Sekonic L-208 Twin Mate Meter

I don't use this meter for video but I would think there are better meters for video which would highlight video shutter speeds. In a pinch this should still work since once you determine your video shutter speed it will tell you the correct f-stop. For its size this is a good and accurate light-meter.

Absolutely. Light meters like the Sekonic L-208 measure light in relation to aperture, shutter speed, and ASA/ISO. Format has no bearing on exposure respective to these variables. It will also fit nicely in the RZ67's hotshoe using its convenient accessory mounting shoe.

The measuring angle of the Sekonic L-208 Twin Mate Meter is 33 degrees.

There are two aspects to this question: 1) Is it possible to physically *see* the meter readout in low light situations, and 2) can the meter accurately measure the exposure value of night shot? With regard to Question 1, this meter doesn't have a backlight, nor does it have glow-in-the dark markings, so you'd need to rely on having enough ambient light (or a handheld light) to be able to see the meter readout. With regard to Question 2, the lowest exposure value the L-208 can measure is EV 3, which is equivalent to a 1 second exposure at f/2.8 using 100 ISO film. If you intend to shoot scenes that are darker than that, this meter probably won't be of much use to you. As suggested above, you'd be better off with a light meter that has a backlight and can measure lower exposure values (e.g., down to EV 0). The L-308 is a possible suggestion.

The Sekonic L-208 Twin Mate Meter can be set at the lowest ISO 12. The full range is 12 to 12,500 iso with 1/2 step increments. You can set it to 12 ISO and double the exposure so it matches 6 iso.

The receptor head (or lumisphere or light receiving element is on the top of curved surface, next to measurement button, and under the opaque slide, which used for switching the modes of measurement: closed for incident light and open for reflcted light. Point the receptor to the object, angle of measurement is 33 (see Manual, Chapter 6). Conform to Manual, it corresponds to 70% of angle for 50 mm standard lens of 135 film camera.

As others have said, make sure to watch a video or get some simple training.

There's a tick between ISO 200 and 400. That's what I have used.