View Full Version : Is Gemini the only deck able to record 4:2:2 60P?
04-20-2011, 10:04 PM
Just researching outboard decks that can record 1080 60P at 4:2:2 from the F3. Is Gemini the only one that will do this (cinedeck Extreme is too exxy). I'm not convinced of the benefits of 4:4:4 for the sort of commercial and broadcast work we do. Most of the decks like Ninji, Ki Pro, etc seem to record at a maxxed rate of 1080 60i.
04-21-2011, 04:25 AM
1080p 60p at 422 requires dual link/3g sdi and very fast media.
so candidates at the moment are
gemini, possibly cinedeck, (maybe cinemartin if and when it releases) sony SR recorder, codex, s. two obi one.
the lost two are really high end recorders that cost several times more than the camera.
SR recorder has a LOT of features, but it's still pretty big, and the price of the media costs a lot too. plus you have to get Sony's offload solution, which there is no pricing yet.
gemini and cinedeck are the only practical choices for people on a semi budget. cinedeck will allow the most variety in codecs, but gemini is a fraction of the weight, 1/3rd the size, and also uses up a fraction of the power. So it's probably gonna come up on tope.
04-21-2011, 07:51 AM
Now, correct me here - but isn't 1080 60p just two completely separate 1080 29.97p streams?
Hassle aside, would it be possible to record the independent streams to say... a Blackmagic Hyperdeck shuttle or a Atmos Samuari, then trim the resulting files, and use a custom batch processing software to interweave the frames from each device into a single stream?
A lot of hassle, and definitely a hack, but is it feasible?
If you could do it with the Hyperdeck, that means it's possible with what's effectively a $700 recorder.
04-21-2011, 10:26 AM
would be possible if the cameras worked like that. but i believe dual link or 3g produces the 60p as a single stream of video. the inherent bandwidth limitation of single link, is 3g. so it's 1.5g per link. dual link was made before they had the tech to put out the stream with enough power in a single stream, and do all the processing. so for all intensive purposes, even though you are running 2 cables, it's only running 1 stream of video, at 1080p, 422, 60p. and even then, the processing and bandwidth isn't enough to give it to you at 444.
feature I think is either gonna be an alternative to SDI, or multiple 3g sdi connection. think dual link 3g. maybe even quad for 4k. or if hdmi 1.4a takes off as a professional acquisition method.
05-15-2011, 07:46 AM
Hi, Cinemartin SFV is able to record 4:2:2 at 1080p60.
Video hands-on is expected end May/June
05-15-2011, 08:13 AM
Computer tethered options include:
Blackmagic Design Decklink 4k $595
Blackmagic Design Decklink Extreme 3D $995
Blackmagic Design Multibridge Eclipse $2,275 (approximate)
Blackmagic Design Multibridge Pro $1,600 (approximate)
Blackmagic Design Ultra Studio 3D $995 Thunderbolt port required. Laptop friendly.
Aja Kona LHi $1,500 (presumes 3G is possible, does not offer dual link input)
Aja Kona 3G $2,000 (does offer both 3G and Dual Link input)
The cheapest desktop option here is a mere $595.
The cheapest laptop option here is $995, but currently requires the newest generation of Macbook Pro, as it relies on Thunderbolt, and drivers/software is only currently offered on the Mac platform.
Regardless, these options are cheaper than both the Cinemartin and Gemini, and some users may already have this hardware at their disposal.
Not as field flexible as a true portable recorder though.
*Also, many of the above options can handle 4:4:4 material.