Crop Factor, Low Light and Aperture with m4/3 lenses?

Started Jun 15, 2014 | Discussions thread
eyeswideshut Regular Member • Posts: 333
Re: A picture is worth...

Anders W wrote:

Just another Canon shooter wrote:

Anders W wrote:

Just another Canon shooter wrote:

Sergey_Green wrote:

Anders W wrote:

On the contrary, the dark tones cannot as a rule be "cleaned" without ill effects. Consider for example the hair of the girl in the example to which I link below.

http://www.dpreview.com/reviews/image-comparison?attr18=lowlight&attr13_0=oly_em1&attr13_1=sony_a7&attr13_2=sony_a7r&attr13_3=nikon_d800&attr15_0=raw&attr15_1=raw&attr15_2=raw&attr15_3=raw&attr16_0=3200&attr16_1=12800&attr16_2=12800&attr16_3=12800&normalization=print&widget=1&x=0.8342357734262059&y=0.2753099540100277

This comparison is not done with equivalent settings.

Yes it is. I compared ISO 3200 on MFT with ISO 12800 on FF, i.e., a two EV difference.

Wrong. ISO has nothing to do with EV.

Yes it does. Let me explain:

Suppose the MFT user can take a certain photo at 25 mm, f/2.8, 1/100 s, and ISO 3200. To capture the same photo, the FF user needs 50 mm, f/5.6, 1/100 s, and ISO 12800. Do you get it?

Have you tried varying shutter speed and leaving iso untouched?

I think this equivalence back and forth is beginning to cloud all our minds

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Cheers
eyeswideshut

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