View Full Version : F3 4:4:4 recording solution? Forget the gemini!
Christoph Tilley November 26th, 2011, 09:11 AM Hi there,
since I got my S-Log upgrade for my F3 I have been searching/waiting for the perfect 4:4:4 recorder and I was quite sure that I'll buy a Gemini444 when it is available. Now I have built my own setup at half the price of the Gemini with even more features. And it works great!
Read about my workflow here:
Sony F3 4:4:4 RGB uncompressed workflow | _mxr blog (http://blog.mxr.at/sony-f3-444-rgb-uncompressed-workflow/)
Compared to the Gemini444 workflow there is one big disadvantage: it’s bulky, big, heavy, and you need external power supply – no batteries. But remember: the Gemini 444 records onto SSDs with a max capacity of 512GB. The Gemini can span over two SSDs which gives you a max capacity of 1024GB and a recording duration of approx. two hours. When you shoot more than two hours of footage on set you have to buy additional SSDs or download the footage into a DIT-station which is practically the same thing as my workflow – a computer with a RAID.
Chris Norman November 26th, 2011, 11:20 AM Where are you seeing the price of $8000 for Gemini excluding SSDs that you mentioned in your blog?
B&H sells Gemini for $5995 and 256GB SSDs for $749 each & will ship to most countries.
Christoph Tilley November 26th, 2011, 11:48 AM Where are you seeing the price of $8000 for Gemini excluding SSDs that you mentioned in your blog?
I took prices from here: Results for search: gemini (http://www.creativevideo.co.uk/index.php?t=category/gemini)
Drazen Stader November 26th, 2011, 06:07 PM Hi.
this a very interesting solution...what do you think...could the same workflow logistics be applied to the aja Io XT device? it has also dual hd-sdi inputs...could even serve as a 1080p 60p recorder...what do you think?
Io XT - AJA Video Systems (http://www.aja.com/products/io/io-xt.php)
best regards
Duke Marsh November 26th, 2011, 07:27 PM If you use the Ultrastudio 3D or IO XT you're going to be tethered for both power and video signal. Not too good for field work. I think you could just go with a 4.4.4 card from Black Magic and do it cheaper.
Peter G. Johnson November 27th, 2011, 02:01 AM The Gemini is approximately $8000 once you've bought all the accessories. So if you live in the US, you're fortunate. However if you live in the UK or Australia, you can add one or two thousand in taxes.
Gemini = $5995
2x 256GB SSD = $1498
D-Tap battery cable = $93
Anton Bauer lithium battery = $455
TOTAL: $8041
With 2x 256 GB SSDs:
1080p24 (4:2:2): 66 minutes
1080p24 (4:4:4): 44 minutes
1080p25 (4:4:4): 43 minutes
1080p30 (4:2:2): 54 minutes
1080p50 (4:2:2): 32 minutes
1080p60 (4:2:2): 26 minutes
I went for the Sound Devices Pix 240 at around half that amount (with all the accessories) because I figured the Gemini created huge files with the need for something like a Mac Pro to do anything with them. Gemini owners must exclusively have 4:4:4 in mind for that price. Even so, 40 something minutes worth of raw data at any given time for $1500 worth of SSD is not really justifiable, I think. For that sort of money I'd consider Sony's SR-R1 external recorders. ($12,500 + $5700 for a 1TB card.)
Brian Drysdale November 27th, 2011, 02:36 AM Depending on what you're shooting, it's possible you may want more than 2 cards. With two cards you'd need to be regularly downloading, which you don't always get the opportunity for when out filming some types of material.
Dan Keaton November 27th, 2011, 06:17 AM Dear Peter,
I fully respect your decision.
The Gemini 4:4:4 comes with the D-Tap/P-Tap cable.
A Sony F3 + the Gemini 4:4:4 can be powered for around 2 hours with a Swit EX1/EX3/F3 battery, the Swit 8u62 battery. Of course one needs a charger and any Sony EX1/EX3 will work or one can use the Dolgin or Swit chargers.
Anton Bauer batteries may be used, but are not required.
The Gemini 4:4:4, in order to create files that will be accepted by the leading software, upreses 1080p23.98/25 4:2:2 footage to 4:4:4, as 4:2:2 DPX footage is not widely accepted.
This is an intelligent upres using the weighted average of pixels.
Thus, 1080p23.98 with 66 minutes is not an available option, but 1080p23.98 4:4:4 at 44 minutes is.
The Gemini 4:4:4 is designed for when one wants to record 100% of the quality of the image from the camera.
