650D/T4i Raw Video

[mdfaisal]

Curious I can record 720p24 continuous with my SanDisk 45MB/s Card

What version ml have you installed?

[CFP]

RAW 95MB
RAW + L  91MB
All other 59 MB

So the Picture Quality setting does change the Shoot_Malloc size. Just like on the 600D and 60D. Good to know.
I wonder what you've done that midnite haven't done? He said that changing the picture quality wouldn't affect the buffer size.

So, how far can you push the resolution? If 1280 X 720 (16:9 | 37 Megabyte/s at 24 frames/s | 2.2 crop factor) works, does 1536 X 614 (2.5:1 | 38 Megabyte/s | 1.8 crop factor) work continously too? It would make the 650D almost as good as the 50D in 1X mode. But the 650D has audio and flipscreen. If the 70D won't be really awesome I might upgrade from 600D to 700D once the price droped a little bit more.

But thank you for confirming my suspicion Still somebody has to fill the gaps in the Comparison Table.

[spider]

What version ml have you installed?

Satriani build from 26.06

[spider]

does 1536 X 614 (2.5:1 | 38 Megabyte/s | 1.8 crop factor) work continously too?

No, maximum speed is 37.1 MB but 1600*600 at 24 frames works 1000 frames and more.

[CFP]

No, maximum speed is 37.1 MB but 1600*600 at 24 frames works 1000 frames and more.

Don't make me jealous. On the 600D I'm getting 57 frames at this resolution

But thank you for the info. You are using the SanDisk 45 Megabyte/s SD-Card, right? So ... How much is possible with a 95 Megabyte/s card?
Since the hardware limit of the camera is 50 Megabyte/s and not 37.1 Megabyte/s, there's still space for improvements on the firmware side. And the buffer could be a little bit bigger too, I guess.

The 650D/700D's only issue would be the focus artefacts.
But I think the cameras have a great potential for RAW video.

[mdfaisal]

RAW 95MB
RAW + L  91MB
All other 59 MB

How do you set this setting?  Canon menu or ml menu?

[mdfaisal]

Sorry connection error...
Double post

[spider]

How much is possible with a 95 Megabyte/s card?

I dont think we will never get any benefit from a 95 MB/s card.

Since the hardware limit of the camera is 50 Megabyte/s and not 37.1 Megabyte/s, there's still space for improvements on the firmware side.

I think the HW limit is 37.1 to 37.3MB/s

[spider]

How do you set this setting?  Canon menu or ml menu?

In the regular Canon menu.

[CFP]

I dont think we will never get any benefit from a 95 MB/s card. [...] I think the HW limit is 37.1 to 37.3MB/s

You may be right.

But I could swear that I saw a few benchmarks from the 650D in one of the older threads which stated 42 Megabyte/s speed.
And since the camera supports UHS-I the hardware should be capable of doing almost 50 Megabyte/s. But there's only one way to find out what's the real limit: Turn the mode dial to "M", disable LiveView and run the Read/Write benchmark ("Debug" tab -> "Benchmarks" -> "Card R/W benchmark (5 min)"). After the benchmark finished, upload the .BMP image from the SD-Card and post it here.

Please do that with a 45 Megabyte/s card and a 95 Megabyte/s card so that we can see if there's a difference or not.
And make sure that you are in "M" mode with the LiveView turned of, since we don't want the firmware to limit the speed.

The more information you gather the higher are the chances to find and remove the current limitations

[1%]

Heh.. .the EOSM controller is just like the 6d controller.. you'll probably get at most 41MB until something new is found. You probably need to hack dialog timers to get that. Theoretical is 50MB, thats being eaten somewhere.

[CFP]

Heh.. .the EOSM controller is just like the 6d controller.. you'll probably get at most 41MB until something new is found. You probably need to hack dialog timers to get that. Theoretical is 50MB, thats being eaten somewhere.

... Eaten by the firmware, right?

Still, I'd like to see a benchmark from the 650D. Maybe it's different from the EOS M and 6D? Who knows.
But of course I can't test it. All I can do is showing you how a hardware limit looks like: Benchmark EOS 600D + SanDisk 45 Megabyte/s

And at least a developer showed up

[1%]

On 50D I'm writing faster than I'm benchmarking. I don't think they're any different.. same generation interfaces all around and sandisk 45MB/s being all winner.

650D/EOSM just have more crap running and constantly resizing the LV to 720P60 (eosM.. 650D has normal lv?)with halved FPS.

