Another Silly Idea

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Some four thirds lenses have internal rectangular baffles. I think I've seen that some micro four thirds do as well.

So the "image circle" may not be round for all lenses; and lenses may not be designed or tested for anomalies outside the regular image area.

But multi-aspect / square / hex / circle sensor would be cool.
 
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It reminds me of when I suggested (at work) that we should have portrait shaped monitors
I once had a curious monitor (I think it was called a "Radius") that rotated between the two orientations! As I recall, the software to switch orientations was problematic, and with some update of Mac OS, the monitor became permanently one way or the other.
 
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I love square. It should be about 15.2×15.2 mm to fit the circle of MFT lenses (and 4000×4000 px would be about the right amount). But even though I enjoyed shooting 6×6 TLR, I'd prefer E-PL style over TLR nowdays. For convenience. Or PEN-F style, but with tilting screen.
Just ask nicely for a firmware update.
 

PakkyT

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Anyone with anti-reasons ??
No an anti-reason, just a slight drawback. If you did want to crop it to something like 4:3 format, you would end up with a slightly smaller photo than you would get with a native 4:3 ratio sensor.
 

Aristophanes

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While we're on the subject, my silly idea is a square sensor,
i.e. 18mm x 18mm (nominal) instead of the existing 18mm x 13mm (nominal).
That way if you want portrait format just take a square picture and crop it later. I would save all sorts of gymnastics turning the camera on its side, dislocating your wrist in the process.
It would avoid that cumbersome E-1X.
The lenses would still cover the whole square.
Years ago, 2 1/4 " square format was the norm.
For those who think they need a rectangular mask in order to compose a rectangular picture, then just have a switchable electronic mask in the viewfinder.
In theory it might add 5mm (18-13) to the height of the camera, but so what.
Anyone with anti-reasons ??
Not video friendly in a videocentric era.
 

agentlossing

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The problem is that M4/3 cameras are all made to appeal to the greatest audience possible, none of them (with the singular exception of the GH5S) are truly specialized. Which is a real bummer, in my opinion, and says that Panasonic and Olympus have never been quite confident enough in the format to get weird with it.
 
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Olympus Air A01 and the Panasonic GM1 were both pretty extreme.

Throwing the resources for a new camera with specialized features (i.e. new sensor) with a limited market is really tough in the era of declining camera sales.

(And you couldn't just use an APS-C sensor. You'd need around 17.3 x 17.3, and the APS-C sensors are 23.6 x 15.7mm. And going full frame would just be absurd.)

At least a square sensor would only be 300mm^2, and an APS-C is 380. So, excluding the one-time engineering costs, it wouldn't be crazy expensive to fabricate.
 

Moula

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(And you couldn't just use an APS-C sensor. You'd need around 17.3 x 17.3, and the APS-C sensors are 23.6 x 15.7mm. And going full frame would just be absurd.)
If you omit portrait orientation, 18.7×15.2 should be enough for 16:9 to 1:1 range. And so APS-C sensor usable. :biggrin:
 

WT21

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I like to shoot square format, so using the entire sensor space for that would be fantastic. I don't see the reason for constraining to 4:3 or 3:2 off the chip. Let people make that choice in-camera with a menu setting, if they want that.
 
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