There are no compromises, no image loss, no artifacts.
And when editing with full uncompressed 4:4:4 images, there is no generational loss, as the images do not get uncompressed and recompressed with every generation.
I thought the import tax for Australia was 10%, but I could be wrong.
Alister Chapman November 27th, 2011, 06:24 AM Certainly the SR-R1 is an option for 444 with the F3, but the SR-R1 is huge and there is no realistic way you would want to use it handheld. The gemini on the other hand is very compact, sit's nicely on the top of the handle and has a screen bright enough to be seen in daylight. As I see it right now the Gemini is the only solution for truly portable or handheld 444 production with the F3.
The big question of course is do you really want 444? If 422 works for you (and it will for the many I believe) then there are lots of options. I've been playing with an Atamos Samurai and I have so far been very impressed.
I will be posting some examples of S-Log shot with a Gemini at 444, a Samurai at 422 and the internal 8 bit EX coded later in the week once I've had a chance to sort all the files and clips out.
Drazen Stader November 27th, 2011, 10:37 AM Alister hi,
obviously the gemini is a sweet piece of hardware to have for those who can justify the need for it...I am really looking forward for the comparison of the video files when compared to samurai 422...we have just wrapped an intense tv campaign all shot on the f3 with the aja kipro...I will be also posting some results next week when the ad goes on the air...finding a cheaper way to record dual hdsdi out of sony f3 even in studio environement seems very important to us...cause only few can afford to spend as much for the s-log and external recorder which at the end rises up to the price of the camera itself...
Ned Soltz November 27th, 2011, 11:39 AM A slightly different opinion on the SR-R1 from Alister. Having used it hand-held for several days, it really helps counterbalance the camera and with a good shoulder rig, handles and perhaps the EngRig from DVTec, it is quite manageable hand-held. Or, I should say it was easy on the shoulder. Carrying the rig in my left hand for a bit by F3 handle exacerbated my tendonitis! I hurt!
The Gemini is amazingly compact and has a superb screen. The DPX workflow does add a step or two depending upon NLE but it remains a reasonably priced system even with the proprietary SSD's. It is less than the SR-R1 or Cinedeck (now, that's a very large and bulky device).
Ned Soltz
Dan Keaton November 27th, 2011, 12:56 PM Dear Friends,
It is reasonable to describe our SSD's as proprietary, since only our SSD's will work in the Gemini 4:4:4.
However they are non-proprietary SSD's, it is just that only ours will work in the Gemini 4:4:4, others do not have the necessary performance.
We tested almost all, if not all of the of the 1.8" SSD's that were available at the time of our testing.
Many had the spec's, on paper, which would indicate that they would work.
But, we only found one that would work.
Then, to complicate matters the manufacturer decided not to sell, via retail channels, this particular high-end 1.8" model.
Background:
Based on our extensive experience, using CompactFlash in the nanoFlash, we found that many would use the CompactFlash cards on our "Qualified List", and others would not.
And, we found that many CompactFlash card manufacturers would change the formula quite often.
Two CompactFlash manufacturers work very closely with us and do not change their card formula, without notifying us first and allowing us to requalify the cards. These are Delkin and Axtremex.
Then comes the issue of testing and certifying each card.
The Gemini 4:4:4 is a high-end professional product and we do not want a shoot ruined by a SSD that will not work. This would ruin the reputation of the Gemini 4:4:4.
Thus, we buy the SSD's in very large quantity, then test them, then test them at very high temperatures to ensure that they will work in the field. We do find some that do not work well at elevated temperatures, even though they work at normal temperatures, so they get rejected.
Thus, each and every SSD has been thoroughly tested and screened.
Steve Kimmel November 27th, 2011, 02:28 PM A slightly different opinion on the SR-R1 from Alister. Having used it hand-held for several days, it really helps counterbalance the camera and with a good shoulder rig, handles and perhaps the EngRig from DVTec, it is quite manageable hand-held. Or, I should say it was easy on the shoulder. Carrying the rig in my left hand for a bit by F3 handle exacerbated my tendonitis! I hurt!
The Gemini is amazingly compact and has a superb screen. The DPX workflow does add a step or two depending upon NLE but it remains a reasonably priced system even with the proprietary SSD's. It is less than the SR-R1 or Cinedeck (now, that's a very large and bulky device).
Ned Soltz
Ned, how does the Cinedeck compare with the SR-R1 in terms of bulkiness. From pictures on the web, the Cinedeck looks much smaller.
Peter G. Johnson November 27th, 2011, 03:58 PM There appears to be a lot jostling for position regarding external recorders. I think cost is eventually the determining factor.
