Exchange Sony A7R IV with GFX 50S?

Started 2 months ago | Questions thread
Erik Kaffehr
Erik Kaffehr Veteran Member • Posts: 3,482
Re: Double standards

Manzur Fahim wrote:

Greg7579 wrote:

matteroner wrote:

Yeah just 1.68x. What a load.

It's like getting hit by a 200lb linebacker vs a 336 linebacker.

The difference is significant no matter how you want to downplay it....

The fact is that a larger sensor gives you more room to Express your vision than the smaller sensors.

Cell phone cameras do great, but if you try to push any part of the image they fall apart pretty quick. Even in RAW.

It is the most commonly used and misleading MF vs FF talking point, and the number 1.68x is always combined with the word "just" or "only" by the FF fans.

I have seen this phrase posted hundreds of times on 6 different DPR forums.

Again, I was not picking on Erik at all. He is a MF forum member and a friend here. He could have said it innocently. I'm just making a general point here about that phrase that has nothing to do with Erik. I agree with most of his musings about MF....

Yes definitely not picking on Erik, I respect him and always like his posts and comments. He is a friend of ours. But I think from m4/3 the image quality is good, better on APS-C, then better on FF, and then better again on MF, but at this point it actually improved to a level that it makes a difference to us, but technically it is only 1.68x larger so it doesn't sound so different on paper.


I was responding to a poster who uses both 4/3 and 33x44 mm.

The area ratio compared to ISO is sort of a fact, as long as sensor technlogy is similar. So, 168 ISO on GFX  100 will give you exactly the same SNR as 100 ISO on a Sony A7rIV, because sensor design is the same.

On the other side, you can shoot the GFX 100 at 168 ISO and the A7rIV at 100 ISO but you still have 68% more pixels on the GFX.

And just to say, I think the number of pixels matter, as the pixels are carrying the information and it seems that there is more information projected on the sensor than the pixels can carry.

Best regards


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Erik Kaffehr
Magic uses to disappear in controlled experiments…

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