[Konvas] the Canon 7D (off-topic)

[olivier]

my idea is connect to my AJA HD and get better codec ....
nottested yet
----- Original Message ----- 
From: "Adam Frey" <thefirstrule at chainsawlinux.com>
To: "Konvas Discussion List" <cinema at konvas.org>
Sent: Saturday, October 31, 2009 11:38 AM
Subject: Re: [Konvas] the Canon 7D (off-topic)


> 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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