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Messages - charlesqian

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EOS Bodies - For Video / Re: ND filters for video? Suggestions?
« on: April 21, 2013, 03:07:34 PM »
I have a set of Tiffen NDs (.3, .6, and 1.2) that seem to work quite well without being too expensive. I generally favor B&W filters, but opted for the Tiffens for cost reasons and have not found a reason to regret it, yet.

I have had issues with variable ND's negatively affecting the image on a DSLR when used on the Canon 70-200mm. Thus, I try to stick with fixed ND's, if I can get away with it.

Variable ND is definitely the way to go, I think.  It all depends on which brand you pick.  There are quite a few brands in the market but I think only two have been proven to be the best ones: Singh-Ray and Heliopan.  Singh-Ray gives you up to 8 stops.  Fixed NDs are just too inconvenient. 

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Thanks Charlesqian for your additional information.

I just noticed a comment on Vimeo by a Swiss 1DC user: "Now, Canon won't deliver any 1DCs in Europe currently. When pressed, my Canon contact here said the new 25p firmware needs a hardware modification/upgrade. That would mean that already delivered cameras will have to go back. But there isn't anything official out on this yet."

This definitely makes me to postpone my decision, and, July is getting closer...


That's weird, many european sellers are selling 1D C as normal, if it does require a massive product recall then Canon should have informed the dealers.

I agree.  To change or make modifications on 1DC's hardware would be highly unlikely;  I think from the very start, Canon already had the plan to do the 25P, so technically they should have already known it's feasible.  Glitches on software are possible. 

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Thanks Charlesqian for your additional information.

I just noticed a comment on Vimeo by a Swiss 1DC user: "Now, Canon won't deliver any 1DCs in Europe currently. When pressed, my Canon contact here said the new 25p firmware needs a hardware modification/upgrade. That would mean that already delivered cameras will have to go back. But there isn't anything official out on this yet."

This definitely makes me to postpone my decision, and, July is getting closer...

So you live in Europe and have to use the 25P?

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Based on my experience with 1DC at 4K mode, it will heat up around 30 minutes but I finished filming the 128GB CF card, which is a little over 30 minutes of clips despite the white warning icon. 
Thanks charlesqian, that was very useful information. Do you shoot indoors (with air-conditioning) or outdoors? Ambient temperature?

The instance I mentioned above was indoors, recording a high school theater play, and the ambient temperature should be around 60F.  I don't think it turned on the AC that night in the theater.

I have since then also shot something outdoors but did not shoot continuously.  Honestly, I did not test how long it would take to get the camera automatically shut down because of the heat via continuous recording.  It seems to get that white warning sign pretty easily and the camera gets warm noticeably but I have never seen the red warning sign yet.  I normally shoot intermittently with any camera to re-compose or change angles etc..

But the one thing I'd like to mention is its Super 35mm mode which produces outstanding images and eats up less memory. 

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Anyone know of some good (cheaper) video recorders to use with that clean HDMI out that would be better than the compressed video on the SD card?


yes.  Atomos Ninjia2 is a bit on the expensive side; the alternative will be Blackmagic Design HyperDeck Shuttle 2 SSD Video Recorder at $327.75, which does not have a monitor, but will do the work.

http://www.bhphotovideo.com/c/product/841023-REG/Blackmagic_Design_HYPERD_PT2_HyperDeck_Shuttle_2_SSD.html

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Would 1DC sensor overheating be a problem with 1 hour of continuous 4K video? I participate in marine archealogy projects and plan to video scan entire wrecks with the limitation of 2x128 GB media, i.e. 1 hour per dive. The 1DC would be housed in a tight aluminium underwater housing with hardly any air circulation. But, the housing is cooled externally by 4-20 degrees Celsius water.

Currently I do similar work with HD video and this is a very useful technique to explore unknown historical wrecks before further research. I have a 200W/16000 lumen HMI lamp, so exposure and motion blur will not be a problem.

I am asking this question due to the 1DC overclocking of the DIGIC processors and additional heat sink(s).

Based on my experience with 1DC at 4K mode, it will heat up around 30 minutes but I finished filming the 128GB CF card, which is a little over 30 minutes of clips despite the white warning icon.  But most of the tme, people don't shoot that long before they stop the camera.

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EOS Bodies - For Video / Re: What's that accessory in the picture?
« on: April 12, 2013, 10:59:31 AM »
saw this article in the nytimes about Anthony Bourdain and saw this picture of him and his videographer. Anyone have an idea what that black box that's pressing against the guy's forehead? it looks painful to be him...




It's a sunhood for an external monitor, looks like a SmallHD monitor.

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EOS Bodies - For Video / Re: Canon 5D Mark iii HDMI Clean Output?
« on: April 12, 2013, 10:55:00 AM »
So I heard Canon Announced that in the April of 2013, or next month, the Canon 5D Mark iii would get an update which would allow for a clean HDMI output. Does this mean that we can use an external recorder such as the BlackMagic Hyperdeck Shuttle for external recording? If so, then can we actually record at a higher fps such as 60p at Full HD? if not, then what kind of impact does this have on videomakers? Thank You in Advance!

It won't give 60p. Hopefully the better compression will make a noticeable difference. Depends how much of the problems occur before the compression stage. Maybe not.

It won't give you noticeable difference, trust me. I'm using Canon 1D C with Atomos Ninja 2 external recorder. if you don't do heavy colour grading or keying/compositing, there is no difference at all.

1DC codes a lot better in camera than the 5D3 though no?

Only in 4k, so far as I know...

The 5D has a bad codec but also a bad image from the sensor. Fine for what it is but if you want good video step up to the C-line. In motion there will be no visible different in the HDMI clean signal. Blown up to 400% you'll begin to see something. For chroma keying MAYBE you will get a minor difference. This is a spec sheet upgrade so as not to fall behind the D800 in terms of perception, nothing more.

Actually 1DC's 4K is superb, and its Super 35mm is too.  Full HD is just so so.  It has a 60p slow motion in Full HD but not that good.

I think Canon's firmware update has two elements: 1) uncompressed clean HDMI output; 2) mirroring LCD and an external monitor.  The uncompresed clean HDMI output will let an external recorder such as Ninjia-2 records directly from a camera's sensor at 10 bit, 4:2:2 using ProRes or Avid DNxHD codecs.  It will have some difference compared with the original 8-bit, 4:2:0 with cameras like 5D MKIII etc..

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