I've been spending so much time experimenting that I haven't done anything useful for anyone but myself. However I've got a lot of simultaneous footage with SxS card recordings and Pix 240 10bit 220mbps. I'll prepare some close up stills to show the difference. I'd like some Gemini owners to do the same; pixel for pixel, as it were.
Steve Kimmel November 27th, 2011, 05:28 PM There appears to be a lot jostling for position regarding external recorders. I think cost is eventually the determining factor.
I've been spending so much time experimenting that I haven't done anything useful for anyone but myself. However I've got a lot of simultaneous footage with SxS card recordings and Pix 240 10bit 220mbps. I'll prepare some close up stills to show the difference. I'd like some Gemini owners to do the same; pixel for pixel, as it were.
Can't wait to see the results! Gemini and even Cinedeck comparisons would be great as well.
Thanks.
Peter G. Johnson November 27th, 2011, 09:39 PM Attached are two images. They are still frames of video at 800% magnification and saved as PNG files. One is using the ProRes422 10bit 220mbps (Pix 240) and the other is an identical time from the SxS card 8bit 35mbps.
Nate Weaver November 27th, 2011, 10:37 PM Holy cow. I knew XDCAM was a little softer, but not like that.
Tom Bostick November 27th, 2011, 11:22 PM Attached are two images. They are still frames of video at 800% magnification and saved as PNG files. One is using the ProRes422 10bit 220mbps (Pix 240) and the other is an identical time from the SxS card 8bit 35mbps.
the difference in those is huge!
Peter G. Johnson November 28th, 2011, 12:32 AM By the way, those are not wrinkles. I was squinting as much as possible to create more detail for s-log.
Holy cow. I knew XDCAM was a little softer, but not like that.
Remember, that's 8x the original size. Most images look quite ordinary when you magnify them like that.
Nate Weaver November 28th, 2011, 03:14 AM Remember, that's 8x the original size. Most images look quite ordinary when you magnify them like that.
Oh, I caught that. You can't convince me it's still not a big deal. When you manipulate the image later in color or otherwise, those 'softer' areas fall apart before everything else.
I understand this might seem like splitting hairs, but after shooting Red for 2-3 years, I'm excited to see this cam close the gap.
Also, kudos for the 'angst' codec test. Tektronix might be interested!
Alister Chapman November 28th, 2011, 01:39 PM I've got Samurai, Gemini, Gemini transcoded to ProRes and Native 35Mb/s frame grabs on my site for download:
DPX, ProRes and EX 35Mb/s comparison tests – what a nightmare! | XDCAM-USER.COM (http://www.xdcam-user.com/2011/11/dpx-prores-and-ex-35mbs-comparison-tests-what-a-nightmare/)
Gemini is the clear IQ winner in this test. Interesting ProRes results, judge for yourselves.
Steve Kimmel November 28th, 2011, 09:34 PM Thanks Alister. I tried to download files (put in my email), but it didn't seem to work.
Alister Chapman November 28th, 2011, 10:25 PM The link should be working now. Any further problems let me know. Thanks for pointing it out.
Steve Kimmel November 28th, 2011, 11:07 PM The link should be working now. Any further problems let me know. Thanks for pointing it out.
Thanks, that worked! I see what you mean in your review on your blog.
Cees van Kempen November 29th, 2011, 08:35 AM Attached are two images. They are still frames of video at 800% magnification and saved as PNG files. One is using the ProRes422 10bit 220mbps (Pix 240) and the other is an identical time from the SxS card 8bit 35mbps.
Is the difference related to ProRess vs. XDCam or to 10bit 220mbps vs 8bit 35mbps? Or in other words, will capturing with nanoflash at XD Cam HD422 @ 220mbps be comparable with the proress example or with the SxS card example? I don't have a F3 (yet), but have a nano and consider the F3.
Dan Keaton November 29th, 2011, 09:43 AM Dear Cees,
I would like to comment on your question.
Background: My image quality information is based on many emails from Sony ICE Team members who have an F3 and a nanoFlash. ICE = Independent Certified Experts.
What I hear most often, is that the images are "just stunning".
Here is why I believe this combination creates great images.
1. The Sony F3 is an exceptionally low noise camera.
2. The nanoFlash with the Sony XDCam 422 codec, running at higher bit rates is an exceptionally low noise codec.
3. Under normal circumstances, a codec has to compress the image which includes the inherent camera noise.
The noise makes compressing the image much harder as the noise is just more detail to be compressed to the codec.
