D90 - Jello on Extreme Closeups

[modernPrimitive]

Greetings all,

Well I got my D90 a few weeks ago to shoot a short / docie. Of course I did my research before hand on the rolling shutter issue but stupidly never realized that "excessive motion" applies to the subjects motion relative to the framing - one tends to think of cars or trains as being "fast moving subjects", not someone nodding their head. Sadly it's pretty unfixable as the kind of movement is "organic" and trying to fix this in post would involve tons of rotoscoping and warping tools - not really viable. Shots are more or less locked off except for some framing at the beginning of the one shot.

Here are some quick clips of the jello:

http://www.vimeo.com/4625131

http://www.vimeo.com/4625146

Anyway, I just thought this info might be useful for anyone planning to shoot extreme closeups on the D90. Shot with an 80-200mm 2.8 zoom at about 2metres from the subject.

 

[Robert Altman]

There are lots of examples of CU and even ECU on the web shot with the d90 with no jello problems evident.

Just check out the following film trailer for an example--
http://vimeo.com/groups/d90/videos/4293535

Maybe the very fast shutter speeds made your problem worse--ND filters to the rescue?

 

[mattsand]

oh, we had the same problem for sure, look at the closeup in the bar scene that's the poster frame for the clip for example. we decided it added some energy to those shots though, as long as it's not too much. if you have a good operator who follows the subject motion organically it's minimized. locked down closeups are probably more of a problem.

/matt