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Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 1:09 am
by Wander Andringa
Hi there,

I own and have been working with the Blackmagic Cinema camera lately and till so far love it.
But due to some inconvenient occasions the glass in front of the sensor got dirty. What is the best way to get it cleaned? Which tool should I use?

Greets,

Wander Andringa

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 1:18 am
by sean mclennan
might want to double check by calling BM support, but I would think any cleaning solution designed for DSLRs should be fine...

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 1:46 am
by Scott Pultz
Do you know what is on it? Something sticky like an oil or a piece of dust?

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 3:09 am
by Jules Bushell
Might want to try using a squeeze blower first though before doing anything a bit more complicated. Worked for me.

Jules

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 7:01 am
by Owen Davies
I agree with Jules.

You want to use a Rocket blower to gently remove dust from in front of the sensor.

But the most pertinent question to ask is why is this happening? You want to avoid any dirt or debris getting in there in the first place. This means ensuring your lenses are kept clean and when changing a lens get into the routine of replacing the dust cap in between changes, especially in windy conditions. Even the few seconds putting a lens back in your bag and getting the next one can let some nasties in.

Cleaning the sensor shouldn't be that much of a routine. It should only really be done where necessary. Cleaning too often will damage the glass.

I'd contact BM for their advice on the best method to use.

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 7:09 am
by Kristian Lam
There's 2 pieces of glass in the optical path. The first is the sensor cover glass on top of that, there is another glass filter with anti reflection coating. You're only able to get onto that 2nd glass filter as the sensor is sealed behind it.

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 9:27 am
by Felix Steinhardt
The glass of my camera got dirty once.

I cleaned it with these
http://www.amazon.de/Visible-Dust-Mini- ... sible+dust

1 wet swab to clean it and 1 dry swab to pick up the remaining liquid. The second step is not necessary when cleaning a usual sensor but I got water spottings on the glas.

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 4:29 pm
by Wander Andringa
So it's not dust, so blowing it out isn't an option. It's something sticky like an oil. I'm aware that these things shouldn't happen, but it did. So I'm just looking for the best solution, I figure Felix Steinhardt his solution is the best. Thanks!

I will contact BMD to be sure tho.

Cheers!

Re: Cleaning the glass in front of the sensor.

PostPosted: Fri Jun 28, 2013 6:31 pm
by Christian Schmeer
How do you know it's something oily/sticky? Does the sensor have a non-uniform colour?

Re: Cleaning the glass in front of the sensor.

PostPosted: Sat Jun 29, 2013 1:10 am
by Wander Andringa
You can just see little stains on the glass.
It's not that bad, only if you look really good you can find it back in the footage.
With the right tool it shouldn't be to hard to clean it up.

Re: Cleaning the glass in front of the sensor.

PostPosted: Tue Jun 30, 2020 8:07 pm
by femcos
i have a similar issue. Is there a solution?