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Messages - squig

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1
General Chat / Re: BMPCC 4K
« on: August 05, 2019, 01:28:45 AM »
Q: shallow DoF. I use 5D3 mainly with f/1.4 primes to obtain a good shallow DoF (I usually don't use wide lenses, so in my case, I'd use Speedbooster only for increasing the "speed").
Now, let say we have two scenario: 1. BMPCC4K + SpeedBooster + f/1.4 EF lens, 2. BMPCC4K + f/0.95 mFT lens. Which of these two options can go closer to the percentage of in-focus/out-of-focus of 5D3 + f/1.4 EF lens? Are the two options equally close?

It depends which speed booster you're using, I have a 0.71x Viltrox which is a 1.35x crop DCI (1.44x UHD). With a 0.64x speed booster it's a 1.22x crop DCI. https://www.metabones.com/article/of/SpeedBooster_for_BMPCC_4K I almost never shoot any shallower than f/2.8. I haven't done the math, but with either speed booster an f/1.2 lens would be close, I'd go with a de-clicked f/0.95 lens to be exact.

2
General Chat / Re: BMPCC 4K
« on: August 05, 2019, 01:00:43 AM »
Innocent question here: Are there any other ways in which the BMPCC4K is superior in video quality to 5D3 w/ Magic Lantern?

Apart from the differences in dynamic range, the 5D3 has a full-frame sensor, better low-light capabilities (maybe?), can record in 14-bit lossless, can also achieve 4K through crop_rec, as well as achieve dual ISO through the dual_iso.mo.

Software reliability aside, I too have been debating with myself on whether or not to invest my money in a 5D3 as opposed to a BMPCC4K from a purely video quality standpoint.

Check my previous post on low light. Crop mode comes with a huge rolling shutter penalty, and dual ISO introduces aliasing and takes a lot of time to post-process. The 5D3 does upscale to 4K nicely. I use a 1/8 black promist filter with the P4K to take the digital edge off.

3
General Chat / Re: BMPCC 4K
« on: August 05, 2019, 12:46:58 AM »
my 550D and 650D were amazed in lowllght until i bought a 70D. my 70D was amazed until i bought a 5D mark III. your BMPCC 4k wil not be amazed once you compare with a 5D mark III

Says the guy who hasn't thoroughly tested one. I own both. With a speed booster, the BMPCC 4K is just as capable as the 5D in low light, if not more so, with no fixed pattern noise and more dynamic range.

4
Hehe. Thanks.

5
Share Your Videos / 5D MK3 14bit lossless: election campaign films
« on: June 02, 2019, 04:56:58 AM »
I just did a few jobs for independent candidates running for parliament. Besides some gopro adventure footage at the beginning of the first film, it's all 5D MK3 14bit lossless. 99% shot with an old Leica 35mm summicron-r, a few shots with the 90mm summicron and 135mm elmarit-r. Almost all of it shot from the shoulder. Also used a B+W Käsemann polariser and a cheap Hoya ND. Cut and graded in Resolve 16 with filmconvert and http://www.colorghear.com/ , upscaled to UHD. Over 11 days of shooting over 2 terabytes, Magic Lantern crashed once, no files lost.




6
Reverse Engineering / Re: CMOS/ADTG/Digic register investigation on ISO
« on: November 05, 2018, 01:31:08 AM »
I'm seeing really severe highlight clipping with mv1080p ISO 100 and ISO 3200.

ISO 100


mv1080p ISO 100 (white level 5000)

7
Oops, my bad.

I tested the latest build 12bit 1920x2352 3200/100 ISO, same lighting/shot as my earlier tests: it looks completely clean, no vertical stripes or noise. Nice work.

8
@Danne the movie menu options are all greyed out.

9
Big improvement on the stripes with the latest 14bit build. I had to shoot 3200/200 DUAL ISO -3EV to see them.

10
Uploaded two new builds.
1920x2320, fps23.976

Tried 10bit in daylight both dualiso and regular raw and footage looks ok. Tried some stress testing against a lamp but couldn't find any stripes.
Feel free to do some stress testing against either build.

