C100: C100 Mark II -- AVCHD or MP4?

BrandonT

BrandonT

Well-known member
I've seen that a lot of people are enjoying being able to record to MP4 on the C100 Mark II. Since that makes it easier with the clip names and files. MP4 may even have slightly higher quality.

I was wondering if there was any downside to using it. Such as, does timecode work correctly? Can you record a clip nonstop, until you max out your SD card or your battery runs out?
 
MP4 on the C100mk2 breaks clips into segments (4GB?) but they join end to end seamlessly. No issues so far, really. Nice to just drag and drop in the finder.
 
MP4 audio is compressed AAC 256kbps whereas AVCHD is linear PCM if I recall correctly. If you're going to have to do a lot of post manipulation to the audio might be best to stick with AVC.
 
If Premiere Pro wouldn't conform PCM, I would stick with ACHD. But every time I load C100 clips, Premiere starts conforming. Any idea why? I've worked with other cameras (F3 at least) where the audio does not need to be conformed.
 
drummondb said:
If Premiere Pro wouldn't conform PCM, I would stick with ACHD. But every time I load C100 clips, Premiere starts conforming. Any idea why? I've worked with other cameras (F3 at least) where the audio does not need to be conformed.
Click to expand...
In my experience premiere does this with everything. It's best not to touch the program at all while it's conforming too, lest the adobe gods smite thee.
 
Thanks for the responses, guys. Now I see that I have options under AVCHD for "24 Mbps LPCM" and for just "24 Mbps". So the LPCM option means better audio, correct? My AF100 footage always had to conform audio in Premiere, which usually only took a moment. So I guess that's what I have had it set to, as well.

Then it looks like the 28 Mbps settings are only for 60p, correct?
 
Hi everyone!

Has anyone got a chance to test out the different bit rates? I assume if you want the highest quality wouldn't you just record at the highest mpbs?
 
The highest bitrates (35 Mbps) are 59.97 framerate only, which should be fine, but ...

I tried dropping some 59.97 clips onto a 23.976 timelines, to get that "film look" back, and the video seemed slightly "jumpy". Does dropping 59.97 clips onto a 23.976 timeline drop frames, causing it look more jumpy than 23.976 clips on a 23.976 timeline?
 
Interpreting 59.97 clips to 23.976 in Premiere Pro will make a slow-motion clip. I'm talking about keeping a 59.97 clip playing in normal speed on a 23.976 timeline.
 
Last edited:
Jarrod Ferris said:
Interpreting 59.97 clips to 23.976 in Premiere Pro will make a slow-motion clip. I'm talking about keeping a 59.97 clip playing in normal speed on a 23.976 timeline.
Click to expand...

If you intend to edit a finished project at 24p, you should probably shoot at 24p. Why do you want to shoot at 60p and edit and playback at 24p?
 
Nate Haustein said:
MP4 on the C100mk2 breaks clips into segments (4GB?) but they join end to end seamlessly. No issues so far, really. Nice to just drag and drop in the finder.
Click to expand...

I'm reviving my thread here. I've still been using AVCHD and am reluctant to switch to mp4. But the quirks of AvCHD are getting a bit annoying lately. Can someone explain in more detail how the clip spanning works on the C100 mk ii? Does it keep rolling (as in, it doesn't stop the clip with you having to hit record again)? Sounds like it does. I believe Nate was saying that it does. If that's the case, there's no clip spanning, is there? If not, what does it do? Just start a new mp4 file at the 4 GB mark? Does Premiere recognize the two files as one clip, or do you have to place them in the timeline yourself? If you do have to do it yourself, are there any skipped frames?

How about quality, any different b/t the two?
 
Bump.

I want to start using mp4 on the C100 Mark II tomorrow. I just wanted to make sure that no one has had issues with it. Thanks!
 
Works fine in my experience. I much prefer the file organization folder structure over AVCHD, but since I still use my two C100 Mark Is, often in conjunction with the C100 Mark II, I typically leave the C100 Mark II on AVCHD so it will match up with the two Mark Is. And when I'm shooting a one camera C100 Mark II shoot, I'll still generally leave it on AVCHD so I won't have to keep switching between shoots.
 
You must log in or register to reply here.
Back
Top