DOF and Cropping take 2

Started 5 months ago | Discussions thread
awaldram
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Re: DOF and Cropping take 2
In reply to awaldram, 5 months ago

And as requested rather than bumping gums.

proof that exposure is independent of sensor size.

Leningrad 4 exposure meter used to take reading resulting in an exposure solution of

1/80 iso800 f.28

Exposure solution set on a 1.5 and 5.5 crop factor camera and images taken

expected result

if Ian correct the 1.5 crop factor will be heavily underexposed as a higher ISO would be 'equivalent'

if I'm correct exposure will be for all intents identical.

So here is  the results

Mmmm for all intents exposure is the same , me thinks someone is trying to hoodwink the forum with false statements veiled in half truths.!

If your being really critical the k3 is IMO over exposed by .5-.7 of a stop but thats probably related to the way I metered the subject and the crop factor and in any case is the exact opposite of Ian's assertions.

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Pentax Q Pentax K-3 Pentax smc DA* 55mm F1.4 SDM Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM Pentax smc DA* 50-135mm F2.8 ED (IF) SDM +11 more
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