bmcc 25k oily glass
Posted: Wed Feb 17, 2016 12:28 pm
anybody here experienced this?
http://tinypic.com/r/htcwpd/9
http://tinypic.com/r/htcwpd/9
https://forum.blackmagicdesign.com/
https://forum.blackmagicdesign.com/viewtopic.php?f=2&t=44755
Ulysses Paiva wrote:I did/do.
Looks like fungus the same we get on lenses (dont sure if could be some sort of leakage coming from any eletronic inner part).
I tried to clean it a lot but most part seemed to be in the inner part of the glass.
i was glad to see that glass protecting the sensor, but to me it looked like I would need to tear the camera apart to clean it, so I gave up.
If anybody else has a good idea or did solved it well, I too would like to know.
chris.white wrote:Ulysses Paiva wrote:I did/do.
Looks like fungus the same we get on lenses (dont sure if could be some sort of leakage coming from any eletronic inner part).
I tried to clean it a lot but most part seemed to be in the inner part of the glass.
i was glad to see that glass protecting the sensor, but to me it looked like I would need to tear the camera apart to clean it, so I gave up.
If anybody else has a good idea or did solved it well, I too would like to know.
Which metabones adaptor are you using? I've had the passive MFT to Nikon F BMCC version on my camera for the entire 2 years I've owned it and have no issues. I was considering picking up the EF version so I could swap lenses with my forthcoming ursa 4.6 as needed... might think twice if that's the result
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c
Ulysses Paiva wrote:I, particularily, dont feel comfortable disassebling it. Its not on warranty anymore though.
Chris, I have the EF mount version. Never used a metabones. I does look like oil-ish thing but its probably fungus. The sh*t part here is that it is inside the camera/ behind the glass, therefore not reachable without disassembling the camera.
Anybody has other suggestions?
Andrew Bell wrote:Be careful! This 'glass' can be a IR-cut filter with some kind of coating.
Anatoly Mashanov wrote:Andrew Bell wrote:Be careful! This 'glass' can be a IR-cut filter with some kind of coating.
It IS a IR-cut filter and it HAS some kind of coating. The sensor also has some coating. And the fungus is known to etch the coating making lenses unusable so it should be cleaned ASAP.
It may be the grease, not fungus. But there is no liquid in the camera itself except the thermal grease under a cryo device and the liquid crystals in the viewfinder. The electrolyte in the battery is a thin plastic film and it is not liquid, and the thermal grease usually does not flow.
jussi rovanpera wrote:If it's fungus, it eats the glass coating, so removing the fungus doesn't help, because you still have a mark in the coating. So the only thing to do is to replace the glass.
Ulysses Paiva wrote:The question is: What to do?
Blaine Russom wrote:I'm just curious.. do you guys live in humid climates? Have you guys took them to places where they will be exposed to humid weather? I'm really curious to know how that fungus got there in the first place...? Never seen anything like that on any of my gear, including any of my BMD hardware...
Adriano Oliveira wrote:1) Is there a way to remove the IR glass, clean it and put it back?
Adriano Oliveira wrote:Hi Sill Chen,
Same problem here. My rubber o-ring needs to be replaced too, do you know its specifications? 26x1,5mm ; 26x2mm?
Thank you
Ulysses Paiva wrote: Adriano, entra em contato com a Blackmagic e conversa direitinho com eles...
Sill Chen wrote:Hey guy, I have found the solution for this issue.
I own 2 BMPCC and both their IR Glass became foggy, must be the humid climate here in Malaysia.
Both warranty are expired, and it cost too much to send it to Singapore for repair.
There aren't really a "cheap" solution out there, so I am here to provide one.
First I remove the IR glass from the front by removing the "O-ring". No dissembling require.
The whole process is shown on Rawlite.com(or refer back to previous comment of a vimeo video)
The only tool you need is a Tweezer and Suction Pen.
However, those oily mark on the glass can't be clean off. I tried lens cleaning solution, alcohol & vinegar, no luck. The glasses become totally unusable.
The Solution : Purchase cheap IR Glass filter from China via Ebay (12$ for 2)
On ebay I search "UV IR 26mm" ,there are only 3 matching result as I was searching.
26mm is the ideal size, 25mm can still fit but risk falling out when camera is shocked.
the thickness is 650nm, slightly thinner then the original Bmpcc glass.
If you have the budget, do buy the IR-cut + OLPF filter from RAWlite.com(350$+), consider it as an upgrade.
If you MUST use your camera before your replacement glass arrive, you can remove the glass to expose the sensor. Just be extra careful when you switch lens.
I haven't Color Grade my footage to check if there are any color distortion.
I am just glad that I can now use my BMPCC without breaking the bank.