Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - ShootMeAlready

Pages: [1] 2 3 ... 11
1
Camera-specific Development / Re: Canon 70D
« on: October 05, 2020, 05:17:31 PM »
It may seem a bit late, but the 70D has a VAF for moire and aliasing. There is also the 3X mode, which does not line skip.  However the intensity of 3X mode is less, as it does not over sample the sensor.  So sensor noise can be a bigger factor.  I have used 3X mode, but for me it takes more effort in contrast & post IQ corrections.  Would not use it for very low light situations, were noise gets closer to amount of light on the sensor; or very bright where the sensor can get over saturated (Ok ND filter would help with this).

As for those who seek another cam. Well for me the next step would be R6 if after a new price, but its only 10bit and that is with c-log processing H.265. The 5D mkIII for a used price and raw video were a priority, it has a built in VAF.

Crying about 70D dpaf, is rather odd to me, as for video, many reviews have shown its very good, but then again its generally used for less than 10% of video shots.  If you are mostly shooting live action, I would think your not going to use a 70D raw, but want a 10bit H.264 1080p camera for live streaming.     

2
crop_rec and derived builds / Re: ArcziPL's crop_rec_4k experiments for 70D
« on: September 29, 2020, 05:38:26 PM »
Sergio in response to
"I also tried resolutions higher than 1832 x 1024 via the 5X zoom trick, but I really find it hard to consider this option as anything other than a technological capability demo. I used it to shoot some portraits of very distant neighbors chilling out on their home balcony during peak COVID stay-at-home lockdown past spring, and the 5X zoom was exactly what I needed. But apart from that specific situation, I wish somebody explained me how to use this feature in real life."

The answer that your are looking for is the Tokina 11-16 f2.8 lens (I recall there is a newer version which goes to 11-20mm f2.8 ) .
5X trick means you have 55 - 80mm, which is very good and has a decent image quality.  And dont forget the 3X mode as well, as that gets you 33-48mm.  So if you think about it, the one lens gets you 11-16, 33-48, and 55-80, all at f2.8 wide open.  And the kicker is the lens is parafocal, so its zooming while limited in range, is done right.
Personally I really love the Sigma 18-35mm on my 70D, which is my wide angle lens of choice, I would shoot it wide open at night.  The canon 28m f1.8, stepped up to f2.8 is rather good as well.  The secret sauce, is that you really shoot fixed focal length most of the time for video.  To really use the tracking for moving objects, you generally want a wide focal length, that keeps your subject in frame with some buffer (crop in post), so again its either the Tokina 11-16mm or the Sigma 18-35mm for excellent tracking.  Recall the 5X and 3X modes dont support the AF subject tracking, so in general your limited at the 1832 barrier.  I think the f5.6 canon zooms, are good for daylight or well lit night shots.  Another truth with video, is that its ok to shoot your subject in partial darkness, or silhouette, as you only occasionally need to see their face. Photographers are the ones who have to get max. detail in one shot, so use your f5.6 lens at night as long as your subject periodically is well lit, it can workout fine.

Oh yes, with the 5X, and 3X tricks, the Sigma lens gets you, 18-35, 54-105, and 90-175mm, all at f1.8 wide open, the lens is not perfectly parafocal but its very good, especially if you use the AF tracking while zooming (centre spot focus for 5X and 3X while zooming will allow AF to work). 

3
Camera-specific Development / Canon EOS M6 Mark II
« on: September 17, 2019, 02:27:28 PM »
And now for something completely different

If you read the specs on the new M6 mk2, you might have noticed it does not shoot 24p, only 60p & 120p.

Its one of those situations where you want to hack it even before it hits the market! Is sooo bad of Canon.

And now we can resume our regular programming.

4
Camera-specific Development / Re: Canon 70D
« on: July 22, 2019, 07:23:38 PM »
I was astounded how good 16:9 FHD 12 bit raw @24fps looked. But its MF, I recall it was continuous, fills up the LCD screen nicely.
The raw video, of 70D is good for still camera (not moving) shots.  You might get away with a slow pan.
But you would want the AF resolutions for "subject walking" or "tracking a fast moving object centre of screen" (Ive seen some really good footage with a monopod).
Raw video with 70D max out at IS0 400, as hot pixels start to appear for higher ISO.
So you might use a flat profile, and shoot H264 at ISO1600 All-I for low light video.  Its surprising how good shooting flat, can be with H264 in low light.
I find the raw is better for highlight recovery, which is stronger in well lit shots, where as shooting flat with H264 All-I has a nice inky black which is useful.
I like the free Marvel picture profiles.  Otherwise there is always the choice to add lighting.

If you like this, then I would get the VAF, to minimize aliasing. 

