Exposure Value Numbers (EV)

hka · Apr 1, 2007

I have bring back this thread to life because I am still confused of how to calculate my exposer time or f-stop.
Suppose I have a EV reading of 9 and use a filmspeed @80 ISO. I set de f-stop to f11 and wanting the Excelsheet automaticaly calculate the exposer time.
How to do that?

David H. Bebbington · Apr 1, 2007

hka said:
I have bring back this thread to life because I am still confused of how to calculate my exposer time or f-stop.
Suppose I have a EV reading of 9 and use a filmspeed @80 ISO. I set de f-stop to f11 and wanting the Excelsheet automaticaly calculate the exposer time.
How to do that?

I know absolutely nothing about any Excel tables, but any exposure meter with EV numbers will give you the answer - 1/4 second!

Regards,

David

Roger Hicks · Apr 1, 2007

David H. Bebbington said:
I know absolutely nothing about any Excel tables, but any exposure meter with EV numbers will give you the answer - 1/4 second!

Regards,

David

Dear David,

Well.... Yes.

I was puzzled too. Why Excel? BURN THE HERETIC!

Cheers,

R.

Helen B · Apr 1, 2007

If you want to use Excel instead of an exposure meter, the formulae are in post 18 of this thread.

Best,
Helen

hka · Apr 2, 2007

Thanks Helen that was very helpfull.

It looks pritty overdun to do this in a excelsheet but the reason is that I put my two EV readings for the ZS in the PDA. After finding the Zone V reading, with its correction for Compression or Extraction dev., I have to look again on the meter or a table for the right speed or f-stop.

Exposure Value Numbers (EV)

hka

David H. Bebbington

Roger Hicks

Helen B

hka

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