Originally posted by ogl It's fantasies of forum users.
I've read in presentation that all lenses are developed and optimized specially for size of sensor.
Large sensor - do you mean 1/1.65"?
It's CCD sensor and HOYA refused current CCD sensors for Pentax Q. They've been waiting for BSI CMOS from Sony.
Anyway...Larger sensor means the circuit technology different from Pentax Q body...Do you acquainted with circuitry engineering?
It will be ANOTHER new body with larger sensor. Don't forget - Pentax Q has Shake Reduction mechanism too.
It's unreal to put LARGER sensor to this body. And it's also unreal to put into K-5 body larger sensor.
Even 1 additional mm inside Pentax Q body changes all work of circuit engineer.
I doubt they've completely locked the form factor into a single sensor size, especially given that they have only one supplier in Sony. There does appear to be a few mm added support space.
My benchmark for sufficient sensor size has always been the Fuji F30 at 1/1.7" (7.49 x 5.52 mm). That camera had exceptional low-light performance for a P&S.
Fuji used the near same form factor for its F-series between the 2.0 and 1.6 sensor sizes, and they pumped those out at regular intervals. The difference for the Q might might be equivalent to Canon's FF vs. APS-H (imagine a V.2.0 WR body, for example).
The Panasonic LX-5 is 1/1.63"
The Canon G12 is 1/1.7"
The Canon S95 is 1/1.7"
The Nikon P7000 is 1/1.7"
The Olympus XZ-1 is 1/1.63"
I am surprised/disappointed that Pentax went down what could effectively be "2 stops" in sensor size compared to the competition. If that is a locked in issue, then there will be problems for sales, especially to higher-end prosumers and their after-market $$$. I suspect the Sony sensor leapfrogs the list above considerably in technical achievements, but that lead will not last.
What's more surprising is they did this at a much higher price point. Everything else about the Q makes sense and is innovative/interesting/fun. This sensor size-cost divergence is the Achilles' Heel.