I also find a bit of noise reduction really helps with aps-c footage, as its not all moire/aliasing that's afoot. 
A FF sensor tends to handle noise better especially low light.

5
Camera-specific Development / Re: Canon 70D
« on: July 10, 2019, 06:53:12 PM »
5 Reasons to use a 70D
- DPAF tracking is required, fast moving objects that you want to track in mostly centre of screen.
- pull focus off the screen, natural speed
- Use the LCD not the viewfinder for menu & touch focus
- Great stills camera and you already have quality Canon mount glass

Video
Well here's where things get really interesting
Its H264 All-I is good to ISO 1600 but the 80D has a better sensor for DR
Lots of free picture profiles for 70D, some even shoot flaat, all good for H264
Anti-aliasing at 3X, with MF (mostly).  This mode requires noise reduction and grading in post (IMHE). 
MLRAW video : APS-C so its 1.6X compared to FF, you may have some quality DSLR glass
- you can shoot 14bit ML raw FHD with MF
- you can shoot 12/10 bit raw most resolutions up to 2.5k at 2:39 24fps, but its MF
- Max AF resolution is around 90% of FHD, 2:39 at 24fps (10/12/14 bit). So with AF you would always need to up-res. for FHD.
- Any resolutions higher than about 90% of FHD, with LCD live-view tracking is zoomed, it shows 3X on LCD, of a 5X frame captured.  So its not the ideal FHD to 2.5k live-view. 
- 720p raw works 24/30 fps 10-14bit, with many ML goodies.
- 60p is only 720p, H264.

Sorry I dont know the M-series, so compare against this general profile.







6
Ok 5X mode on 70D, is like a magic zoom. You see 5X on live view, but the actual video is 3X, so its a wider frame on playback.
Not sure about HDMI out???? Its been a while.
I think I recall you get all the LCD output, with the magic lantern screen stuff (as I recall). 
The HDMI out always required no screen extras, and then you could output to a video recorder.
At 5X and 2.5k @ 2.35:1 24fps, the LCD updates with a lag. So I suspect there's a lag.

7
i dont think you can shoot 60fps in 5X mode. no matter whatever your setting is in canon menu when u zoom in 5X it wil change to 30fps

I was able in 5X to shoot 24 fps.  I was testing 1920x1080 12 bit lossless in 5X, but 5X initially selected goes to 30 fps,
but if you set fps override Timer A to 842 (+170) I was getting 23.9 fps.

I could turn global on, with half shutter press, then set fps override to 23.9 and timer A to +170, and get 24 fps.
Global on you get screen updates every 3s or so.  In camera video playback is slow.  The big problem now is in camera liveview and playback. 

However with 5X cant get higher than 30p.   It would be interesting to compare 70D 12bit raw to 80D H264, to see how 80D sensor DR stacks up.

I suppose to answer my own question,
70D 12 bit raw if shot 1/3 over (expose to right) then it should have better detail. 
80D probably less noise in low light without processing. 
However detail can be traded off, to yield less noise, so it probably is a very fair comparison in the hands of skilled shooter.
I suspect 70D wins via better highlight and overall detail but low light noise about equal for same ISO.   Now for someone to check it out.
The 80D probably wins for high ISO shooting (ISO 3200 in H264) as raw tends to max out around ISO 800 (before hot pixels kick in).


8
As was said in previous reply you can read literal message, but it asks you more or less are you nuts for doing this? (russian roulette with your data)  Then you click - yes, to override. But you are running an experimental build anyways, and your camera came back from the dead so you are fearless.  You should only need to do this once per boot-up.

9
Its the same issue as in « Reply #3356 on: May 15, 2019, 12:09:01 PM »

I found the override in two places, in ML menu, there is in Video Menu and again in the Overview of settings menu (on top far right, scroll down).  Sd module has to be loaded, as well as ML raw modules.

Try clean reboot, set-up, then press it once, exit ML, then 5X/AF and record. That's what I generally did.


10
      @ShootMeAlready

"Using "magiclantern-Nightly.2019Mar15.70D112_crop_rec_4k_mlv_lite_lossless_fps_override_experimental"

Was able to get 2560 @ 2.35.1 23.9p 12bit raw lossless continuous in 5X.  Global was off, generally."

   Here I Go Again > So What do You suppose I am doing wrong > The most I can get, & I get it consistently, is 7Sec's ~

                                 ORR ~ DeanB

       Update > Switching WhiteBalance from Auto to 5200K allows capture of 11Sec's ~

Sounds like you need to engage the overclocking.
- Select ML raw video modules, sd_uhs, and crop (the crop was disabled but I selected it anyways ... superstitious) 
- Select ML raw resoultion 2560 at 2.35.1 aspect, with framing
- in  ML turn global off
- in ML, Sd overclock at 160 MB/s, need to override the warning
- go back check your resolution message, it should be green (or flicker from red to green, I did not always see solid green)
If not reselect the overclock,
- In liveview, on Q menu select 24 fps, ensure AF is not set to facial tracking, I suggest single box
- In liveview, on what is by default the * button on back hit until 5X
- Press liveview, and it may go red, yellow, green, but after about 30s the red disappears.

