[Konvas] Cinema Digest, Vol 42, Issue 20

Adam P.Jones adamcjx25 at yahoo.com
Sat Oct 31 18:59:07 CDT 2009


Compressor also introduces a gamma shift.

--- On Sat, 10/31/09, augie.arredondo at gmail.com <augie.arredondo at gmail.com> wrote:

From: augie.arredondo at gmail.com <augie.arredondo at gmail.com>
Subject: Re: [Konvas] Cinema Digest, Vol 42, Issue 20
To: "Konvas Discussion List" <cinema at konvas.org>
Cc: "Konvas Discussion List" <cinema at konvas.org>
Date: Saturday, October 31, 2009, 5:14 PM

Why not usecompressor?

Sent from my iPhone

On Oct 31, 2009, at 2:40 PM, "Adam P.Jones" <adamcjx25 at yahoo.com> wrote:

> Streamclip introduces a gamma shift. Media manager is the best to convert to prores. Slower than Streamclip but more acuurate.
> 
> --- On Sat, 10/31/09, w s <wm_shannon at yahoo.com> wrote:
> 
> From: w s <wm_shannon at yahoo.com>
> Subject: Re: [Konvas] Cinema Digest, Vol 42, Issue 20
> To: cinema at konvas.org
> Date: Saturday, October 31, 2009, 1:37 PM
> 
> Hi Colcam,
> 
> for smooth H264 playback, try a free program called Mpeg Streamclip to convert your H264 into apple pro res files. The files will grow to four times the size, (I'm assuming that your four disk raid array will have at least enough temporary space) but will not lose quality, and play back smoothly. Effects and rendering will speed up too.
> Will Shannon
> Critical Mass Media
> 
> 
> 
> 
> 
> 
> ________________________________
> From: "cinema-request at konvas.org" <cinema-request at konvas.org>
> To: cinema at konvas.org
> Sent: Sat, October 31, 2009 10:00:07 AM
> Subject: Cinema Digest, Vol 42, Issue 20
> 
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> Today's Topics:
> 
>    1. Re: the Canon 7D (off-topic) (Adam Frey)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sat, 31 Oct 2009 12:38:51 -0400
> From: Adam Frey <thefirstrule at chainsawlinux.com>
> To: Konvas Discussion List <cinema at konvas.org>
> Subject: Re: [Konvas] the Canon 7D (off-topic)
> Message-ID: <4AEC681B.3060207 at chainsawlinux.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> colcam at aim.com wrote:
>>   Canon has been testing a "larger chip" dv camera in EOS mount-- no mirror.
> 
> No mirror, meaning deeper seated lenses? So it's possible we could use
> our OCT18/OCT19 mounted lenses? That would be great - of course, I hope
> the Canon-without-a-mirror is as affordable as the 7D is...
> 
> I'm happy with the HD image on the 7D. At 48Mbps, the H.264 won't play
> back on my 2Ghz laptop without heavy skipping. I'm currently putting
> together a corporate promo that I shot with both the 7D and the Z1U
> (roughly half and half). I'm having a harder time in post with the 7D
> footage, just because it's twice the size (48Mbps vs 25Mbps) and the
> H.264 compression is so much heavier on the encoding (meaning it needs a
> much faster computer to decode - btw, the raw footage even skips on my
> 8-core Mac Pro under both Premiere and Final Cut, running on a 4-disk
> RAID0 array). Doing the math, it's about 360MB per minute, which is
> already some serious throughput, plus it has to decode the video.
> 
> Looks-wise, the 7D footage blows away what I shot with the Z1U. Much
> like the Z1U, the 7D does seem to be a little noisy in the shadows
> though, but I shot almost everything at 1600 ISO, which may be part of
> the culprit (will be doing a few more tests this weekend). I'm not going
> to put it side-by-side with the Konvas just yet, but eventually I'd like
> to do a comparison, just for my own personal notes...
> 
> BTW: I wonder if it could be a matter of time before we see a higher
> H.264 bitrate coming off the camera? Could we be so bold as to hope for
> a raw-esque codec as well? Hmmm... Just Bing'd for it and this popped
> up: http://reduser.net/forum/showthread.php?p=478766 - So, we may get
> RAW video from the Canon after all...
> 
> And, speaking of which, if the footage does get into "RAW" territory,
> will our older LOMO and other cine lenses hold up against the Canon
> sensors (since Digital does not equal Film)? This is pure speculation,
> but I'm assuming the sensors will be more critical, since they don't
> have movement/registering like film. I'm also assuming Canon will keep
> building their cameras & sensors to look their absolute best when used
> for still photography and with still lenses. The use of cine lenses will
> probably not be on their radar; especially older cine lenses.
> 
>> BTW, has anyone else posted things lately and not gotten them?
> 
> This is most likely related to your mail server(s) being busy, more than
> an issue with the list server. The list server is sending the messages
> out, and also putting them online. You can always check to see if your
> message posted to get an idea if it was a problem with your mail server
> or a problem with the list server:
> http://konvas.org/list-archives.html
> 
> Think about it as if it were a phone call: you call, you get a busy
> signal, you call back later. But after a few calls, where it's busy
> every time, you eventually stop trying (and drop it), or else your other
> workloads would get too backed up. Much like a phone call, the list
> server has a limit on how many times it tries to connect to everyone's
> individual mail server before it drops the individual message out of the
> queue (it only effects people who have very busy mail servers - everyone
> else on the list should receive the message without issue).
> 
> 
> Cheers,
> 
> Adam Frey
> Director/Cinematographer
> Crimson Chain Productions
> http://crimsonchainproductions.com
> Cell: 301-639-7146
> 
> Crimson Chain Productions
> PO Box 35
> Libertytown, MD 21762
> 
> 
> 
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> 
> End of Cinema Digest, Vol 42, Issue 20
> **************************************
> 
> 
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