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View Full Version : HV20 + CineForm Recorder + Letus35 < 4000$



ArthurG
03-17-2008, 01:01 PM
Hello,
the Canon HV20 chip is 1080p, and with CineForm Recorder we will be able to record it to 4:2:2 10 bits via HDMI on CF Cards.
If Scarlet is a 2k, 4:2:2, 35mm sized chip, it wouldn't be over 4000$, isn't it ?

Steve White
03-17-2008, 02:34 PM
- Even though the HV20 outputs 4:2:2 via HDMI, most of the reports I've read (from Cineform) indicate that 2 of the 10 bits are not used... So the best you could get is 4:2:2 8-bit.

- HV20 debayering is done in-camera, limiting the algorithm.

- The HV20 lacks several manual controls. While the camera can be almost hacked to get all the correct results, it's hardly foolproof. Connectors, knobs and widgets will add to the cost.

All things considered though, with that $4k you're talking about, you've paid for a tape deck and CF card reader, two codec chips, two power supplies, etc. So if you cut out all the redundancy, you'd probably save quite a bit. The point to take out of this is that for Scarlet to be truly revolutionary in the pocket camcorder market, they have a lot of work to do.

Bob Gruen
03-18-2008, 05:13 AM
Although it's image is stunning, it has one or two major flaws that make it unusable in the 24P professional world. The biggest of which is the scrolling shutter issue:

In a nutshell, the image is processed one line at a time, and it is not processed fast enough. if you are doing a pan, or if something is moving around rapidly in your frame, the image will bend and look like Jell-O.

Speed of processing is part of what makes a camera expensive. An HV20 / 35mm rig might be OK for weddings, docs, or possibly TV, but if you put it in 24P mode you will run into its limits quickly.

Bob

Joe Carney
03-18-2008, 05:41 AM
Although it's image is stunning, it has one or two major flaws that make it unusable in the 24P professional world. The biggest of which is the scrolling shutter issue:

In a nutshell, the image is processed one line at a time, and it is not processed fast enough. if you are doing a pan, or if something is moving around rapidly in your frame, the image will bend and look like Jell-O.

Speed of processing is part of what makes a camera expensive. An HV20 / 35mm rig might be OK for weddings, docs, or possibly TV, but if you put it in 24P mode you will run into its limits quickly.

Bob

thats why I didn't buy one. Some people can live with it, others like myself, can't.

Álex Montoya
03-18-2008, 06:57 AM
An HV20 / 35mm rig might be OK for weddings, docs

Not really. A problem of this kind of rig is that the camera needs a lot of light.

ArthurG
03-18-2008, 07:14 AM
Ok, I heard your comments. Scarlet will be better than this config. And if it cost like 4K$ it would be crazy to buy an HV20.
Anyway we can see that a pocket cam in 4:2:2 10bits is possible, with 35 sized sensor and interchangeable lenses too.

vsv
03-18-2008, 01:28 PM
Any semi/pro camera today without Cineform(RAW) codec is obsolete, imo.
Cineform = easy crossplatform PC<->MAC workflow up to 4K.

lordtangent
03-19-2008, 04:11 PM
Any semi/pro camera today without Cineform(RAW) codec is obsolete, imo.

Agreed. I really can't understand why none of the established players (canon, panny, etc) haven't gotten on board with the idea yet.

Since this is an HV20-ish thread it's a good place to put this observation as well: An HV20-like cam with decent manual controls and a Cineform RAW or Redcode-like workflow would change the market completely. If the camera companies started shipping cameras that were only limited by thier actual technological limitations rather than though feature crippling... I mean, that would really be something! And I don't think it would hurt thier market for higher-end cameras at all. It would just move the capabilities of everything up a notch. The high-end cameras would still be better than the lower end cams simply based on thier parts (cleaner senors, higher res, 3-chips vs one, etc.) Companies like Canon and Panny could focus on making some universal standards for the RAW movies (like the video version of DNG, only with better compression, preferably variable...so the user can choose how much is right for them)

If anything, that's the main reason I'm excited about the Red One. Red is demonstrating this new business model for digital cameras and if it is successful and the market selects for it, the new model has a chance to set the pace for the rest of the industry.

Lawrence Bansbach
03-19-2008, 04:26 PM
Since this is an HV20-ish thread it's a good place to put this observation as well: An HV20-like cam with decent manual controls and a Cineform RAW or Redcode-like workflow would change the market completely.Maybe if it had 10-bit HDMI 1.3 and eliminated the rolling shutter.

Daniel Villiers
03-20-2008, 05:58 AM
Although it's image is stunning, it has one or two major flaws that make it unusable in the 24P professional world. The biggest of which is the scrolling shutter issue:

In a nutshell, the image is processed one line at a time, and it is not processed fast enough. if you are doing a pan, or if something is moving around rapidly in your frame, the image will bend and look like Jell-O.

