solutionkmedia

On August 25, 2016 at 9:42 AM, MattH said:

It's a well known artifact with sony cameras.  Referred to mostly as 'highlight aliasing'.  Google 'highlight aliasing' and you will find many hits.  It is a lot more egregious in HD than it is in 4k but its clearly still there. Aparently It was even apparent on the f5 and f55 but was addressed and removed on those cameras.  On other cameras like the fs700 it wasn't addressed.  However, people observed with the fs700 that it could be bypassed with Raw recording.  Go and look at videos shot with sony cameras. Now that you have seen it you will notice it everywhere!  Even in cases were you can't see it obviously it still alters the overal look of the image as a whole, making it seem over sharp and less organic.  Its a big contributor to sonys reputation as giving a video look.    The good news for you is that it is smaller in 4k and in most cases people wont notice it.

Thank you very much, Matt. 

I had been researching google relating to aliasing which is what i figured it was, but adding "highlight" helped me find what I was looking for. 

(This footage was 4K btw)

I've never heard of it until now. It is a bit of a concern to look at, but i've never noticed it on any sony footage until I was pixel peeping my own a6300, so I guess it won't be an issue to my clients either. 

Hopefully a firmware update helps with it, but I won't hold my breath. 

Hey everyone,

Just picked up an a6300 a couple weeks ago and have been testing out it's footage. I love it overall.

I noticed, however, that in situation of contrast, the sensor seems to insert black aliasing lines. My sharpness is off, so doubt that's the issue. I'm curious if other people have this seem quality from the camera? Could it be an a6300 flaw? Or maybe just my model.

Interested in your thoughts.

I attached a couple pictures below to clarify what I mean. Black lines along a shed and along a clothing line.

+1!!!

this is pretty much useless for my purposes. 

Great if you forgot your tripod, but try any deliberate movement and you get some nasty digital jitter. My wife doesn't know cameras and even she went "ew" when she looked at it.

Kind of disappointing. Good effort, but limited usage

​Well it looks like I went through all that for nothing haha. Ah well

​I agree! iFFmpeg I will use if I need those options and can spare the day.

But RockyMountains is just blowing through this footage! Love it

Just noticed everything is in Korean. Pretty easy to figure it out, but in case anyone wants to whip through without thinking, I converted the user interface to English (except the progress window). You just replace the index.html file in the same folder as the program with the one I have attached to this message.

index.html

​Oh! haha, I didn't realize this was released for Mac now. Thanks! I'll give it a go.

Hey guys, I'm getting the opposite results for transcoding with iffmpeg.

Wondershare can convert a 15 second clip in about 30 seconds

iFFmpeg takes 3 minutes.

Any ideas what might be slowing it down?

I'm converting from h265 to standard Prores