Long shutter speed on Q2/Q2M

[anonimo_svizzero]

Advertisement (gone after registration)

I have been wondering why Leica does not extend the shutter speed on the Q2(and now the Q2M) beyond 60 seconds. A sealed sensor would not accumulate dust during long exposures, and would make it a perfect long exposure landscape camera. Does anyone know why this has not been implemented? Could it be done with a future firmware update?

 

Thank you

[Advertisement]

The Leica Q3 is available for pre-order at B&H Photo Video and Adorama

[antigallican]

Essentially they heat up. It would be like Leica abandoning strict reciprocity after the 60s. For other reasons film  also doesn't behave reciprocally after a certain point - where the point is varies with the film.

[anonimo_svizzero]

Thank you antigallican. In other words, a non-sealed sensor (like the one on the SL2) can take a much longer exposure (30 minutes) because the camera is better designed to disperse heat than a Q2 with a sealed sensor? This would make sense - except that the video function on the Q2 operates for 29 minutes. I realize that this is a different situation (lots of short exposure frames, rather than a single, long exposure one), but the sensor must still heat up and yet not degrade performance too much. Even a 5 or 10 minute exposure would make a big difference for low-light landscape photography compared to the 120 secs (not 60) allowed by the Q2 sensor, even taking into consideration some performance degradation because of the heat build up.

[PhotoCruiser]

vor 15 Stunden schrieb anonimo_svizzero:

In other words, a non-sealed sensor (like the one on the SL2) can take a much longer exposure (30 minutes) because the camera is better designed to disperse heat than a Q2 with a sealed sensor?

I dont think that it depends on non/changable lenses, it depends on the sensor and how the heat is dispersed.

In the beginning of the boom of DSLR with video functions, several photocameras - Sony for example - had the same issue while recordi ng videos.
Videorecording was limited to minutes due to sensor heat buildup rendering them mostly useless,
only Canon took care of this problem what lead them to be far ahead of the others and still the most common DSLR for video purposes.

Chris

 

[anonimo_svizzero]

Thank you Chris.