AJA IO HD

[Gary Adcock]

[xtrmn8ngangl] “would he be able to benefit from the aja io hd if he works in uncompressed 10 bit 422…we both do not know much abou this prores 422 codec… “

the IoHD does not capture uncompressed HD. 10bit PAL is fine, but only the only HD capture is ProRes.

[xtrmn8ngangl] “with the aja io hd can he hook up a mac cinema display and a reference monitor? “

there are not any DVI ports on the IoHD for a cinema display – video outputs only – a DVI connection is only available from the host computer.

“is there a blackmagic product that is comprable to the aja io hd?”

NO

and he should not be thinking about 4:4:4 for location work.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

[Aaron Martinez]

so is it a bad thing that the IO HD does not capture uncompressed HD. is there something that does…or is uncompressed hd unnecessary due to the prores codex…i think he will be wanting to work in pal sd. i mean until now all the work we have done together was shot on film and telecinied to beta for TV. we did however do one job shot in HDV, but i could imagine more such jobs coming along…i guess what im asking would be…getting the IO HD would benefit us by allowing us to capture our SD at 10 bit, and the HD in prores. i guess we could even do the telecines to HD and capture in prores and then just playout in beta..

thanks for the help,
aaron

[Michael Sacci]

[xtrmn8ngangl] “so is it a bad thing that the IO HD does not capture uncompressed HD”

Only if you need to do Uncompressed HD. If you do, this is not for you. But ProRes is meant to bridge the gap between Uncompressed and DVCProHD. It is full raster and less compressed plus it can be 10-bit. Any compression is a compromise but this is a far less one. The mean benefit is this is an external box and it can be used with a laptop. So you get portability and adds ProRes capture to a lot more systems (G5s).

What keeps a small shop like mine from even considering uncompressed HD is the storage that would be needed to do multicam edits (up to 8 streams) right now I have been using DVCProHD but next concert will be done with ProRes.

[Bob Zelin]

Aaron –
if you need to digitize uncompressed HD (or DVCProHD), you can get the AJA Kona LHe or the AJA Kona 3. These work beautifully for uncompressed HD. If you add an AJA I/O Box, you can upconvert any standard def signal to HD as well (the Kona 3 and Kona LHe will downconvert HD to SD by themselves).

These products have been available for over a year, and work flawlessly. Don’t cry because the I/O HD can’t to uncompressed HD. AJA has other products that do this RIGHT NOW. Anyone that is working with uncompressed HD has an expensive HD-VTR and can easily afford the standard Kona LHe or Kona 3.

Bob Zelin

[Aaron Martinez]

ok to tell the truth i do no think we will need to playout in unkompressed hd, but my question is how big of a difference is the quality of uncompressed hd and the prores? we do work in musik videos but always down convert to uncompressed 10 SD…thanks a lot…

aaron

[Bob Zelin]

aaron –
it is my opinion that you are not qualified to specify this equipment. This is an important decision, and an expensive one. Why would you take our word for it ?

You must see what ProRes422 looks like for yourself. You must go to a video facility, or a dealer, and see what Apple Pro Res looks like. The IBC show just happened in Amsterdam – why didn’t you go to the show ?

ProRes422 looks fantastic. Some people will say it is not as good as HD, but this is a matter of opinion. Many people in Florida (USA) use Panasonic DVCProHD as their compression codec, and this is more compressed than ProRes422.

If you are familiar with AVID DNxHD (used on the AVID Adreanline product), the “look” of ProRes is the same.

Bob Zelin

[Arnie Schlissel]

[xtrmn8ngangl] “hallo, a friend of mine has ordered an aja IO HD in germany and was a bit scared to purchase it…he believes it will be coming in next week, but asked me to try to find out a couple things for him…”

Well, maybe it’s just me, but I usually try to find out this type of information before I actually buy an expensive piece of equipment.

Specs on the Io HD have been available for quite some time, via Aja’s printed ads & their website. They don’t advertise it for uncompressed HD, it doesn’t do uncompressed HD.

Is the ProRes codec good enough for your friend? I don’t know. Only you or your friend can figure that out by looking at actual footage captured in the codec and used under conditions that you will be using.

Good luck!

Arnie
Now in post: Peristroika, a film by Slava Tsukerman
https://www.arniepix.com/blog

[Galen Summer]

Hey all –

We are looking to use an IO HD for monitoring only on a Panasonic HD LCD. Will it be able to output uncompressed 10-bit 4:2:2, even though it can’t capture that? I want to re-emphasize that we will not be capturing or outputting, but simply monitoring on an SD CRT and an HD LCD. From reading the literature it seems that it can, but I want to be sure BEFORE we buy.

Thanks,

galen

[Jeremy Garchow]

Yes. Uncompressed SD will work. Uncompressed HD will not.

Jeremy

[Galen Summer]

Ahhhhh. So in order to playback and monitor HD, we will have to work in ProRes. That is the highest quality HD codec that is suupported (lower levels of HD such as DVCPro are not of use to us)?

Thx,

galen