Speed of processing is part of what makes a camera expensive. An HV20 / 35mm rig might be OK for weddings, docs, or possibly TV, but if you put it in 24P mode you will run into its limits quickly.

Bob

It is a bit strange what you read on the internet and spelled in such authority that it feels like letter of law. Unfortunately the redone and most probably the scarlet also suffer from what you described as the major flaw (rolling shutter - not scrolling shutter). It affects CMOS sensors and also film cameras, there are some work around and I guest everything is made of compromise.

I am sorry if my first post here, might seem quite hard but your assumption of the hv20 major flaw is so out of order (google rolling shutter and redone) that I felt that I had to respond for the sake of objectivity.

John Godden
03-20-2008, 07:18 AM
Ok, I heard your comments. Scarlet will be better than this config. And if it cost like 4K$ it would be crazy to buy an HV20.
Anyway we can see that a pocket cam in 4:2:2 10bits is possible, with 35 sized sensor and interchangeable lenses too.

I purchased an HV20 when it first came out. I was very disappointed with the IQ when doing even modest panning. Sold it post-haste.

YMMV
JohnG

Erik Bien
03-20-2008, 08:49 AM
Sure it's no RED One, but I've been pretty happy with the HV20 + 35mm adapter shooting to plain old HDV:

http://www.vimeo.com/800047

Being tethered to a Blackmagic Intensity-equipped PC for live capture is too restricting, but the little CineForm CF recorder is definitely on my "short list" of toys to check out at NAB ...

jjeppson
03-20-2008, 11:44 PM
There are a lot of posts and speculation about the upcoming Scarlet camera. I too am very excited and I have my own opinions and speculations but a lot of what I am reading here is rediculous--or, to be fair, a little far fetched.

Scarlet will most likely NOT have a 35mm sensor--not if it is anywhere NEAR "pocketsized". I think people are forgetting what a feat it is to have a full frame sensor in a camera as SMALL as Red One. Do some research and look at digital still cameras, they share more in common with the RED cams and the big reason those are so small is that the sensor is equally tiny. Go and find a full-frame still camera and see for yourself how not-pocket sized it is, and while you're at it think about WHY all digital still cameras aren't full framed. Because developing/producing a full-frame sensor is expensive at any pixel count.

Now it is common knowledge that a small sensor equals noise and bad DOF, so o it obviously ain't gunna be tiny, but check out how large Sigma's "pocket-sized" DP1 with an APS-C sized sensor and fixed, non-zoom lens. I believe/hope that the sensor for the Scarlet (which will not be full sized and either 2K or full 1080P) is large but will not be a full 35mm frame and probably not even a full APS (24mm) frame. Even at 16mm with an non-interchangeable lens it would be an engineering feat to create a camera that could be considered pocket sized.

Now to create even more controversy, I think that Scarlet may actually record to tape as well as CF. Unless my math is way off--which it could be, I am not very good at math--a 1080P RedRAW stream could be written to a DV tape, certainly a DVCPRO tape. Now I would prefer a flash solution, and I think there will be one, but tape is reliable (relatively) and cheap and would appeal to some of the key markets of the Scarlet. For example, documentary filmmakers, at least the few that I know, would jump at the chance of picking up a small, professional grade camera that would record in at least 30-40minute chunks, sans interruption, to a medium that didn't require being shuffled off to a computer and could be collected in a bad as they wander around the wilderness. Flash won't work because its too small and expensive and hard drives are too finicky and unreliable. I believe both those should, and will, be expansion options. Or perhaps I am wrong and tape is the expansion option, that certainly would bring down the cost of the camera.

Alright, flame away!

vsv
03-21-2008, 03:45 AM
http://www.engadget.com/2008/01/06/samsung-cranks-out-1080p-flash-camcorders/

1080p60 with 1/1,8" sensor, H264 compression ~$1K

Lawrence Bansbach
03-21-2008, 07:17 AM
http://www.engadget.com/2008/01/06/samsung-cranks-out-1080p-flash-camcorders/

1080p60 with 1/1,8" sensor, H264 compression ~$1KTwo cameras based on Sony's IMX017CQE CMOS sensor with these specs have already been announced. Besides, no 24p, no sale.

Tom Lowe
03-21-2008, 10:28 AM
http://www.engadget.com/2008/01/06/samsung-cranks-out-1080p-flash-camcorders/

1080p60 with 1/1,8" sensor, H264 compression ~$1K

Good god. The specs on that little thing are amazing. This might be nice for landscape cinematography, since DOF is not an issue with that type of shot. Or a strap a 35mm adapater on it and shoot a feature.

I wonder why it would record to H.264, though, since that's not really a codec used for editing, but rather for distribution.

