

It's a heavy overcast day and I began at 1/400 and went down to 1/250 then 1/125 then had to change to ISO 200 (from 400 or 640) to get shutter of 1/60. Just came in from a move-my-butt break with some manual exposed 720p 60fps varied shutter speed samples. My PC hardware( i7 CPU, 16G RAM, and GeForce GTX560) ought to be up to the task, but I wonder what software, lower cost at this point, to consider. I'd like to come up with some interesting close-ups, some in slow motion, of hummingbirds interacting around the feeder. I've only looked at a few short curiosity test shots from my GH3 set a 720p 60fps played directly from the SD card slot on my 42" Panasonic Viera TV. I wonder about what concerns to have for and when editing.

If you really want to know what I think then use the 1080p 60 FPS IPB and you will not regret it. The only time I use less than 60 FPS on the GH3 is when I want to use ETC which cannot be used with 60 FPS modes. I have a hacked GH2 as well but the 1080p 30 FPS just wasn’t cutting it with the fast paced action. I bought the GH3 specifically for this because I wanted 1080p 60 FPS for slow motion. I shoot indoor climbing videos of my son in very dark poorly lit gyms. In fact frame rate is actually MUCH MUCH MUCH more important than All-I vs. I think you can rest assured that if you use the 1080p all-I or IPB you won’t have any issues with the footage at all. Those people have put fear into casual users that if they don’t shoot at extremely high and unstable bit rates they are going to ruin their footage. However, those situations are not going to happen while taking video for a “family video archive”. Yes certainly it can help in some very specific situations. The reason I suggested that you test yourself is that so many people have completely overblown the effects of increasing the bit-rate. Will there be any difference between All-I and IPB after transcoding? I will be working with the files in Final Cut Pro X, probably transcoding them to ProRes 422. So, there are a few options for fast motion, such as sports in GH3: 60fps/1080p in IPB, 60fps/1080i in All-I, and 60fps/720p in All-I. The irony is, though that rapid motion is better recorded in 60fps 1080p, but GH3 doesn't store it in All-I format. All-I is supposed to have an advantage in shots with a lot of motion, because it records every single frame. Has anyone done a direct comparison of 50mbps IPB vs 72mbps All-I in GH3? This opinion comes mostly from Canon forums based on lower overall bit rates than with GH3. Generally, higher bit rates are better, but many people believe that IPB at lower bit rates are superior to All-I at higher rates. Have done a bit of research on different formats, including some Canon forums and here are a few conclusions: I have just received my GH3 and I am getting lost in video formats.