But, when the image to be compressed, and there is very little noise, then the codec is not hampered by having to compress all of the extra detail caused by the noise.
Thus, the Sony F3 + nanoFlash can produce outstanding images. All of the compression "Horsepower" can be devoted to the image, and very little if any has to be devoted to the noise.
Alister has mentioned that the ProRes codec adds some noise.
Others have expressed this same opinion, based on tests that they have run.
It is very reasonable to record the images from the F3, with a nanoFlash.
Cinegamma 1, for outdoors or bright highlights and
Cinegamma 4, for darker conditions may be used.
(Your choices may vary.)
For the very best image quality, and for full support for Sony S-Log, we recommend the Gemini 4:4:4.
Alister Chapman November 30th, 2011, 10:42 AM I shot some footage on the Gemini, internally on the F3 and and some SR-SQ using an SR-R1 today. S-Log and standard gamma. I'm on the road flying home tonight but as soon as I'm home I'll pull off some frame grabs. Really interested to see how the SR compares to the Gemini. I think I know which will look best, but how big will the difference be?
Duke Marsh December 1st, 2011, 09:43 PM It is very reasonable to record the images from the F3, with a nanoFlash.
Dan, I loved my Nano when I had it. Compared to the latest crop of recorders it draws negligible juice and minimal drive space. It's reliable, compact and light.
I know it can't, but I really wished it had been upgradable to 10 bit. If the Nano had 10bit I'd be on it in a minute. I know 10 bit isn't the be all and end all. As it is its still a good match for the F3. The Gemini was just a little be too much for my work. I'm in between your two products right now and not 100% happy with what I have. LOL
Dan Keaton December 1st, 2011, 11:57 PM Dear Duke,
I understand.
One point to consider, our Sony Codec is lower in noise than the other recorders.
This does help the nanoFlash compete very well against the others.
For true 10 bit, with zero noise, the Gemini 4:4:4 is the answer.
Alister Chapman December 2nd, 2011, 01:41 AM I've been comparing ProRes to a number of codecs and the noise ProRes generates. This noise acts can become the limiting factor when you try to grade it. As an example I recorded some ProRes HQ and Mpeg2 100Mb/s on a NanoFlash from the F3. I find I can grade both by similar amounts before getting unacceptable artefacts. DPX from the Gemini, SR-SQ or DNxHD are much better.
Luc De Wandel December 2nd, 2011, 03:50 AM Alister, entered my e-mail in your link as demanded, but no download...
Peter Corbett December 2nd, 2011, 05:02 AM Same here...it's broke.
Alister Chapman December 2nd, 2011, 09:08 AM if you click on the link again, after entering you email, you should get the download link.
Barry Nolan December 2nd, 2011, 05:29 PM Alister,
I've tried your link 5 or 6 times in the past 5 hrs. with no luck.
Barry
Peter Corbett December 2nd, 2011, 11:20 PM Ditto. Just tried it again and nothing happens.
Alister Chapman December 3rd, 2011, 04:02 AM I've changed the login method. Registered users should get the download link automatically.
Barry Nolan December 3rd, 2011, 10:31 AM Alister,
OK now. Thank you
Barry
Peter G. Johnson December 3rd, 2011, 08:56 PM I thought the import tax for Australia was 10%, but I could be wrong.
Import tax to Australia is 10% and then you add on Customs Duty. What a complete rort! I've been stung a number of times with this, which is why you have to be discerning when importing to Australia.
A$
Customs value EXAMPLE ($1200) (Cval) 1200.00
Customs duty (Duty) @ 5% of Cval 60.00 (Payable)
International transport and insurance or postage (T&I) 150.00
Value of the Taxable Importation (VoTI) (Cval+Duty+T&I) 1410.00
Goods and Services Tax (GST) @ 10% of the VoTI 141.00 (Payable)
Total payable Duty + GST 201.00
When buying over the internet (http://www.customs.gov.au/site/page5549.asp)
Alister Chapman December 4th, 2011, 04:11 AM There is a similar tax situation when importing into most countries.
Across Europe for example a product imported from outside Europe will be subject to VAT. In the UK VAT is 17.5% (As corrected by Mike below it's 20%). Then there is also import duty which will depend on the type of product, but between 8% and 15% is common.
The exporter of a product when selling to another country does not generally have to add any taxes to the product. But when selling in ones own country there will be sales taxes and/or VAT to be added, which is often why overseas goods often appear on the face of it to be cheaper.
Mike Marriage December 4th, 2011, 04:38 AM In the UK VAT is 17.5%.