Steve Sherrick
03-21-2008, 11:21 AM
300fps, hahahaha

zecahue
03-21-2008, 11:29 AM
http://www.engadget.com/2008/01/06/samsung-cranks-out-1080p-flash-camcorders/

1080p60 with 1/1,8" sensor, H264 compression ~$1K

c'mom guys :) 1/8" not 1/1.8"

vsv
03-21-2008, 03:59 PM
c'mom guys :) 1/8" not 1/1.8"

mistake of writer...
If you check photos here:
http://www.engadget.com/photos/hands-on-with-samsungs-sc-hmx20c-1080p-camcorder/559822/

http://www.blogsmithmedia.com/www.engadget.com/media/2008/01/samsung0001.jpg


you'll see 6.3 - 63mm focal length. At 1/8 inch that will be another digits :)

combatentropy
03-21-2008, 04:55 PM
people are forgetting what a feat it is to have a full frame sensor in a camera as SMALL as Red One. . . . the sensor for the Scarlet is large but will not be a full 35mm frame and probably not even a full APS (24mm) frame

Red One sensor = APS-C

APS-C: 24.4 × 13.7 mm
Red One: 25.1 × 16.7
Super35: 24.89 × 18.66

"Full-frame" 35mm: 36 × 24

Lawrence Bansbach
03-21-2008, 06:45 PM
c'mom guys :) 1/8" not 1/1.8"Nope, it's 1/1.8 inch. The imaging chip is the Sony IMX017CQE (http://www.sony.net/Products/SC-HP/cx_news/vol47/pdf/imx017cqe.pdf). Because it's about a half inch, DOF will be a little shallower than with a third-inch chip. But still no 24p, and at frame rates higher than 15 fps, the output data rate goes down from 12 to 10 bits. Though 10 bits (as in 10-bit 4:2:2) wouldn't be bad, the full 12 bits would be cool. Maybe Jim could get Sony to make a custom version that does framing rates up to 60 fps (including, of course, 24p) and a 12-bit data rate at 24p and 2K or even 1080p (i.e., 1,920 x 1,080, not 1,440 x 1,080), rather than 15 fps at 2,880 x 2,160. And, by the way, that 300-fps rate has a resolution of 2,880 x 432.

mdo
03-21-2008, 08:23 PM
Nope, it's 1/1.8 inch. The imaging chip is the Sony IMX017CQE (http://www.sony.net/Products/SC-HP/cx_news/vol47/pdf/imx017cqe.pdf). Because it's about a half inch, DOF will be a little shallower than with a third-inch chip. But still no 24p, and at frame rates higher than 15 fps, the output data rate goes down from 12 to 10 bits. Though 10 bits (as in 10-bit 4:2:2) wouldn't be bad, the full 12 bits would be cool. Maybe Jim could get Sony to make a custom version that does framing rates up to 60 fps (including, of course, 24p) and a 12-bit data rate at 24p and 2K or even 1080p (i.e., 1,920 x 1,080, not 1,440 x 1,080), rather than 15 fps at 2,880 x 2,160. And, by the way, that 300-fps rate has a resolution of 2,880 x 432.

The PDF says the image size is 9.10 mm diagonal. At 16/9 this yields a sensor that is 7.9mm x 4.5mm, which covers the area of about 1/18 of an inch. The PDF says it's: Type 1/1.8, but they don't say that's the size.

Mike Bozulich
03-21-2008, 09:06 PM
http://upload.wikimedia.org/wikipedia/commons/e/ec/SensorSizes.png

According to this handy chart (courtesy of wikipedipedia) a 1/1.8 sensor would be 7.18mm x 5.32mm (if it were 4/3 aspect). The diagonal of this would be 8.936mm... which is dang close to 9.1mm stated in the sensor documentation. It sounds like mdo's calculation of 7.9mm x 4.5mm is correct as it results in a diagonal of 9.091mm. 9.1mm is just shy of 3/8"

Whew! In the end, that's a pretty darn big sensor for such a small camera.

zecahue
03-22-2008, 04:13 AM
mistake of writer...
If you check photos here:
http://www.engadget.com/photos/hands-on-with-samsungs-sc-hmx20c-1080p-camcorder/559822/


you'll see 6.3 - 63mm focal length. At 1/8 inch that will be another digits :)

Yes u'r right, sorry. Most media sites are covering as 1/8" and it was hard to believe such PS cam with so big sensor, special samsung who produce tiny CMOS sensors. However, this is not the debut of this sensor, the Casio Exilim Pro EX-F1 use the same sensor. There are many 1200fps/600fps/300fps samples on the net, but I haven't seem a full HD sample. Seems like a hybrid sensor, not special designed for video nor for photography, so both quality will not be very high. Anyway it has a very impressive frame rate.