When you are pre-focus the half-shutter press effects focus/liveview update (play with it)

Hope this helps


11
Shooting 60p raw works with fps override. The problem is the playback takes about 5 (or more) times as long to process the clip. So one really needs overclocking for play back.  You need to use in camera playback for focus checks, so until overclocking works on playback, the fps override is effectively crippled.  No one will routinely wait 5 minutes (or more) to view a 1 minute clip. On the bright side, we have fps override! Overclocking works!  We just have to integrate this into play back.   

12
Camera-specific Development / Re: Canon 70D
« on: May 16, 2019, 02:50:01 PM »
i dont think you can shoot 60fps in 5X mode. no matter whatever your setting is in canon menu when u zoom in 5X it will change to 30fps

Probably right, my 60s test was around 1700+ frames.  That suggests 30p. But in ML it prior to start fps override shows 59.9p.  I get there by selecting 1280 60p, from Q menu, adjust resolution. 

Another thing I recall from my days of using 5X, was that its only 5X on the LCD, but the actual frame is 3X.  Hence the framing mismatch comment.  5X is like a magic zoom for the LCD.   

 

13
Using "magiclantern-Nightly.2019Mar15.70D112_crop_rec_4k_mlv_lite_lossless_fps_override_experimental"

Was able to get 2560 @ 2.35.1 23.9p 12bit raw lossless continuous in 5X.  Global was off, generally.  Very slow playback.

Was able to get 1920 @ 2.35.1 59.9p 12bit raw lossless continuous in 5X.  Global was off, generally.  Extremely slow playback (1minute clip takes about 5 minutes). 

In 5X you only have centre box focus, no facial recog., Without focus peaks it brings into question MF choices. But the picture is gorgeous in detail and depth, it feels like the LCD is maxed out.

I notice it showed centre for box location (5X), but it was actually off to the right third of full screen (1X). 

If you put global back on, screen loads up with "fix me: malloc errors", and even more if you keep pressing buttons to virtually entire screen.

To make this practical, need global on with rgb & focus peaks and ofcourse errors disabled. The playback needs to occur much faster else 60p is too painful.

Also with 5X my Tokina 11-16mm 2.8 starts to become the goto lens. Ok 18mm on the Sigma 18-35mm never sucks either, its just 5X is a lot.

3X mode with 1864 @ 2.35.1 23.9p 12bit raw lossless continuous, this mode has no moire and will also work same for 60p. 3X loses the AF features. 

In regular 1X, 1832 @ 16.9 23.9p 14bit lossless continuous, this mode has full AF capabilities touch screen focus. (the  60p of same is probably continuous I stopped it after 34s but should test to see if it keeps going to say a minute).  The picture is gorgeous, and uses most of the LCD screen.  This mode is rather sexy and for most straightforward shooting a useful mode, having near 1080p @ 16.9 24 to 60p, in 14bit raw lessens my 5DIII desire.  This closest to a broadcast TV quality picture (its not quite 1080p resolution but exceeds TV colour of 10bit). 


14
I only find fps override on exper build,
magiclantern-Nightly.2019Mar15.70D112_crop_rec_4k_mlv_lite_lossless_fps_override_experimental

The problem is that at 2.5k it only runs for 5s, or 150 frames.  There is no overclocking ??? to change the write speed. Also the Timer , will not take 5X back to 23.9 fps.

So what gives?

15
There seems to be a disconnect here. Walter is saying dont fps override, and Andy is doing it to get 2.5k continuous @2:35.1 with 5X.  Am I missing something?

The fps at 30, happens automatically whenever you select 5X. 
So clearly Andy has a trick to get the fps on menu & adjusted back to 23.9 fps.
Whats up wid that?

16
I tried Andy build see May 12th post, reply3342


Not able to get steady 23.9 fps.  I put it in 1080 fps 30 and 5X, and try to fps override, but it jumps around 29.9. 
  What val for timer A? and Timer B? to prevent?

I was getting fast rise in cpu from 41degress to 50 degrees, at 2.5k aspect 2:35.1 and 29.9fps flcikering

- which modules loaded(mlv_lite,_rec_play_snd, file_manager, crop_rec, and uhs_sd???)

In general how does one ensure fps override is on menu??? It seems I lose it from menu???

