Magic Lantern Forum

Using Magic Lantern => General Help Q&A => Topic started by: exomonkeyman on September 02, 2012, 11:52:07 PM

Title: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 02, 2012, 11:52:07 PM
Hello there.

Ever since i got ML & messed around with the settings.

I can never get clean smooth non grainy night and day photos & footage.
Is this a setting on Magic Lantern?

It really all ways seems grainy from ISO 100 to ISO 6400 to ISO 8000 (Footage & Photos)

HELP
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 03, 2012, 01:17:53 AM
Post your settings file and we'll try to help you (ML/settings folder)
Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 01:25:11 AM
Quote from: nanomad on September 03, 2012, 01:17:53 AM
Post your settings file and we'll try to help you (ML/settings folder)

Well settings folder?

ISO: 100-6400 allways give grain
Apiture: 3.5
Shutter Speed: Lowest it can go

Light is a normal house shade light.
Do you mean like that settings?
Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 01:27:15 AM
MAGIC.CFG?

Here.
http://cl.ly/code/011u300c1m25
Title: Re: Really Grainy Images/Film Help please
Post by: ass5001 on September 03, 2012, 02:40:43 AM
yes i get the same problem,even iso100... :-\
and my camera can never go back...
Title: Re: Really Grainy Images/Film Help please
Post by: Roman on September 03, 2012, 08:09:15 AM
Quote from: exomonkeyman on September 03, 2012, 01:25:11 AM
Shutter Speed: Lowest it can go

What are you trying to film with these settings? Sport / fast moving objects?

Generally 180 degrees is the 'norm' for shutter speed, to give a 'cinematic' appearance in footage.

Filming something at 60fps to slow it down with Twixtor or similar to a much slower rate is generally the only time I'd consider raising ISO etc to decrease shutter time to the minimum possible.

This might be contributing to the grainyness perhaps?

Would be the first thing I'd try, as well as to see if the issue persists with different lighting (say outdoors)

Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 09:29:17 AM
Quote from: Roman on September 03, 2012, 08:09:15 AM
What are you trying to film with these settings? Sport / fast moving objects?

Generally 180 degrees is the 'norm' for shutter speed, to give a 'cinematic' appearance in footage.

Filming something at 60fps to slow it down with Twixtor or similar to a much slower rate is generally the only time I'd consider raising ISO etc to decrease shutter time to the minimum possible.

This might be contributing to the grainyness perhaps?

Would be the first thing I'd try, as well as to see if the issue persists with different lighting (say outdoors)

Just generally everything, Iv'e had my shutter speed on the highest it can go
Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 01:16:22 PM
I'm getting wiry on the hole ML ISO stuff.

With canon ISO and ML ISO and how Canon ISO is like 160 when ML ISO is 200 or something like that, and with the hole -1.0EV

Getting tempted to uninstall ML and reset to Canon's 60D factory defaults.
Cause a swear i got better pictures on the stranded canon mode.
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 03, 2012, 02:03:29 PM
Well, upload a test video too since you're here. I'll do a comparison on my camera too just to be on the safe side
If there's an issue we need comparison shots and a config to reproduce it. We got the config, but not the shots
Title: Re: Really Grainy Images/Film Help please
Post by: ass5001 on September 03, 2012, 04:29:15 PM
yes i've post a topic with this problem out of this site
with the same 600D and the 50mm f1.4 camera lens
the ML 2.3 cause more noise than the canon factory setting,even iso 100
below iso 200,it worse
and the strange thing is that iso160 is better than the iso 100 ::)
Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 10:47:51 PM
Quote from: ass5001 on September 03, 2012, 04:29:15 PM
yes i've post a topic with this problem out of this site
with the same 600D and the 50mm f1.4 camera lens
the ML 2.3 cause more noise than the canon factory setting,even iso 100
below iso 200,it worse
and the strange thing is that iso160 is better than the iso 100 ::)

Uhmm this is massive Holt in my time with magic lantern.
I only just re installed ML and tout it was better.
But if this is really true.
I may have to uninstall unless proven wrong or a fix?
Cause no body whats to spend £500-600 on a camera and not get as good picture quality

Is this grain now on the camera at all times now?
Or will it stop if a uninstall ML and reset camera settings?
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 03, 2012, 10:58:32 PM
I've got no posts with videos from any of you. Please post one or stop talking. Thanks
Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 11:01:35 PM
Quote from: nanomad on September 03, 2012, 10:58:32 PM
I've got no posts with videos from any of you. Please post one or stop talking. Thanks

Ok on it.

Should i use YT or VIMEO or RAW download??
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 03, 2012, 11:16:05 PM
RAW please, I can provide an FTP space if you need one
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 03, 2012, 11:18:16 PM
Also: comparisons video and movie.log from ML (and settings from canon)
Title: Re: Really Grainy Images/Film Help please
Post by: exomonkeyman on September 03, 2012, 11:23:16 PM
Uhmm i may need a FTP what ever that is.
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 03, 2012, 11:29:02 PM
Enter the chat and I'll provide details (button at the top)
Title: Re: Really Grainy Images/Film Help please
Post by: 1% on September 04, 2012, 06:55:30 AM
I've owned/used several different cameras ML, no ML and you guys are tripping.

QuoteLight is a normal house shade light.

With low shutter speeds and low iso its probably underexposed.

http://www.qfpost.com/

you can upload raw pic or small video.
Title: Re: Really Grainy Images/Film Help please
Post by: KarateBrot on September 04, 2012, 07:14:06 AM
I don't know what should be wrong with it. With ML I get perfect pictures and videos <3 And I can't say that about the Canon firmware itself.

btw.
If you set the ISO to for example 160 in ML make sure you lower the standard ISO of 200 by -0.3EV to get 160, not by raising ISO 100 or something like that.
Title: Re: Really Grainy Images/Film Help please
Post by: nanomad on September 04, 2012, 09:48:48 AM
It turns out that with default settings magiclantern produces the same noise as canon's firmware (iso 500 in crappy light conditions).
Tweaking the ISO a bit with magiclantern (increase analog iso by 1 stop, apply negative ml digital iso) lead to a better shot according to the op.