Image Problem : aliasing?

[Gabriele Turchi]

lately i received a couple of jobs , shot on RED that have image problems .

I tested the R3D on :

Scartch out of teh SDI
Redcinex Out of the SDI
Davinci Out of teh SDI


scrolling the image frame by frame ,i can totally notice that 50% of the frames (means one yes , one no , one yes , one no etc...)have horizontal aliasing ,and image is not sharp ..

I work on many many red projects and i noticed this only on 2 jobs (coming from different RED cameras ...)

i am wondering if is related to the shutter aperture or a camera problem ...

I am attaching 4 consecutive frames (exported from RCX as full res tiff than cropped a )to show you the what i am talking about (take a look at the bottom left corner on the road to notice how the image gets out of focus every 2 frames introducing horizontal lines , and if you save the jpeg on you open in preview scrolling between the images you'll see the effect on the image during the playback...

PS:the camera was on the trypod ...so teh issue is totally on teh sensor level...

i am wondering if is related to the shutter aperture or a camera problem ...

g

 

[Graeme Nattress]

Garbiele, trim those 4 frames in the R3D in RC-X and send the clip to me graeme at red.com

 

[Gabriele Turchi]

that was fast....

i will do it in 10 min ...
thanks!

g

 

[Graeme Nattress]

Did you send them? I've not seen anything in my email.

Graeme

 

[Gabriele Turchi]

ops...i sent it 2 hours ago... i messed up the email address i guess...

i just re-sent them ...

g

 

[Graeme Nattress]

Got them!