A home made Telecine machine.

[MovieStuff]

I have removed my comments from this thread because they do nothing to further the discussion. My apologies to the forum for sidetracking this thread.

Roger
http://www.moviestuff.tv

[sophocle]

While we are on the topic,

Someone post some 64T clips already!!!!

[paulcotto]

JVC is coming out with a new HD camera that uses a hard drive to record instead of tape. The great thing is it has digital uncompressed output via firewire. It also uses an interchangable lens system so no need to remove the lens like the sony. I would love to have one for telecine work I am sure it will work fine with a Mac with no driver problems.

http://www.ggvideo.com/jvc_gy-hd100.htm

Hey Eric got your check book handy?

Regards,
Paul Cotto

[StopMoWorks]

regarding mechanical shutters, the typical life span of a canon digital rebel is about 800,000 accutations. eric

800,000 exposure cycles?? 8O The highest I heard/read about exposure cycles for DSLR was 200,000 for a very high end model (i think it was one of the pro Canon DSLRs). Typical exposure cycles I hear/read more often is around 100,000 for a DSLR of reasonable quality.

yes, i supposed i am blessed, or lucky, or one of the few who has ACTUALLY trigged this many shutter accuations. most everything i read is assumptions, or people saying how they read or heard from the manufactures, etc. and so on. i can only account for my canon digital rebel, as it, and my kodak dcs/c are the only two mechanical shutter cameras i have employeed in digitzing my motion picture films. and i have even taken this camera apart a few times, naturally cleaning it during the process. i trust it still has a good number of accuations left in it ... used it a few moment ago in fact to test our it's usb connectively with some code/software of ours.

Not assumptions but doing some research of what many others have posted on other forums .... their comments and experiences. I posted earlier .... just a micro small sample of links of such discussions. As stated before, it seems camera manufacturers ocassionally disclose in their specs, the approximate shutter life, but "only" for the higher end cameras. On message boards discussing this, the most frequently mentioned is about 100,000 shutter cycles. Also, as I stated before, the highest that I came across is approximately 200,000 cycles longevity. I remember now which camera .... it is the Canon EOS 1D Mark II and that is stated in their specs. No where, anywhere in doing research/reading about this, have I seen quoted, the almost unbelievable"800,000 shutter cycles". You indeed have the Gods watching over you and rewarding you with such a gift of an almost supernatural & indestructable digital still cam :roll:

what involvement do you have with stop motion? you make stop motion animation? or make stop motion animation products?

Click the "www" graphic link which is at bottom of this post to see my website. I am also a long time member & regular participant of a stop motion message board. My interest about DSCs has been through discussions at the forum in which animators are exploring and some are adapting DSCs for animation purposes. They tolerate some of the bugs and glitches using DSCs for animation, but in their striving for highest resolution for possible transfer for HD format (or 35mm, if they can afford that!), they tolerate the DSCs issues and have improvised workarounds ..... not ideal but adequate.
LIO 8)

[StopMoWorks]

JVC is coming out with a new HD camera that uses a hard drive to record instead of tape. The great thing is it has digital uncompressed output via firewire. It also uses an interchangable lens system so no need to remove the lens like the sony. I would love to have one for telecine work I am sure it will work fine with a Mac with no driver problems.
http://www.ggvideo.com/jvc_gy-hd100.htm
Hey Eric got your check book handy? Regards, Paul Cotto

Wow! Yes .... the unique feature ...... image is uncompressed. I knew it would be a matter of time when this would be available. My understanding is current HD camcorders using miniDV tape, HD is compressed. $Pricey$ indeed . Hopefully with time .... $$$ will slightly come down or other similar offerings later from other manufacturers. Will have to keep my eye on the development of this.
LIO 8)

[christoph]

The great thing is it has digital uncompressed output via firewire.

err, firewire is way to slow to transfer an uncompressed HD signal through it .. that would be over 100MB/sec for 720p (firewire is 400mBIT/sec theoretical max, FW800 is 800mBIT/sec, both is wy too slow in real world) :/
and the camera would be hugely expensive, look at the varicam with HD-SDI outputs if you need this kind of gear.

++ christoph ++

edit:
ok, you could output uncompressed through component or an optional HD-SDI module it seems... nice, but not cheap

From U.S. announcement press release:
http://pro.jvc.com/prof/Attributes/pres ... ture_id=08
"In addition to providing HD true progressive 24 P superior quality recordings, the GY-HD100U outputs uncompressed 720/P60 HD, making it ideal for live broadcasting, remote news and POV applications. An optional module converts the uncompressed signal to HD-SDI for use in a variety of user environments."

