Pentax Q mirrorless camera to be launched in August?
Photorumors posted the specs of the Pentax Q mirrorless camera. Unlike the NC mirrorless system which is supposed to use a small sensor the Q system will be based on APS-C sensors. The rumored specs are:
12MP backlit sensor
HD movie recording (720p)
RAW capabilities
Available in tow color: black and white
Vary small and compact in size
Price around 700 EUR
Several lenses will be announced including a fisheye lens
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Comment from Mistral75: Last year Sony released cameras with tra...
Comment from Byrd TT: Well, Sony has released translucent sens...- Comment from Mistral75: Yes, there was but it has been busted:
...
Comment from spam: Totally agree, all the info in this rumo...
Mistral75
12 months ago |“Unlike the NC mirrorless system which is supposed to use a small sensor the Q system will be based on APS-C sensors”
I’m not so sure.
If the sensor is backlit (see the specifications you report), it’s a tiny one and NC-1 and Q are the same camera (project code name versus commercial name for instance).
If NC-1 and Q are two different cameras and Q has an APS-C sensor, this sensor won’t be backlit.
There is not such thing as a backlit APS-C sensor. With today’s pixel density of APS-C sensors, circuitry is much smaller than photo-sites and there is no point in putting it on the other side of the sensor (backlit sensor), contrary to tiny compact sensors (their pixel density is more than 10 times higher and so is the surface used by circuitry compared to the one devoted to photo-sites).
spam
12 months ago |Totally agree, all the info in this rumor says small sensor, not APS-C.
Byrd TT
12 months ago |Well, Sony has released translucent sensor (which theoretically available since ages ago) during last year. Why can’t Pentax release BSI sensor camera then ? I agreed partially that it might not utilised the best technology available, but who knows what’s behind the scene in term of technology and such ? After all, BSI sensor has been hitting the market for ages (2-3 yrs), why can’t the dev be feasible to use it as APS-C type sensor ??
Mistral75
12 months ago |Last year Sony released cameras with translucent mirror, not sensor.
Backlit sensors do not have anything to do with translucent: it is just that their photosites are on one side of the sensor and circuitry (wiring) on the other side instead of being on the same side around each photosite, thus freeing space for photosites.
Moving the circuitry to the back of the sensor would not be cost-effective with larger sensors such as APS-C sensors because support circuits are an insignificant part on an APS-C sensor. Basically, this is because the wiring covers more of a smaller photosite (1/2,33″) but does not obstruct much of a larger photosite (APS-C).
So you would not get materially better performance using backlit technology on larger sensors (the benefit would be less than a tenth of a stop, whereas on small, high density sensors such as 1/2,33″ sensors it can be as much as a full stop), only more expensive sensors.
Miroslav
12 months ago |Wasn’t there a rumor about Nikon Q
?
Mistral75
12 months ago |Yes, there was but it has been busted:
http://nikonrumors.com/2010/09/21/nikon-q-sign-in-colonge.aspx/