Posts Tagged ‘cine’

I know it might sound childish or even presumptuous, but i feel pretty uncomfortable by this whole Technicolor hype. The “Marvels Cine Style” profiles i’ve developed the past years are much more advanced, better balanced and actually delivering more dynamic range. I really am a modest guy and you’d hardly hear me bashing other software developers, but this whole Technicolor style is actually sad. It’s curve suspiciously follows our Marvels Cine Style, with the blacks dialed up (limited!) and the whites dialed down (limited too!).

Warning to all users of the Technicolor Cinema-style flat-profile! Using the Technicolor style will severely limit your dynamic range!
Blacks are lifted and whites are limited! With only 255 values between black and white for each color, snooping 10% off at both sides is simple “DR theft”! You remove another 10% of DR when using the Technicolor LUT (via LutBuddy); that’s probably two stops total!
With the Marvels profile 3.4 you use all available digital space. You can make the Marvels profile as flat as the Technicolor profile by altering it’s curve, dialing the contrast setting further down.

Marvels Film (Martin Beek, and others) have not commented on this and my opinion reflected here is my own and not that of Marvels Film. Nevertheless, the Marvels Cine Style picture profile for Canon DSLR cameras can be downloaded here: http://marvelsfilm.wordpress.com/marvels-cine-canon/

Jorgen.

Remark: see update above.

I am in the process of developing a new picture style for the Canon 5D mkII camera, that will be used for a new feature film DSLR production. Base of the style is the Marvels Cine 3.3 style, that i’ve developed for Marvels Film, using my own tools (instead of the Canon profile editor). It is NOT a replacement for the renowned Marvels Cine style, but a new experimental version that will be used to shoot early-autumn exterior scenes in Italy this year.

If you live and shoot in a less-grey/blue environment than northern Europe, consider using this style instead of the Marvels v.3.3.

New in this version is a slightly altered s-Curve to provide better luminance linearity in the 65-75% range (e.g. skin tones) and uses the Neutral style as a basis, instead of the Standard style as in the Marvels Cine v3.3 style. This to move the overall tone a bit more to green instead of the pronounced orange skintone look of the Marvels v3.3.

Everyone is invited to download, test and use this new profile. Please check back regularly if you want to get the eventual release version.
Any comments, testresults, raves and rants are much welcomed..!

Download here: http://mediatube.marvelsfilm.com/marvels_cine_v34beta.zip

By the way… all picture Marvels styles (most syles not by me, except for 3.3 and 3.4beta) can be downloaded as one ZIP archive here.

Jorgen.

Update: quick link to PP: here (zip file).

I have developed a new type of flat picture profile for the Canon “d” series video DSLR cameras. This profile has been devised and tested using the Canon 5DmkII, a MacBeth colour card, two different calibrated light sources (3200k & 5600k soft floods), Adobe Color, Adobe Photoshop  and a few software tools i have developed myself. This picture profile uses 10 S-curve node points and mathematically wraps correctly around the existing build-in Standard Profile S-Curve.

Goals were striving for correct colorimetric reproduction (no weird chroma artifacts), no gaps or bumps in the resulting curve, linear behaviour in the skin-color-exposure range and a few more points that are described in more detail by Martin Beek on his weblog http://marvelsfilm.wordpress.com. There you can download the picture profile and read about it’s uses for video shooters (i’m a colorist and mathematician, not a film maker…).

Go have a look and use it for free in your camera –  happy shooting!

Jorg.

We all know the Canon Picture Style Editor, which is a clumsy tool that lets you draw b-spline-assisted curves on a tiny grid (10 points max), and gives you some limited control over color representation; too limited to call it a professional means of color correction. Many people flood the web with home-brew picture profiles that should give professional (better?) results when shooting video with your Canon DSLR camera. Some profiles are targeted towards shooting “flat” and try to create more latitude by lowering the contrast, others aim for cinema looks by also making the picture more flat and adding color correction to mimic specific film stocks.

All very nice and noble, but done while lacking a reliable tool to do so – and that apart from people lacking total talent, insight and knowledge (sorry guys…) – also lacking the proper means of measurement…

I have been contracted by Martin Beek of Marvels Film to develop a stand-alone Picture Profile creator that can output s-curves (and any other mathematical curve) based on 16 8-bit nodes with interpolation.
This application that i will develop, using Adobe Flex (compiling an Adobe Air application for both mac and pc), will not be all that sexy in the first version, but will calculate and draw mathematical correct curves instead of accepting mouse input. Functions for drawing typical filmstock s-cruves (and others) in respect to the existing camera’s curve and profile will be provided and can be selected from a list, as well as entered as a mathematical function.

The resulting picture profile can than be loaded either into the camera or into the Canon Picture Profile Editor (don’t touch the curve!) to allow for further “color correction”.

I did not have time yet to dig into the canon DSLR SDK to see if we can maybe blow the profile to the camera directly via USB , but i think that’s a real possibility.

The first test version is planned for the first week of february and that will be (and maybe remain) an in-house application – so NOT (yet?) for distribution. I am working on it as we speak and will continue to work on it next week. I have a meeting with Martin Beek in Venlo (which is halfway between his office in the Netherlands and my home in Germany) to finalize the functional specs.