[StopMoWorks]

I'm not that expert in knowledge about the minute technical details. Any idea how long it would take, for example ..... one frame/image transfer to hard drive ..... seconds? minutes? Is it uncompressed? I do not see that mentioned in JVC's specs. It may be slow for film to digital transfer units but could be sufficient for animation use ..... which is sloooow process, anyway.

EDIT: Oh I see your edited post. Hmmmm ..... so it is uncompressed :!:

[ccortez]

edit:
ok, you could output uncompressed through component or an optional HD-SDI module it seems... nice, but not cheap

Isn't this similar to the approach of the Sony HDR-Z1? Component output directly from the cam to the 'puter is the way to get uncompressed? One of these days, I'm going to install the DeckLink card and try a short HD transfer with that thing. One of these days... :roll:

[paulcotto]

I will need to do more reseach to see if I am correct.

Regards,
Paul Cotto

The great thing is it has digital uncompressed output via firewire.

err, firewire is way to slow to transfer an uncompressed HD signal through it .. that would be over 100MB/sec for 720p (firewire is 400mBIT/sec theoretical max, FW800 is 800mBIT/sec, both is wy too slow in real world) :/
and the camera would be hugely expensive, look at the varicam with HD-SDI outputs if you need this kind of gear.

++ christoph ++

edit:
ok, you could output uncompressed through component or an optional HD-SDI module it seems... nice, but not cheap

From U.S. announcement press release:
http://pro.jvc.com/prof/Attributes/pres ... ture_id=08
"In addition to providing HD true progressive 24 P superior quality recordings, the GY-HD100U outputs uncompressed 720/P60 HD, making it ideal for live broadcasting, remote news and POV applications. An optional module converts the uncompressed signal to HD-SDI for use in a variety of user environments."

[downix]

Last time I checked, Firewires theoretical maximum was 400 Mega-bits per second. (hence why it's termed Firewire-400) Trying to fit 270 Mega-bytes per second might be a tad cramped. But I'm no expert here.

[christoph]

Last time I checked, Firewires theoretical maximum was 400 Mega-bits per second. (hence why it's termed Firewire-400) Trying to fit 270 Mega-bytes per second might be a tad cramped. But I'm no expert here.

well, 720p is a bit less than 270mb/sec (which would be 1080i 10bit or something).. but anything more than 30mb/sec and fw400 will choke badly ;)

++ christoph ++

[christoph]

One of these days, I'm going to install the DeckLink card and try a short HD transfer with that thing. One of these days... :roll:

one of these days when you always want to lug around a powermac with an 5 disk raid on the set? better make sure you have a generator with you, and never mind making tracking shots ;)

HDV is pretty fantastic for it's data rate, and DVCPRO HD should fit the needs on most short films.
++ christoph ++

[ccortez]

one of these days when you always want to lug around a powermac with an 5 disk raid on the set? better make sure you have a generator with you, and never mind making tracking shots ;)

No, no... a TRANSFER, not a SHOOT! 8O

But now that you mention it, just set the whole thing up in the back of a pickup truck and you might be able to use the auto juice for generator purposes. OK, maybe an extra battery would be necessary.

See, here in Texas we first try to solve a problem by using a pickup truck.

HDV is pretty fantastic for it's data rate, and DVCPRO HD should fit the needs on most short films.

I readily admit to being quite lost to the differences among these formats/protocols/acronyms. But one of these days (probably not the same one as mentioned before) I'll get around to straightening it out in my head...

[christoph]

No, no... a TRANSFER, not a SHOOT!

ok, my bad, i somehow read "shot a HD short"... silly as the idea sounds, there's a lot of discussion on the web about doing excactly that. ;)

anyway, i'm off for a few days, enjoy the summer everybody
++ christoph ++

[paulcotto]

My idea was for telecine one frame at a time so it should not be a problem. I would not use it for real time capture but you could if you needed to. A firewire 800 card or a SATA in a laptop connected to a portable FW800 or SATA raid zero (GRaid) should be fast enough. I have no experience yet with HD other then my home made HD Telecine at 1280X1024, but I have no problem capturing uncompressed frames to my raid zero.

Regards,

Paul Cotto