Stripes still there on the 14bit build.

11
Cool thx. Yeah it's beer o'clock here too :D

800/100 ISO 1x3 10bit



same shot +1 EV




12
Can you upload one with a little less width and 14bit lossless? 1320x2412 would do nicely. I'm trying to figure out whether there's any increase in dynamic range. So far 10bit 1x3 dual ISO looks about the same DR as 3x3 14bit lossless (no dual ISO).

The vertical stripes are hidden in the shadows up to 1600 ISO, beyond that it's visible on the graded shots.

13
Check out SLRmagic for new anamorphic lenses. An Isco Star + a front focus element is a good option. Iscorama 36 is the bomb, costs a bomb too.

I've been doing some tests on the build you posted. Nothing conclusive yet. Definitely less noise than 3x3 but there's some vertical fixed pattern noise. Getting pink frames at the end of every recording and had one in the middle of a 100/800 dual ISO recording.

14
The other way to get the data rate down is to shoot 1280x2368 with 1.5x anamorphics. Preferably 14 bit lossless 1280x2412 for 2.39:1 output.

15
Got a build I can have a play with?

16
Cool. Are you getting full-res liveview?

17
Camera-specific discussion / Re: Canon 700D / T5i
« on: September 23, 2018, 01:17:37 PM »
I get that the 700D is skipping, not binning; but I've noticed there's less aliasing on the 5D Mk3 in 1x1 with dual ISO than with 3x3. The problem with 1x1 (besides the rolling shutter) is more visible noise. I'm wondering how 1x3 has reduced the noise so much, and would it apply to the 5D Mk3 too? I'm up for testing a test build.

18
The +5EV 1x3 dual ISO shot looks amazing. Dude, where's my noise?

Am I imagining things or is the rolling shutter reduced too?

A ML anamorphic stretch should fix the LiveView problem. 

2K 1.5x anamorphic scope (1413x2574) is a slightly lower data rate than 1736x2214 1x3 @80MB/s. 2K 14 stop 5D Mk3 anyone? :D

19
Is it a bad idea to color correct in premiere using a regulation layer? I personally don't like using CDNG becouse requires extra passages and also after effects render really slowly on my pc (I don't know why it doesn't use my GTX 960M, I tried different tutorials, instead premiere do it and of couse is much faster). Is there any tool which convert AVI from MLVapp in the kind of AVI supported by premiere?

After Effects video frame rendering is CPU only. Use AE CS6 or CC 2014 for multiprocessor rendering, it's much slower (single processor) in CC 2015 onwards. Resolve is much faster.

20
Camera-specific discussion / Re: Canon 80D
« on: April 25, 2018, 01:14:45 AM »
13 stops dynamic range
On sensor ADC
Dual pixel AF
80MB/s write speed

Couldn't shoot cats with it.

21
I've been messing around with the 1.5x Iscorama shooting 4K scope 24p anamorphic (2304x1382 with a 25% upscale). With a 24mm Leica-r it's equal to 40mm full frame. Shot at 3200 ISO with ACR chroma noise reduction. Filmconvert Fuji 8553 LUT.


22

Tested at home:
CPU - 4790K 4.2Ghz
GPU - Nvidia GTX 1080
SSD
23.976 fps (realtime both mlvfs/no mlvfs) CPU Load ~43%

bb

Hmm. Mac OS or Windows?

23
Squig. Could you post a short sample file? I´d like to test it over here on my computer and check how slow/fast it is.

https://drive.google.com/open?id=0BzJ3L6nv6Fn0RG9tUzBmY3phb1k

24
Only adjust white balance, exposure, sharpening, and noise reduction in ACR. Messing with contrast, blacks, highlights etc will cause flickering.

25
Thanks for the answer and sorry about forgetting "-d" :).

No problem. It seems more like a disk access issue, but my SSD and raid have 400MB/s+ read speeds. The 3K file is only 185MB/s, and that's not an issue playing DNGs in Resolve at that data-rate.

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