Epic flare issue solution

[David Battistella]

I only say this after years of defending the RED ONE as if it were my flesh and blood. I'd rather not deal with that again over such a minor issue.

I know a lot of us here have done our fair share of that and we want things to be perfect. I'm sure that's what RED wants too.

Peace
David

 

[Mark Pedersen]

Sorry, I just reread my last post and it sounded very rude. I typed it quickly on my iphone during a quick lunch break on set. I very much appreciate Doug and Adam taking the time to explain their solutions. They both seem to solve the problem and it was very generous of them to share it with the community. Especially considering Doug doesn't even own an Epic.
While these are perfectly acceptable solutions in the interim, in my experience AC's complain about anything and everything that they haven't seen before, such as mini-BNC, mini-XLR, Red Shoulder Dovetail, IR contamination, etc. Once "flare flockers" start coming loose as AC's try and clean the sensor, they will start complaining, and producers will listen.
I only say this after years of defending the RED ONE as if it were my flesh and blood. I'd rather not deal with that again over such a minor issue.

I don't think you were being rude. It's true. AC's whine about everything (no offense, it's in the job description I think!) but your point is very well taken.

Trying to clean an OLFP properly with this shit in the way is a bad idea. I still can't believe Deanon or anyone else from RED hasn't responded to the RED Community about this. All we know is there was some "side bar" approval from Jim. WTF? Why isn't that a public response to something this important?

We shouldn't have to resort to makeshift solutions on a state-of-the-art digital cinema camera that is expected to go into battle on major features.

Oops. I spoke up again.

M

 

[Mark Pedersen]

I know a lot of us here have done our fair share of that and we want things to be perfect. I'm sure that's what RED wants too.

Peace
David

Agreed, but if they want it to be perfect, which I'm sure they do, why the silence?

I can't imagine they are still evaluating.

M

 

[CJ Roy]

Obviously this is a design flaw and should be fixed by Red, unless it's that way for some other reason. Happy to use Doug's solution in the meantime.

 

[Adam C Lubkin]

Thanks to Adam Lubkin for sending me one of his Epic cams for this research.

If you need to rent an Epic, you might try him - he's tops.

Thanks for the love, Doug!

 

[Eric Z]

Ok...here's one for ya...ANYONE ever see this ? This is what i think might be a reflection of OPLF--but i don't even know what i'm talking about when i say that....but i heard enough talk about it to be dangerous...Anyway, i see this on images where the light is just right...on this image i'm using Tungsten LED lights....but i also see the same image on some shots where i have HI contrast...dark on lower half of image and then looking up to sun underwater...It's ALWAYS the same image...to me it looks like a big ladder hanging down in the middle and then there is some kind of box to far right.....

R1mx; Shooting 4k 30fps.....and I have NEVER seen this before...only recently (this last shoot).

Whoa....a purple ladder! Now that is odd.

 

[Douglas Underdahl]

Could be an internal reflection off the inside of the underwater housing, hitting the front port?

Ok...here's one for ya...ANYONE ever see this ? This is what i think might be a reflection of OPLF--but i don't even know what i'm talking about when i say that....but i heard enough talk about it to be dangerous...Anyway, i see this on images where the light is just right...on this image i'm using Tungsten LED lights....but i also see the same image on some shots where i have HI contrast...dark on lower half of image and then looking up to sun underwater...It's ALWAYS the same image...to me it looks like a big ladder hanging down in the middle and then there is some kind of box to far right.....

R1mx; Shooting 4k 30fps.....and I have NEVER seen this before...only recently (this last shoot).

 

[Douglas Underdahl]

New video shows several lenses:

http://www.youtube.com/watch?v=x6XSlvQvNAw

 

[Johnny Friday]

Could be an internal reflection off the inside of the underwater housing, hitting the front port?

Definitely was my first thought....but nothing in that reflection reveals to me something inside my housing.....the ladder thing is kind of strange...Kind of reminds me of when you leave your plasma tv on an image and then its burned into the plasma....does anyone know if that is a possibility with the sensor?

 

[Patrick Tresch]

Definitely was my first thought....but nothing in that reflection reveals to me something inside my housing.....the ladder thing is kind of strange...Kind of reminds me of when you leave your plasma tv on an image and then its burned into the plasma....does anyone know if that is a possibility with the sensor?

If this would be the case, it would also appeare when shooting a 18% gray chart or blue sky. Was this a high iso shot?

Pat

 

[Rick Darge]

Doug, when will your guard be available?

 

[Pawel Achtel]

Ok...here's one for ya...ANYONE ever see this ? This is what i think might be a reflection of OPLF--but i don't even know what i'm talking about when i say that....but i heard enough talk about it to be dangerous...Anyway, i see this on images where the light is just right...on this image i'm using Tungsten LED lights....but i also see the same image on some shots where i have HI contrast...dark on lower half of image and then looking up to sun underwater...It's ALWAYS the same image...to me it looks like a big ladder hanging down in the middle and then there is some kind of box to far right.....

R1mx; Shooting 4k 30fps.....and I have NEVER seen this before...only recently (this last shoot).

It looks to me like an internal reflection on the inside of the dome port....very common problem.

hehehe...time to change to CinePort, I think

 

[Douglas Underdahl]

Doug, when will your guard be available?

Please guys, let me know if you want me to make these up and sell them. If i get a dozen or so orders, then I will go ahead.

 

[Rick Darge]

What's the price Doug?

 

[Christopher Barrett]

Please guys, let me know if you want me to make these up and sell them. If i get a dozen or so orders, then I will go ahead.

*Raises Hand*

 

[Curran Giddens]

Please guys, let me know if you want me to make these up and sell them. If i get a dozen or so orders, then I will go ahead.

You could probably charge $400 and still get a dozen or so orders. But if it was $50 ea. I'll take two!

 

[Mike Prevette]

Pawel, Looks to me like the lens wasn't properly covered when a black balance was done and that's a residual lift in the blacks. Thinking about this more I realized something- Some plastic is semitransparent to IR, it's posible that you black balanced in a very bright room, had a lenscap on and IR Leaked through the lens cap and screwed with the readout. Try black balancing without a lens, the lens port cover on, and a sweater thown over the camera.

 

[Curran Giddens]

...and a sweater thown over the camera.

Haha. I do that too. Glad I'm not the only one paranoid about making sure no light gets through.

 

[Pawel Achtel]

Pawel, Looks to me like the lens wasn't properly covered when a black balance ...

Good point, Mike. Worth a try. Perhaps cover the lens cap in aluminum foil - no IR getting through that.

 

[Johnny Friday]

If this would be the case, it would also appeare when shooting a 18% gray chart or blue sky. Was this a high iso shot?

Pat

800 iso......i've not shot any charts....and black blance was done before the shoot began. I don't believe it is internal reflection since this is the same setup i've uses since 2007....only this shoot have i seen it.