This is my first spot meter so please forgive my ignorance. What is the sub-scripted number value next to the F-Stop value (below, and to the right)?

Sekonic L-478D with subscript f-stop

I've read through the manual over and over, and it really isn't clear.

  • 3
    Possible duplicate of How do I read the shutter speed from my light meter? – mattdm Mar 25 '17 at 2:51
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    This seems like an exact duplicate of the other question, even if its title is not very obvious — and the implication is that the, accepted answer to the other question is wrong. – mattdm Mar 25 '17 at 2:51

The subscripted number is showing the measured value in ¹⁄₁₀ -stop increments above displayed F-number. So for instance, in the manual when it shows 5.67, it is telling you that it measured ⁷⁄₁₀ stop above f/5.6, which comes out to approximately f/7.1 (5.6 * (√2).7 ≈ 7.14).

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