Epic STREAK FLARING

[Adam Eden]

Has anybody else experienced this? I was shooting a circus tonight and was getting weird internal flares on the footage and it didn't matter what lens I used.

I have had this complaint from a client who rented the camera from me a couple of weeks ago.
I was shooting with my RED ONE MX also with the same set of lenses tonight and did not get any flaring like this at all which makes me believe there is something wrong with my EPIC M.

The flares are vertical smears of light from both the bottom and top of the frame and whats really strange is as you can see my panning the lens is really no where near the source light.

This happens in all modes. ie 2k, 4k and 5k.

Shot on Arri/Zeiss Light weight Zoom, T2.6 (Wide open). 4H HD , 400 ISO. This fault has been reported to me with clients using Ultra primes, CP'2 and Super speeds, and i can easily re create the same looking footage with any light source.

See link below

http://www.youtube.com/watch?v=vtVp0D0Zbzo

[Mark Andersen]

I have had problems with flaring from light sources not in frame but just out of frame. Recently had a big problem with evening bright western sky and shady a scene below the sky. Flagging it solved the problem. Stray light hitting the lens is a really issue. Matt boxes and flags are critical to a clean image. It is most noticeable in low key scenes and when the light source nearby is much brighter than the scene in camera.

[Mark Toia]

Me too... but when I cut the harsh light source with my hand from the lens face it instantly goes away.. so it is lens related coming in.

Personally I think it looks cool... You pays thousand to get that look in post :)

In short, gaurd against flares, use your matt box more efficiently. This is not a RED issue. I've seen it in Canons, Film cameras... but for sure it is there and I have noticed it.

[Jeff Kilgroe]

Welcome to mattebox / light-shield 101. You can replicate this with any camera, any lens. Just because a light is not in frame, it does not mean that you still won't get reflections or glare across the front of your lens.

[Peter Strietmann]

Looks like the trapeze artist needs to work on his timing!

[Mark Pugh]

Welcome to mattebox / light-shield 101. You can replicate this with any camera...

I disagree, Jeff...
and was wondering when this topic would emerge.

Something's changed from the Red One MX, though it's not the end of the world.
I guess there's light bouncing of the sides of the photo sites in come way- a bit like having mirrors on the insides of your matte box flaps. It definitely wasn't like this on a Red One...
I suppose that it's a side effect of a design that produces other benefits to the sensor in terms of light gathering.

[Mark Toia]

Agree..
Ive got two shots in my edit right this second with the flare in mention.. But I sort of like it :) .. It's different than the norm.. thats why I noticed it.
I used to see this now in then on the 35mm MOVIECAM and the BL... It's very bounce, reflective natured.. .. something is definitely going in there before it hits the chip ..

I really like it to be honest. Kind of organic in a way.

I disagree, Jeff...
and was wondering when this topic would emerge.

Something's changed from the Red One MX, though it's not the end of the world.
I guess there's light bouncing of the sides of the photo sites in come way- a bit like having mirrors on the insides of your matte box flaps. It definitely wasn't like this on a Red One...
I suppose that it's a side effect of a design that produces other benefits to the sensor in terms of light gathering.

[Paul Leeming]

This is pure speculation, but given that more of the Mysterium-X sensor is used in Epic compared to the Red One (and possibly exposed to light), it may well be that Super35 lenses with a tight circle (ie. little additional coverage above their rated coverage) are getting edge flaring on the limit of their optics.

Also bear in mind that with more of the sensor exposed to light, things that aren't visible on the viewfinder due to sensor cropped ratios may still be flaring below or above what you can visibly see.

Cheers from Tokyo,

Paul :)

[ericyoung]

Adam, did you have a bottom flag on the mattebox - as the flare is coming from bottom of frame?

[Ken Willinger]

This is lens flare... has nothing to do with the camera sensor.