Ways to reduce image flicker
Discussion started by Raspberry Animation , on 24 January 03:44 AM
Many (DLSR) animations have a slight image flicker in it although the camera was set up to all manual. This is an aperture control system in the camera itself. How do you stop fix or avoid it.
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Pete
Pete,
no natural lighting, wear black shirts.
Wednesday, 31 October 2012 22:53
 
Kelvin
This may be simplistic, but I found out that it helps to wear black with long sleeves when working because I become a moving bounce board for any stray light from the set. The light reflects off me and gets into shadows and I don't notice until I play it back in Hi Def that there's a gentle irregular flicker ghosting around the scene. :(
Tuesday, 03 April 2012 18:11
 
Peter Ellis
Thanks for that info on S4. Just gonna have a quick read of the article. Thanks again
Sunday, 30 January 2011 06:29
 
Raspberry Animation
Peter

Here is some info on it...no release date yet...but I will mail them for it.

The S4 is the larger brother to the S3 released last year and includes an optional Convergence module. Some of the features of the S4 include stronger motor, gearbox and chassis for larger camera packages in any orientation, built in matte bar/focus rod holders, USB communication to animation software, control of both interocular distance (distance between left and right eye), and convergence (angle of view between left and right eye). The Convergence module clips on allowing the S4 to be used with or without it.

http://www.mocoforum.com/Newsletters/dec10/leftandright.jpg
Sunday, 30 January 2011 06:15
 
Raspberry Animation
Hi Uzer,
Nope. That's not enough. We use Canon bodies with Nikon lenses (using a special machined adapter ring). That did it for us.
Sunday, 30 January 2011 06:12
 
uzer
uzer,
Hi Guys,

I have the same problem, and just wanted to make sure: Raspberry Animation, when you say "So the Canon solution was the trick for us" you mean Canon + manual lens was enough to get rid of flickering, right?
Thanks.
Saturday, 29 January 2011 16:52
 
Peter Ellis
oOo excellent, how soon to release is that then?
Thursday, 27 January 2011 09:41
 
Raspberry Animation
3D stepper. Nice!
You should wait a bit and get the S4 model then. That one can converge the camera between sides.
The current model doesn't do that.
Thursday, 27 January 2011 07:51
 
Peter Ellis
Thank you, i'm liking the kessler dollys. Although my latest investment is probably going to be the mark roberts 3d stepper

Pete
Thursday, 27 January 2011 07:35
 
Raspberry Animation
We have some plugins for After Effects too. One promblem for us that way was tha After Effects didn't like the high res 4K images. That takes a long time to deficker on a powerfuk 8 core Mac Pro with 24Gb ram. So the Canon solution was the trick for us.

If you have other questions about rigging of stop motion for factorydogs (just joined the blog). Feel free to email me at jeroen(at)raspberryfilm.com
Glad to help.

Cheers,
Jeroen
Thursday, 27 January 2011 07:19
 
Peter Ellis
Cheers pal. I think I must have got lucky with flicker. I suppose other alternitives are reducing the flicker in post. Not ideal but there are some great plug ins that do the trick. I shall have a look into your rigging details. Thanks
Thursday, 27 January 2011 07:11
 
Raspberry Animation
That is one solution, but we found that dangerous to do with our Zeiss (Nikon Distagon ZF) lenses. I've seen a lens flying on the set of the Dutch 4K production "Red-end and the Seemingly Symbiotic Society" in 2009. €2000 down the drain.
We did the folowing. Using Canon 5D MKII's together with a special adapter and our ZF lenses. The Canon cannot control the Nikon mount lenses, therefore it cannot interfere with the apperture. I think the used similar set ups for shooting "Corpse Bride".

Our rigging comes from over the world. Manfrotto, Arri, Avenger, Kessler, Matthews. The track is from Kessler Crane in the US. But you can also buy it (knowing your from the UK) in Germany. If you have a European company VAT number, you do not have to pay the VAT on it. (European law). Still pricy though.
Thursday, 27 January 2011 07:00
 
Peter Ellis
Yeh, the DLSR Cameras can cause flicker, i've got around it by obviously keeping it on manual but also, when putting the lense onto the body of the camera, don't turn it so it locks into place. Just leave it at the point before it clicks. That reduces flicker.

I have to ask after viewing your pictures... where have you got your rigs for your cameras? tracking etc

Pete
Thursday, 27 January 2011 06:28
 
 

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