Hi all,


I am planning to start taking log exposure photos, I have seen some tutorials and also some great ideas on youtube, so I am eager to start with this.


What I am wondering though, is what is the maximum time I can leave the shutter open, before destroying the sensor ?


I have seen and heard times of 30 minutes to 1 hour, but I am afraid that I will damage the sensor.


My camera is a Canon 40D,


anyone an idea what is the safest ( longest ) shutter time ?


Many thnx for your answers


Ger


belger.nl