[spider]

With this card: http://www.amazon.de/SecureDigital-Capacity-Speicherkarte-Frustfreie-Verpackung/dp/B00422J0CG/ref=sr_1_1?ie=UTF8&qid=1372608707&sr=8-1&keywords=sandisk+sdhc

[midnite]

So the Picture Quality setting does change the Shoot_Malloc size. Just like on the 600D and 60D. Good to know.
I wonder what you've done that midnite haven't done?

i was lazy to go through 'em all.  i tried only S M and L settings:) sorry. anyway its good to hear 650d has 95mb buffer:)

*moar tests are comin

[midnite]

my 650d's benchmark results:

made with that card: http://www.amazon.de/SanDisk-SDSDXPA-032G-X46-Extreme-SDHC-Speicherkarte/dp/B005LFT3QG/ref=sr_1_10?s=computers&ie=UTF8&qid=1372613343&sr=1-10&keywords=sandisk+sdhc



settings didnt showed up like spiders's. but i got same settings. global draw:off, photo mode (m), build satriani 28.06.13

(Pic Q set to Raw) - Just got 4070frames of 1280x720 which is close to continuous right? or should i call it continuous?

[CFP]

Just got 4070frames of 1280x720 which is close to continuous right?

Almost 3 minutes! Nice

Not continuous (If you can fill your card I'd call it continuous) but enough for many situations. And way more than you can get with the 600D.

Good to see some benchmarks and more information about the 650D and 700D. So there is space for improvements. Squeezing out a bit more buffer and killing what ever eats the write speed should be possible. But with 95 Megabyte buffer and 37 Megabyte/s write speed the cameras are quite usable for RAW videos in my opinion.

By the way, are you German? Because you're using the German Amazon page ...

[midnite]

Almost 3 minutes! Nice

Not continuous (If you can fill your card I'd call it continuous) but enough for many situations. And way more than you can get with the 600D.

Good to see some benchmarks and more information about the 650D and 700D. So there is space for improvements. Squeezing out a bit more buffer and killing what ever eats the write speed should be possible. But with 95 Megabyte buffer and 37 Megabyte/s write speed the cameras are quite usable for RAW videos in my opinion.

By the way, are you German? Because you're using the German Amazon page ...

No, i'm not german, spider is... probably.  (i was lazy to search my card in google so i copied his link and did my search there)

so... 95mb/s sd has an advantage of ~1mb/s to 45mb/s sd right?

[mdfaisal]

With this card: http://www.amazon.de/SecureDigital-Capacity-Speicherkarte-Frustfreie-Verpackung/dp/B00422J0CG/ref=sr_1_1?ie=UTF8&qid=1372608707&sr=8-1&keywords=sandisk+sdhc

I have sandisk extreme pro 45mbs but my benchmark is lower than spider.  Write is about 20...

I have no clue why spider have a very fast r/w  benchmark

My Raw video recording 1280x720,  24p only 4 second.

[Walter Schulz]

I can confirm spider's benchmark numbers.

If you have an USB 3.0 cardreader you can test your card with something like CrystalDiskMark (Windows only).
It is possible - sadly - that your card is a fake.

Ciao, Walter

[spider]

I have sandisk extreme pro 45mbs but my benchmark is lower than spider.  Write is about 20...

Where did you buy the card?
You have to be carefully there are a lot of fake cards.

Example:
http://www.ebay.com.au/gds/beware-of-fake-1gb-2gb-4gb-8gb-usb-flash-drives-on-ebay/10000000000792498/g.html
http://www.ebay.com.au/gds/fake-sandisk-extreme-compact-flash-cards-exposed/10000000001449653/g.html

I also made a new video with 650D

[apefos]

Did some card speed tests in USB3.0 card reader in the PC with the CrystalDiskMark software:

The Sandisk Extreme 45MB/s 32GB SDHC UHS-1 Class 10 can read at 46,8MBps and Write from 40.5MBps to 42.7MBps

[Walter Schulz]

A sucessful ML benchmark run will write a file called VRAMx.BMP (x=number, starting with zero) to the root of your SD-card. Please upload it to a file/image hoster and link it here.

Ciao, Walter

[apefos]

thanks for the tip.

I do not own a 650d or 700d, I own the 600d.

In 600D the benchmark keeps around 21MBps

[Walter Schulz]

- Oops! Mistook you for "mdfaisal". My wrong! -

Ciao, Walter