Crop Factor, Low Light and Aperture with m4/3 lenses? Part 2

Started Jun 16, 2014 | Discussions thread
Anders W Forum Pro • Posts: 21,468
Re: Crop Factor, Low Light and Aperture with m4/3 lenses? Part 2

Just another Canon shooter wrote:

knickerhawk wrote:

Just another Canon shooter wrote:

Does anybody have a doubt, that for whatever reason, systems with larger sensors do provide more resolution?

Did you really just compare an 80mp sensor to a 16mp sensor and conclude that the obvious difference in resolution was due to sensor size?

I compared a top MF camera and to a top m43 one, and found out that for whatever reason, the larger format does provide more resolution.

So you haven't shown that the larger format provides more resolution due to it being larger.

Show me an m43 system that can match the Phase One. Feel free to link to an image of a 100mp sensor.

As we all know, there is no MFT body with more than 16 MP. However there are FF cameras with 16 MP or thereabout. This puts is in a position to distinguish the effect of the pixel count from the effect of the sensor size. Here's an example of what happens when we try to do that (best normal lens from the MFT and the FF camp based on tests by Roger Cicala of LensRentals). The figures are line pairs per image height at MTF-50, center/average, based on unsharpened output from RAW files.

Panasonic 20/1.7 on E-M5 (16 MP)

1.7 870/735

2.8 1050/875

4.0 1075/880

Leica Summilux 50/1.4 on M9 (18 MP, no AA filter)

1.4 600/530

2.0 950/740

2.8 1025/860

4.0 1110/980

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +28 more
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