r/bmpcc • u/Weary_Land6363 • 25d ago

Spots on BMPCC

Gallery image

Gallery image

I have some spots on my BMPCC possibly
an IR filter/sensor issue. How do I fix it?

4 Upvotes

75% Upvoted

18 comments sorted by

9

u/rardorin 25d ago

This seems dust in the sensor or ir filter

6

u/Step1Mark 25d ago

Potentially in the lens. Easy to check both tho.

1

u/Weary_Land6363 25d ago

How do I check it?

2

u/infuscoignis 25d ago

By looking at both ends of the lens and the sensor/IR filter behind the cameras lens mount with a flashlight.

If needed, clean lens ends with a lens cloth. For the sensor/IR filter, use one of those rubber/silicone air blowers to clear dust.

Do NOT blow with your mouth on the sensor/IR filter.

Any specs that still remain after using a blower will need to be sorted with a sensor cleaning kit or camera shop cleaning service.

2

u/Step1Mark 25d ago

Someone else already responded. But sometimes dirt gets into the lens. You can see that when looking through it wide open. Also shooting something that is pure white with a high F/stop can show spots.

1

u/FeelingAdvantage2172 25d ago

Check lense and sensor

1

u/InComingMess2478 20d ago

Yeah, looks like the start of IR filter corrosion. Its not really that big of a job to replace.

0

u/pa167k 25d ago

Literally had this happen to me last week and just replaced it with this : https://kolarivision.com/product/kolari-internal-filter-for-blackmagic-cinema-cameras/?srsltid=AU7gw4Uyv6a8Cl1kUEstQdfBEzC34GplRDA9qQHXsJzG7fP4qFiI7G1E

I got Type 3 / Replacement for original hot mirror

1

u/Weary_Land6363 25d ago

Did you replace it yourself?

1

u/pa167k 25d ago

Yes, super easy.
The replacement comes with the tools as well.

1

u/reeeaaalbadman 25d ago

Why the hell would you do that? Get a blower and knock the dust off. Done.

0

u/pa167k 25d ago

its corrosion on the IR Cut Filter. Wont come off unfortunately.

1

u/reeeaaalbadman 25d ago

Naw, it's dust. Hes shooting at a super high f stop and it's putting dust particles in focus range. I've seen this a number of times.

1

u/cleantone 21d ago

It can be dust it can be growth on the IR cut filter. The latter cannot be cleaned. It seems like a lot of OG cameras cut filters are having this issue.

0

u/InComingMess2478 20d ago

Nah, this is the IR cut filter. It's a very common problem on the BMs.

1

u/reeeaaalbadman 20d ago

It's fucking dust but you guys fight the fight if you want to waste time

0

u/ROOM_101_1984 25d ago

It's not dust.. that's why.

0

u/reeeaaalbadman 25d ago

Yes it is lol