20% since 4th January 2011!
Alister Chapman December 4th, 2011, 03:35 PM Doh! I do know that but my brain refuses to accept 20% VAT, especially on a weekend when I'm jet lagged :-)
Ron Aerts December 11th, 2011, 07:46 AM Is the difference related to ProRess vs. XDCam or to 10bit 220mbps vs 8bit 35mbps? Or in other words, will capturing with nanoflash at XD Cam HD422 @ 220mbps be comparable with the proress example or with the SxS card example? I don't have a F3 (yet), but have a nano and consider the F3.
Cees, you're welcome to use my F3/Zeiss CP2 for a test
Cees van Kempen December 17th, 2011, 03:02 PM Thanks Ron, I might come back to this at a later stage.
Cees
Doug Jensen December 17th, 2011, 10:59 PM Is the difference related to ProRess vs. XDCam or to 10bit 220mbps vs 8bit 35mbps? Or in other words, will capturing with nanoflash at XD Cam HD422 @ 220mbps be comparable with the proress example or with the SxS card example? I don't have a F3 (yet), but have a nano and consider the F3.
I have 50GB of test footage available if you want to seriously compare the differences between various codecs. PMW-F3 S-LOG & External Recorders Test Drive (http://www.vortexmedia.com/F3_TEST_DRIVE.html)
Alister Chapman December 18th, 2011, 10:23 AM We shot a Duran Duran concert with 12x PMW-F3's with NanoFlashes recording at 80Mb/s on Friday. We chose NanoFlashes as they are highly reliable and the amount of media generated by 12 cameras shooting for over 2 hours each is very manageable. Lot's to consider when choosing a recorder, not just image quality. As there are no plans for a heavy grade (I created a PP specifically for the shoot by experimenting at a previous DD gig) it was felt that 8 bit would be plenty. Shooting with ProRes HQ would have generated around 3.5TB of data compared to the 900GB that was shot with the Nano's. Not a job for a Gemini... that would have been 26TB from the 12 cameras! Don't forget that we are also creating a backup of everything so all the numbers given can be doubled when you include that, plus a further 300GB from the mini-cams and crowd cameras.
Nate Weaver December 18th, 2011, 12:06 PM Shooting with ProRes HQ would have generated around 3.5TB of data compared to the 900GB that was shot with the Nano's. Not a job for a Gemini... that would have been 26TB from the 12 cameras!
My Green Day job on 11 Reds created 2.8TB. It was painful to get it all backed up the first couple days, but after that it wasn't so bad.
In the end it comes down to how much money people are getting paid (an overage on that job was paying overtime for the loaders, as they were still dumping drives and making backups at 10am the morning after the show) and what the budget for gear is.
Alister Chapman December 18th, 2011, 12:33 PM I agree that much will depend on the project budget. For this shoot we didn't feel that we were compromising the image quality by using NanoFlashes and the savings on media, storage and DiT time could be used on lens hire where we could see a real benefit to the quality of the end production.
Plus theres a huge difference between managing and storing 3 or 4 TB compared to the 26TB that uncompressed would have meant.
Nate Weaver December 18th, 2011, 03:02 PM Plus theres a huge difference between managing and storing 3 or 4 TB compared to the 26TB that uncompressed would have meant.
I think you made a fantastic choice, especially if DP is more or less happy with the image before post tweaking. I'm never happy with out of camera images, but that's just me.
Nobody would consider uncompressed if they knew all the ramifications. It's not just 26TB of storage space. It's LTOs for backups, finding enough SSDs for the shoot, loaders and runners for the shoot. Cost gets exponentially large.
I was head loader on 2 separate 8-10 camera 35mm concert shoots back in the 90s. It takes a loader for every camera and a runner for every camera.
Ron Aerts December 20th, 2011, 01:35 AM Hi Allister,
would you be willing to share the duran concert PP?
Í want to experiment on tweaking the F3 and need a good start.
I assume the pp was made for the kind of lighting used at live concert.
Thanks, Ron
Alister Chapman December 20th, 2011, 03:24 AM I was paid by the production company to design that profile specifically for their production, so it's not one I can share as I would normally. What I can say is that a cinegamma was used to avoid the nasty clipping that occurs when you use a conventional gamma and knee. In addition black gamma.was used to lift the shadows to allow a slightly lower exposure level to be used to help deal with the extreme stage lighting. The image was also desaturated to reduce chroma clipping.
The concert lighting supervisor had a monitor feed and additional follow spots were used to improve the on stage lighting balance between the band members and the effects lights.
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