17
So is variable FPS working? what setting and is there a build I can test.  Cheers.

18
Camera-specific Development / Re: Canon 70D
« on: February 26, 2019, 02:15:34 PM »
Luke Trailwalker, you really want the fastest card at 95 MB/s (Sandisk Ex. Pro.), even to test raw video.  Your resolution is limitted with slower cards.  I dont tend to shoot raw, but my last go was MLV 10bit raw, 1920 at 2:39 aspect. That was continuous, but did not run more than 5min.  Heat occurs with raw video, so even if data transfer rate is supported you really have to watch the heat.  Low ISO a must (400 max).  I found H264 All-I was best with high ISO up to 1600, after which it starts to become dicey.  The other thing which can help low light is a decent denoiser software for post, the Mosaic filter really removes moire but to get cleaner image in low light its the noise you have to remove (my main beef with the 80D is that its 60fps video is IPB is even noisier than All-I in lowee light, so I did not see big benefit with 80D).

19
Camera-specific Development / Re: Canon 70D
« on: January 09, 2019, 06:42:00 PM »
70D if you shoot 10bit raw video, yes it will get hot, as in hot pixels.
Keep ISO to 400 or less, to minimize this when shooting raw.
Same applies to long exposures.

Hot Pixels will kick in within minutes well before any overheat issues.

If you shoot H264 then Hot Pixels are not an issue, and ISO is good to about 1600.


20
Camera-specific Development / Re: Canon 70D
« on: June 03, 2018, 12:22:12 AM »
So Andy where is the May 23/25 build with USH-I, I have a 32GB sandisk ex. pro.  What modules do I load?

21
Camera-specific Development / Re: Canon 70D
« on: May 28, 2018, 06:53:54 PM »
So Andy, I am not clear how you can write 49 MB/s when in the past the card writer speed was max 41 MB/s.
What's up?  Sorry I have not been able to decipher uhs write speeds?

22
Camera-specific Development / Re: Canon 70D
« on: April 01, 2018, 03:06:19 AM »
Wanted to know what folks on Windows 10 are having success with dual ISO for 70D.
I tried one recently and it left me with pink hues and lots of lines across.  I tried to proces the Cr2 file.

23
Camera-specific Development / Re: Canon 70D
« on: February 24, 2018, 06:13:29 AM »
#shootmealready   im aware of the vaf but i don think i wil spend 295$ buying a filter. i bought a 70D sometime back since i love its auto focus and sold out my 650D since pink dots of 650D was annoying so much. shooting in crop mode in a 70D make its auto focus unusable. my question is do you also get moire like me when you shoot raw? or is it only me. i have seen some good raw video shoot with a 70D on youtube

I bought a  VAF shortly after buying my 70D, as I shoot in the city and find things like tiles, bricks, wires, and street car tracks everywhere and annoying to shoot around.  As for 3X mode, it has centre point AF, but mostly I would be using MF and flat pic profile for H264 (which on 70D is good for high ISO shooting), and 10bit raw for general clips (you can also shoot 3X mode raw for up to ISO800). I get moire without filter on, and not 3X.  RAW is very good but takes longer to process, so you have to consider turn around time.

AF is good for motion tracking, and pull focus.  So MF should be used most often, I find with the 70D you can over use touch focus which can lead to wandering focal plane for video. The more you want to control focus the less AF.

24
Camera-specific Development / Re: Canon 70D
« on: February 19, 2018, 02:46:32 AM »
70D has two solutions for moire. 3X video mode is a centre crop without moire.  However to get best H264 video it requires a flat profile, All-I compression, denoise, and post processing.  70D does shoot 10bit raw, check my back posts for resolutions but they will have the moire.  The second approach is a VAF by Mosaic, which generally gets rid of moire aliasing. 

25
Camera-specific Development / Re: Canon 70D
« on: February 11, 2018, 08:08:42 PM »
Ensure you have Canon v1.1.2 firmware.  ** If you ever had ML running recently then you must be v1.1.2.
Ok try reformating your card.  ExFat no quick. 
After done, Copy a jpg file, and read it, just to ensure your card reads/writes. Then blow it away.
Copy ML from nightlies (port in progress) to your SD card. Ensure its extracted prior to copy. It must be only item on card.
Put SD card in camera.
Remove batteries from camera for 60s.
Reboot camera.
Assuming it comes up, go to Fn setting to check version.
Install ML. (you should see some messages as it installs) and then turn camera off/on when instructed.

These above steps have yet to fail me, from a number of crashes, however I have had to remove the batteries twice for 60s, and repeat those reboot/install steps, especially if I am too quick or the bug is in overwriting data from a movie being processed.




Pages: [1] 2 3 ... 11