I doubt the quality of this sensor for video, Sony use they best sensors in they own cameras and camcorders.

zerrax
03-22-2008, 08:41 AM
Yes u'r right, sorry. Most media sites are covering as 1/8" and it was hard to believe such PS cam with so big sensor, special samsung who produce tiny CMOS sensors. However, this is not the debut of this sensor, the Casio Exilim Pro EX-F1 use the same sensor. There are many 1200fps/600fps/300fps samples on the net, but I haven't seem a full HD sample. Seems like a hybrid sensor, not special designed for video nor for photography, so both quality will not be very high. Anyway it has a very impressive frame rate.

I doubt the quality of this sensor for video, Sony use they best sensors in they own cameras and camcorders.


The Casio Exilim Pro EX-F1 can only record 60 fps at 1920x1080
the other faster frame rates are in combination with smaller aspect ratio's
512 × 384 (300 fps), 432 × 192 (600 fps), 336 × 96 (1200 fps)

zecahue
03-22-2008, 09:50 AM
The Casio Exilim Pro EX-F1 can only record 60 fps at 1920x1080
the other faster frame rates are in combination with smaller aspect ratio's
512 × 384 (300 fps), 432 × 192 (600 fps), 336 × 96 (1200 fps)

Different machines, different specification. But no other known sensor in the market with these capabilities. So, its high possible they use the same sensor.

vsv
03-24-2008, 11:49 AM
Looks like samsung and casio used same cmos 1/1.8" manufactured bu sony.
http://www.letsgodigital.org/en/camera/specification/1737/show.html
http://www.letsgodigital.org/en/18689/casio-exilim-pro-ex-f1-test-photos/

maarek
04-04-2008, 04:19 AM
I am sorry if my first post here, might seem quite hard but your assumption of the hv20 major flaw is so out of order (google rolling shutter and redone) that I felt that I had to respond for the sake of objectivity.

It is a major flaw and for me it makes the camera come down a notch.

oldphart
04-04-2008, 06:56 AM
...
Scarlet will most likely NOT have a 35mm sensor--not if it is anywhere NEAR "pocketsized".
...

I once had an Olympus Pen F still camera. With a normal or wide angle, it was easily pocket sized. I think we are pretty close to the point in time where the electronics for a digital movie camera will be able to fit in the space occupied by the film and mechanical parts of a 35mm still camera.

The embedded computer to deal with 4k will be bulky and energy hungry for some time yet, but 2k should be approaching the realm of possibility.

Bing Bailey
04-04-2008, 07:06 AM
There are a lot of posts and speculation about the upcoming Scarlet camera. I too am very excited and I have my own opinions and speculations but a lot of what I am reading here is rediculous--or, to be fair, a little far fetched.

Scarlet will most likely NOT have a 35mm sensor--not if it is anywhere NEAR "pocketsized". I think people are forgetting what a feat it is to have a full frame sensor in a camera as SMALL as Red One. Do some research and look at digital still cameras, they share more in common with the RED cams and the big reason those are so small is that the sensor is equally tiny. Go and find a full-frame still camera and see for yourself how not-pocket sized it is, and while you're at it think about WHY all digital still cameras aren't full framed. Because developing/producing a full-frame sensor is expensive at any pixel count.

Now it is common knowledge that a small sensor equals noise and bad DOF, so o it obviously ain't gunna be tiny, but check out how large Sigma's "pocket-sized" DP1 with an APS-C sized sensor and fixed, non-zoom lens. I believe/hope that the sensor for the Scarlet (which will not be full sized and either 2K or full 1080P) is large but will not be a full 35mm frame and probably not even a full APS (24mm) frame. Even at 16mm with an non-interchangeable lens it would be an engineering feat to create a camera that could be considered pocket sized.

Now to create even more controversy, I think that Scarlet may actually record to tape as well as CF. Unless my math is way off--which it could be, I am not very good at math--a 1080P RedRAW stream could be written to a DV tape, certainly a DVCPRO tape. Now I would prefer a flash solution, and I think there will be one, but tape is reliable (relatively) and cheap and would appeal to some of the key markets of the Scarlet. For example, documentary filmmakers, at least the few that I know, would jump at the chance of picking up a small, professional grade camera that would record in at least 30-40minute chunks, sans interruption, to a medium that didn't require being shuffled off to a computer and could be collected in a bad as they wander around the wilderness. Flash won't work because its too small and expensive and hard drives are too finicky and unreliable. I believe both those should, and will, be expansion options. Or perhaps I am wrong and tape is the expansion option, that certainly would bring down the cost of the camera.

Alright, flame away!

a full frame 35mm film frame is actually a lot smaller than 35mm still frames. its not as big as you think. you're not comparing like with like