Sekonic L-D758D drift

Started 3 months ago | Discussions thread
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leecamera Senior Member • Posts: 1,101
Sekonic L-D758D drift

I've had this Sekonic for about 7-8 years

Recently when I've calibrated it to my camera / lens combination, (measuring by histogram with a default on Capture One), I find I'm needing to set the Sekonic with an offset of about -0.6 to get accurate readings.

(This is borne out with portrait tests just to be sure).

A little over 1/2 stop seems a lot given that it's the tool I use for effectively calibrating my lights to.

I know I have the offset function and it has a large range, but to set my mind at ease (or not), do others have meters that they know to be off and so have to calculate an offset.

My meter is under-reading - ie it will say a little over f3.2 instead of f4

Fresh batteries, fully extended and clean dome etc. Multiple tests. Profoto lights for consistency.

Do meters do this when they get older?

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