Sensor Cover for Dusty Environments..

[Mohammed El Sharqawy]

Hi all,

not sure if this has been discussed before, not sure I have seen on the forum..

to be short,

most of the new interchangable lens cameras out there will expose the sensor to the environment when changing lens,, this would require a clean environment to protect the sensor,, that's will be a stress on the camera owner.. I think if anything touched the sensor it may damage it, or if dust or any dirt resides it will be hard to clean, especially ionized ones..

is it possible (in the new EPIC and Scarlet Design) to implement a door that locks on the sensor when changing a lens or a mount? or maybe mechanically or electronically controlled..

thanks and hope its not too late to implement such a mechanical part on the design..

 

[Tony Lorentzen]

The sensor itself is not exposed... the OLPF (Optical Low-Pass Filter) is, however. But the OLPF is much more inexpensive to swap out than a sensor.

 

[Deanan]

Also, the distance of the OLPF helps to keep dust from showing up on the footage.

 

[Pawel Achtel]

Also, the distance of the OLPF helps to keep dust from showing up on the footage.

Yes, it's brilliant solution. I hate sensor dust on a Canon. It always gets there when you least expect it. :mad2:

 

[Mohammed El Sharqawy]

The sensor itself is not exposed... the OLPF (Optical Low-Pass Filter) is, however. But the OLPF is much more inexpensive to swap out than a sensor.

thank you very much for calrification, it makes the idea better on my mind..
but another question rises here,, does cleaning the OLPF result in scratching it? what material is it made from?

 

[Tony Lorentzen]

The OLPF is usually made of several layers of optical quartz materials that are cemented together - and then coated with a anti-reflection layer and and IR-filter coating or some sort. REDs OLPF may be different, but that is generally how they're made.

There's a lot of different products you can use to clean the OLPF, but I've heard some use the Sensor Swabs: http://www.photosol.com/swabproduct.htm and this one to blow off dust: http://www.nrdfirefly.com/