Having a taste for the square format I discovered these groups on Flickr:
500x500 Group
Flickr: 500x500
Square&Black&White Group
Flickr: Square&Black&White
These photos are amazing!
I don't know what it is, but square photo's always seem to have something extra.
There are several other groups for square photo's. Go to
Flickr: Groups and search 'square'.
A camera with a square sensor would be great, and efficient from an optical point of view, but it's probably not commercially attractive because it's easy to crop a 'standard' image into a square format.
An option could be to modify a focusing screen (replacable on K5, others?), by blackening out left and right side, to help composing the image. Has anyone done this?
Edit April 10, 2013.
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Thanks to johnmflores pointing out that the K-01 natively supports square formats I also did a short inventory for the other Pentax and Ricoh camaras.
JPEG square formats, recorded pixels:
645D | Not
K5 IIs | Not
K5 II | Not
K5 | Not
K30 | Not
Kr | Not
Kx | Not
K7 | Not
X-5 | 12M (3456x3456)
X-70 | 9M (2992x2992)
X-90 | 9M (2992x2992)
K-01 | 10M (3264x3264), 8M (2880x2880), 5M (2304x2304), 3M (1728x1728)
Q-1 | 9M (2992x2992), 6M (2592x2592), 4M (2016x2016), 2M (1440x1440)
Q-10 | 9M (2992x2992), 6M (2592x2592), 4M (2016x2016), 2M (1440x1440)
MX-1 | 9M (2992x2992), 5M (2304x2304), 3M (1936x1936)
Ricoh GR (model 2013) | 3264×3264(L), 2608×2608(M), 1936×1936(S), 864×864(XS)
Ricoh GXR + S10 | 2736×2736, 2448×2448
Ricoh GXR + P10 | 2736x2736, 2448x2448
Ricoh GXR + A16 | 3264x6264, 2304×2304
Ricoh GXR + A12 | 2848x2848, 2304x2304
With reservations.
Last edited by Kobayashi.K; 04-17-2013 at 09:05 AM.