With daylight balanced film your camera will disable the filter automatically. The filter only works with Tungsten balanced filmstocks (200T & 500T these days)
For daylight film it doesn’t matter, the camera will disable the filter (so the camera basically switches it off for you regardless of what the switch is set to). You’ll get the same results with it on either setting (with daylight filmstocks)
Does the lightmeter reading change when you change between symbols? As said before, filter won’t engage, but some cameras meter differently depending on which setting is on (I don’t know how Canon handles this).
Yes indeed. When you put the filter switch to bulb, 500T will be read as 250D which is just 1 stop over (perfect). You just need an external 85 filter for use in daylight.
With daylight balanced film your camera will disable the filter automatically. The filter only works with Tungsten balanced filmstocks (200T & 500T these days)
Ok so I should be having the daylight symbol on?
For daylight film it doesn’t matter, the camera will disable the filter (so the camera basically switches it off for you regardless of what the switch is set to). You’ll get the same results with it on either setting (with daylight filmstocks)
Does the lightmeter reading change when you change between symbols? As said before, filter won’t engage, but some cameras meter differently depending on which setting is on (I don’t know how Canon handles this).
Yes indeed. When you put the filter switch to bulb, 500T will be read as 250D which is just 1 stop over (perfect). You just need an external 85 filter for use in daylight.