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.

Show posts Menu

Messages - robertgl

Perhaps anything can look like anything in post these days, but the BMPCC has always looked videoish to me in demo vids, while the canon videos look more 'natural' and cinematic.
I think one key takeaway for me is that resolution is not such a big deal when you get into the near-HD resolutions and above. THe most important thing is to get good images, and to avoid 'unnatural' sensor noise like banding and blocking
@660 re:50D

What resolutions & frame speeds did you shoot at? You did not get repeating frames or torn frames?  thanks
Hello 50D user here
1. Magenta frames. It shows up on 10,12 and 14 when using the available modified fw. I haven't tried to change the black levels with mlv_dump, assuming that's the way to do it

2. The first frame keeps showing up in the even frames. So it's like 0,1,0,3,0,5,0,7,0,9,

3. at 1856x*** I get full frames interspersed with that continuing first frame showing up in even frames, while if I go to 1920x**** I get torn frames  with most of the frame being the first frame repeating, while a small sliver is the properly sequenced frame

4. Grayscale preview seems to run fine when recording

5. fingers crossed that the bugs can be ironed out because recordings look amazing and have a smaller files size  8)

Am exporting with : mlv_dump --dng --no-fixcp --no-stripes
debayering in rawtherapee
Camera-specific Development / Re: Canon 50D
June 18, 2015, 07:25:23 AM
The R** files are in fact the spanned files once you hit that 4GB filesize limit.. I'm not sure why you're getting corruption though
Camera-specific Development / Re: Canon 50D
June 05, 2015, 06:38:08 AM
@dogmydog did you find a solution? I hope to never encounter that.. it would suck!

Btw amazon had Toshiba Exceria 1066 32 gb cards for 44$ shipped the other day. I got one and it's getting about 78-82.1 MB/sec after warming up. Now 59$ though  :-X
Camera-specific Development / Re: Canon 50D
May 30, 2015, 06:31:40 PM
Ah too bad! Thanks for the explanation though @Andy600
Camera-specific Development / Re: Canon 50D
May 30, 2015, 05:25:57 PM
I wish 2048 resolution option would be unlocked -  2.20:1 2048x930 for instance would be continuous on most cards; 2048x1080 could probably record for about 45 secs to 1 minute on a fast card

Bitrate issues aside, is there an issue with the camera that prevents 2048 ?
Bad news: nevermind I dont want to be banned
Is it possible to get 2k 2048 and higher recording for the 50D in a future release?
For anybody interested, on my 50D I get around 70~71 MB/sec average with all the optimal settings applied , and it rarely ever dips into anything lower 69MB..
perhaps it doesn't jive well with the 50D's controller.

Seems to be a durable card though - I'm running it on a USB 3 reader via a USB 2.0 port, and it hasn't had any problems
Shoot at an optimal f-stop, and keep the ISO as low as possible.  Also make sure it's in focus.

Because of the large sensor size, lens quality doesn't play as much a factor as it would with smaller sensors, but obviously a zeiss or an equivalent HQ lens will give you the absolute best results.

Otherwise get a GH4, A7s or NX1 and shoot in 4k. They capture detail far beyond the 1080p on the 5DIII.   
Camera-specific Development / Re: Canon 50D
May 20, 2015, 07:23:22 PM
Thanks for the response - I can't find any thing about adjusting the write buffer - how do I do it?

I repartitioned using 'MB' alignment, via partition wizard, formatted it in the camera and am getting a slight increase in speed; ~74 to 75MB at 16/15k buffers
Camera-specific Development / Re: Canon 50D
May 20, 2015, 08:05:36 AM
I just got a pixelflash brand card (32gb) and it's running at around 70MB/sec; I get around 360 frames/ 15 seconds at 1920x1080.. Am wondering if aligning the partition would boost the performance.. should've just gone with komputerbay
Camera-specific Development / Re: Canon 50D
May 16, 2015, 07:03:55 PM
I think the 50D has always had framing issues in crop mode; not sure if that's fixable, but it would be nice.

What's the max resolution for crop mode now? Is 1920x1080 continuous doable?  I remember TL could do continuous a little bit above 1080p
FYI  to anybody interested: I just purchased a 32gig '1000x' (1066x???) off of  eBay for 49$$. I sent an offer and it was automatically accepted. 

Amazon reviews paint it as being mostly reliable, and the one benchmark posted put max speed at 124MB/sec write, ~154MB/sec  read..

I Guess I'll find out soon enough
Can't find any info on these, here, but their 'supersport' line is listed as follows:

PixelFlash SuperSport CF 1066x 165MB/s Compact Flash Memory Card Magic Lantern UDMA 7 1000x
Camera-specific Development / Re: Canon 50D
August 04, 2014, 04:54:37 AM
Quote from: illesi on July 29, 2014, 01:05:55 PM
Hi all! I would like to say thank you to the developers, I really appreciate it.
I made this video mostly with 50d:

Wow that's some awesome footage.. the inter-cutting is nice as well
Tragic Lantern / Re: 50D Raw video
January 17, 2014, 02:53:10 AM
does the 50D run any cooler via a battery adapter?
Tragic Lantern / Re: Raw video on 50d and 40d
September 23, 2013, 08:47:06 AM
RE: the VAF filter - it's just a prototype from mosiac? Can they improve it further?   I said on the video comments that the moire banding is reduced but present.. I would much prefer it all removed if possible. 
Raw Video / Re: RAW video and super 16mm glass?
September 08, 2013, 10:26:55 PM
The adapters on Ebay claim infinity focus. It ultimately depends on the  protusion of the rear element of whatever taking lens that you're using. They will vary
Tragic Lantern / Re: Raw video on 50d and 40d
August 29, 2013, 05:24:50 AM
Well I started testing my cam and the komputerbay 32gb CF card got corrupted. It's on its way back for a refund..
I wasn't expecting these cards to be so fragile..  What card readers do you use? 
Raw Video / Re: RAW video and super 16mm glass?
August 28, 2013, 07:06:43 PM
I have multiple S16 lenses and they only barely cover the corners of a S16 frame.. a 2x range extender should be able to cover APS C though. Anyway crop mode would be exactly why i'd use them.. should be better suited for the smaller sensor window size than full frame lenses
Raw Video / Re: RAW video and super 16mm glass?
August 28, 2013, 04:24:34 PM

6.25 microns times 1920 = 12mm
6.25 microns versus 1080 = 6.75mm

1920 = 8.832mm
1080 =4.96mm

S16 lenses should cover 1080P ezly, based on the pixel pitches

I've thought about getting the PL mount adapter and trying it out as well, but it's a lot of money to experiment.. i guess i can try holding them into the cavity of my 50D
Raw Video Postprocessing / Re: Pomfort ClipHouse
July 19, 2013, 08:28:16 AM
windows please !
how does the x264 achieve 1080p? is it upsampling up from 1584x894?