from ASA 10 - 40. Any advice on how to match the setting to the film speed?
Posted 19 December 2012 - 07:30 PM
But if you're not familiar with meters or just want to go off the in-built meter for simplicity, you could set the ASA to 25, adjust the lens aperture until the needles line up, see what stop it reads on the iris scale and then close it down by 2 stops (thus compensating for the ASA change - 25 to 50, 50 to 100). I'd check the camera meter first though. If you don't have a hand-held meter to check it against you could compare the camera reading against maybe a digital SLR set to the same ASA/ISO and a shutter speed of 1/30 sec.
Or you could even just use the good old sunny 16 rule: on a sunny day, with the ASA set to the inverse of your shutter speed (so at the normal frame rate of 16 or 18 fps where the shutter speed is a little under 1/40 sec, set the ASA to 40), the camera meter should read f/16.
If the meter is a bit off, you'll need to adapt the iris compensation method. You might find for example that setting the ASA to 40 and stopping the lens down one stop works best.
Posted 19 December 2012 - 07:40 PM
This is the exact camera here:
Again, though, thanks for the tips. Very useful once I get my hands on a more versatile camera.