GX200 mounted with the DW-6
If you wonder how hot is too hot for a camera to verge on heat stroke, here are some tests adopted from a source which quoted from another unspecified source. Reliability of the test results has not been ascertained. But for fun, let's check them out:
The test shot a HD video clip with the camera for 10 minutes under an indoor temperature of 26 degree centigrade (same below). All the tested cameras use CMOS censor.
1) The EP-L1 sensor reached 39 degree, with the default overheat threshold being at 40 degree.
2) The NX10 sensor reached 41.1 degree, with the default overheat threshold being at 43 degree.
3) The result of the NEX-5 is a bit interesting. The sensor (first shot) reached 35.6 degree while the body (second shot) reached 44.1 degree. The default overheat threshold is at 50 degree. The result shows that (a) the camera-based anti-shake function generates more heat than otherwise; (b) Sony has done a good job in giving the sensor an effective heat dispersion solution, much better than the other two cameras having regards the higher heat generated by the NEX 5 sensor.
So it is not foolhardy to assume that Sony has availed of the same solution in the SLT. But the difficulty is that the all-time phase-detection plus the anti-shake operation just generate too much heat, which is not helped by the plastic camera body with poor heat dispersion. The following shot shows that the sensor of the a55 reached 51.2 degree after shooting the video for 29 minutes under the indoor temperature of 26 degree. The threshold is at 54 degree.
The tester was shy of the a55 test result but added that the a55 sensor was measured at about 51 degree after shooting the video for over 8.5 minutes.
No wonder the camera bodies feel hot after extended use!
Comments