Question on using a spot meter with MFT.

Started 2 months ago | Discussions thread
SterlingBjorndahl Senior Member • Posts: 2,191
Re: Question on using a spot meter with MFT.

Asla wrote:

One thing to consider, hovever, is when you meter with spotmeter and put values in your camera is, how accurate is your cameras sensitivity values. That is: is your cameras iso 200 really iso 200? Or is it something like 160? Or something else? I have understood, that some kind of difference in digital cameras are not uncommon at all...

That's a really good point. Additionally, some lenses absorb more light than others; that's the difference between a T-value (Transmission value) and an f-stop. Usually it's so small that it doesn't matter, but when comparing two lenses at f/8 with other settings all manual, that can sometimes explain the difference. Less common on a contemporary camera would be a discrepancy between listed and actual shutter speed values.

The great thing about digital vs. film is that it's fast and easy to confirm that the spotmeter is giving you the results you want, so you can make +/- EV adjustments after metering.

Regards,
Sterling
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