Neat Video community Forum Index
www.neatvideo.com
Neat Video community
support - help - questions and answers - sharing experience and opinions - feedback - suggestions - backup contact
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

profiling 'auto iso' of canon 5d markII

 
Post new topic   Reply to topic    Neat Video community Forum Index -> General questions
View previous topic :: View next topic  
Author Message
terranaut



Joined: 25 Dec 2005
Posts: 6

PostPosted: Mon Dec 22, 2008 1:57 am    Post subject: profiling 'auto iso' of canon 5d markII Reply with quote

hello, im wondering, if the new 5d markII has an auto iso which jumps around from 100 to 3200, then if i profile a video, isnt the noise profiling useless with any video which doesnt lock an ISO number down, and possibly even make a video worse?
im wondering what the solution is for videos having auto ISO. and if the ISO is locked down, then is that the only requisite for a proper profile, meaning if the aperture and framerate jump around, thats ok?
thanks
Back to top
View user's profile Send private message
NVTeam



Joined: 01 Sep 2005
Posts: 2238

PostPosted: Mon Dec 22, 2008 8:46 am    Post subject: Reply with quote

Adaptive Filtration option in NV should help to some degree. However, if the same clip has areas shot with different ISO rates then it makes sense to build several profiles for such different areas and use them in the corresponding areas. Depending on your video editing application, this can be done using for example, key frames or splitting the clip into scenes.

In any case, Adaptive Filtration option will be useful.

Vlad
_________________
Neat Video team
noise reduction for video and photos
Back to top
View user's profile Send private message Visit poster's website
terranaut



Joined: 25 Dec 2005
Posts: 6

PostPosted: Mon Dec 22, 2008 7:35 pm    Post subject: Reply with quote

ok, with the canon 5d markII it raises/lowers ISO on a second by second basis so it would be close to impossible to divide it up, i guess for anyone who has this camera, the best thing to do is to lock down the ISO as best possible...thanks for the answer, this will be tricky in the future as camera makers have this whole auto-iso thing going on where it changes a multitude of times per minute. perhaps someday neatimage can somehow read the iso of each frame and adjust accordingly, but i doubt canons files saves such data (you can only see the changes during the actual recording only)
thanks for responding so quickly, enjoy the new year
gg
Back to top
View user's profile Send private message
NVTeam



Joined: 01 Sep 2005
Posts: 2238

PostPosted: Mon Dec 22, 2008 7:56 pm    Post subject: Reply with quote

You may still want to try using Adaptive Filtration option, which can help.

Thank you,
Vlad
_________________
Neat Video team
noise reduction for video and photos
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    Neat Video community Forum Index -> General questions All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group