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so ok bit of research and found this see link , so no i don,t think we need to worry about our films lens for quite some time on digital sensors and the chairmain of cooke optics calls the whole 4k lens thing a red herring ...i think my old glass is fine http://www.cookeoptics.co.uk/techdoc/AFEEAD0010089A9585257BB40064E20F/Are your lenses good enough for that 4k high definition camera.pdf

When buying/renting a camera - most of us look for features such as resolution, dynamic range, bit rate, colour etc.... The first thing I actually look for is motion cadence. The way the image flows and feels in motion. It's such an important characteristic, I wish more attention was given to it. Modern TVs kill nice motion cadence. They run at 120hz or have this feature switched on called TrueMotion or SmoothMotion. The amount of TVs I've fixed (by turning the feature off) because friends are watching The Walking Dead like a cheap soap opera. It helps the motion when it's 1/50 shutter, progressive blah blah. But there is magic in there too. (Digital Bolex). My opinion is (for film like motion): - Panasonic GH4 (poor) - Sony FS7 (average) - Digital Bolex (the king!) Lovely cadence is a massive feature as it adds character, emotion and beauty compared to "poor" cadence where the image feels erratic and ugly. I also think lenses add to it. Cheap electronic lenses ruin the look of nice motion cadence as the image is vastly over sharpened, brittle and loses ounces of soul within the motion. I don't intend this to be a technical thread with boring mathematical numbers and nerdy bar charts/graphs and other snores. More what the "motion" of an image means to a camera and your own work. How do you see motion cadence as a feature? Is it important to you?

give vimeo a 2.5k file (even if it's just uprez'd from a 1080p aquire, and the 720/1080 streaming from vimeo always looks better than if you simply upload a 1080p file. this is what i have found anyway.

If it was the codec, compression and display the motion from a global shutter shouldn't look better than a rolling on youtube. Which it imo absolutely does. Same with CCD vs CMOS.

i have stopped watching television almost 15 years now, i do not own one anymore. i went to my friends house and they where watching tv in a huge samsung, i noticed what you said! the movement was spastic and felt out of place it was jumpy. i questioned them if they saw it and they said no, for me it was unwatchable, garbage so i guess this is what you are describing. shooting at 24fps also helps i think to what you are describing

​I tried to upload this before but it didn't work so here's the link. Jena 35mm 2.4f https://www.flickr.com/photos/119977538@N08/13053572783/

Host 'em at imgur, then attach 'em via 'Insert other media' > 'Insert image from URL', use the 'Direct image link' from your imgur upload. All given f-stops are in fact the correct aperture f-stop of a particular lens. Unfortunately, that doesn't mean much. Therefor T-stops should actually be given for any lens out there. Can't imagine the Sigma being off, the cine mod is T2.0 and just overall the Sigma is brilliant though.

​Try Mega.nz. I am very happy with it and it gives you 50GB of space for free.

You can use those cheap parts to build your Cinelux support: http://www.ebay.com/itm/DSLR-15mm-1-4-and-3-8-Thread-Tripod-Mount-Plate-Rail-Block-Rod-Clamp-5D2-5D3-/281667005669? http://www.ebay.com/itm/Tripod-Mount-Ring-for-Canon-EF-100mm-f2-8-f-2-8Macro-/250827007518? or http://www.ebay.com/itm/Tripod-Baseplate-Plate-Mount-For-Follow-Focus-15mm-Rods-Rail-Support-System-5D2-/171000567512? http://www.ebay.com/itm/FOTGA-DP3000-Tripod-Mount-15mm-Rod-Support-Base-Plate-for-DSLR-Rig-Follow-Focus-/331020232705? I used some of those in my experiments

This whole thread looks like it is dedicated to where this works with EF-S or not. Do you guys really have that many EF-S lenses?