FX9 ISO Rating Confirmation Test

While I had the light meter and exposure test chart out for the FX6 I decided to do the same exposure level confirmation test for the FX9. No nasty surprises, the FX9’s ISO ratings certainly appear to be correct. Again using a DSC Labs exposure reference chart with 18% middle grey and 90% white plus my trusty Sekonic I tested the FX9 at both 800 ISO and 4000 ISO and my light meter and the camera were in good agreement. At 800 ISO the light meter was saying f4.01 while the camera was at f4, I suspect this tiny difference is probably down to transmission losses in the lens.

FX9-Exposure-Test-800_1.2.1 FX9 ISO Rating Confirmation Test
FX9 Exposure rating test at 800 ISO.
FX9-Exposure-Test-4000_1.1.1 FX9 ISO Rating Confirmation Test
FX9 Exposure ISO rating test at 4000 ISO.

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