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Messages - HurtinMinorKey

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271
EOS Bodies - For Video / Re: Shutter speed during video???
« on: May 03, 2012, 02:15:29 PM »
Shutter speed determines how long the sensor reads the image during the frame. So if you are shooting at 30 fps and shutter speed of 1/90 you'd have open shutter for 1/90 of a sec, and closed shutter for 2/90 of a sec. This affects motion blur in the frame, just like it would on a still. For the most "filmic look" you should use 1/50 on the 5dmkii at 24 fps. A film camera would normally shoot at 24 fps with 1/48 shutter speed. This is also known as  180 degree shutter angle, where the shutter is open for the same duration, each frame, as it is closed.

272
Note that the Y:Cr:Cb colour space can be converted back to RGB (it is simply a different 3-dimensional representation of the same data). Missing Cr:Cb values are filled in from surrounding values and then each pixel is converted back. This is done when viewing the movie.


This is what I was saying, they are the same essentially in terms of the relevant data they carry, with maybe a affine transformation between them.  Which is why I thought that MAYBE, the Bayer pattern, which is like a native 4:2:2 sample, might have something to do with preventing a 4:4:4 output, without serious processing/interpolation.

Also, 8bit is nice, but since monitors are only 8-bit(RGB totalling 24)  the extra bits are ONLY use full in post. Theoretically the extra-bits don't give you a better picture, if you have the proper white-balance/exposure to begin with.

I think I've read that wiki article 10 times, great stuff.

273
EOS Bodies - For Video / Re: 5D Mark III Magic Lantern wish list poll
« on: April 30, 2012, 04:07:51 PM »
Does anyone know where you can download a editor that can edit Canon firmware ?

274
EOS Bodies - For Video / Re: 5D Mark III Magic Lantern wish list poll
« on: April 29, 2012, 07:54:49 PM »
When expressing chroma subsampling ratios the 4:2:2 doesn't refer to primary colours as G:R:B, it's Y:Cb:Cr which refers to Luminance (Y) and two colour difference components Blue Difference (Cb) and Red difference (Cr)

I think that they are one in the same (G:R:B and Y:Cb:Cr) in this application, but I'm not certain.

275
EOS Bodies - For Video / Re: 5D Mark III Magic Lantern wish list poll
« on: April 29, 2012, 01:47:19 AM »
^ just to be clear, i wasn't subverted by someone else's posting, i came up with that lunacy on my own.  But I agree with the spirit of your post.

I know that the camera is 22 MP, but the Bayer pattern is set up at a 4:2:2 ratio, which that means that their are effectively 11 M Green photosites, 5.5M red and 5.5 M Blue. 

If they are alternating lines still, then there just isn't enough information for them to end up with a full HD picture using equal ratios of color information without interpolation. 

276
EOS Bodies - For Video / Re: 5D Mark III Magic Lantern wish list poll
« on: April 28, 2012, 08:14:57 PM »
Is it true that a camera like the 5D3 can't do 4:4:4 color because the Bayer sensor is set-up as 4:2:2?


277
This could potentially be huge.  The mk3 is a video beast waiting to be let out of its cage.

278
EOS Bodies - For Video / Re: 48fps - Too Fast?
« on: April 26, 2012, 12:48:15 PM »
I read the two links before you posted them. MY point was, that even thought Peter Jackson is using 48fps for smooth 3D, most of the people around here who are "whining"(as you say) want 60fps so they can have the option for slow mo.  At least that's my impression.


279
EOS Bodies - For Video / Re: 48fps - Too Fast?
« on: April 25, 2012, 05:33:07 PM »
I think most people want 60p so they have the option to slow things down.

280
EOS Bodies / Re: 1DX to ship next month.
« on: April 25, 2012, 04:48:19 PM »
It has to be out before the summer games.

281
EOS Bodies - For Video / c500
« on: April 25, 2012, 02:10:47 PM »
C500

http://cinemaeos.usa.canon.com/media-gallery.php


They got Jeff Cronenweth, David Fincher's DP, who uses RED to play with it.  Maybe he got sick of RED's performance in The Girl with the Dragon Tattoo.  He's a master, it'd be sweet if Canon could convert him.

282
yup. you have a SWEEET setup with that zeiss glass. no offense to the so called "L" division at canon but Zeiss glass is in a league of its own in both build quality and image quality. They are totally worth the premium because you get something that looks like the work of a skilled craftsman instead of the cheap mass produced feeling from canon lenses.

What premium? I thought the L glass was twice as expensive too?

283
Did you see the credits? I can't believe it took that many people to produce such a sh*tty project.  That being said, the natural night-time lighting stuff was pretty amazing. I don't think there is another camera out right now, at any price, that could have done that well in the dark.

284
EOS Bodies / Re: NEW CANON 5D-CINEMA!!! POSSIBLE LEAK!!!
« on: April 20, 2012, 01:55:30 AM »
Stick a 4K sensor in that sucker, add video features such as peaking, zebras etc, remove most unnecessary stills stuff (like 61pt AF etc) All for around the $4k mark and I'm sold.

On saying that though, its a hoax and more than likely never happen.

I'd say there is no way it'll do 4k, that would put it competition with the 1D-C. But they could make it the definitive 1080 raw camera. Higher-bit-rate, but way less user friendly than the c300.

Make it the Mustang Cobra to the c300's Porsche.




285
EOS Bodies / Re: NEW CANON 5D-CINEMA!!! POSSIBLE LEAK!!!
« on: April 19, 2012, 05:36:22 PM »
Leak or not, I have to believe this camera is eminent. The 5d3 is really just firmware away from being a monster.  The digi 5 has to be capable of at least a sustained bit-rate of 200Mbs. I'm thinking raw 1080 4:4:4. Even if they double the price(like the 1d-c), it would fit into a nice sweet spot.  It would also shut a lot of people up.   

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