Panasonic has been including video capability in its Micro Four Thirds lineup since the introduction of the Panasonic Lumix DMC-GH1 back in 2009. The mirrorless design of the G-series cameras makes them particularly suited to movie shooting since unlike DSLRs, the sensor is unimpaired by a mirror in the light-path, and is used full-time for image composition and focussing.
The GF3 can be set to capture video in one of two formats, AVCHD or Motion JPEG, and has a capture rate of 30fps. In AVCHD mode, when set to its highest quality setting (FSH), the GF3 offers true HD video capture at 1920 x 1080 pixels in 60i (interlaced) mode. In SH mode, video is captured at 1280 x 720 pixels in 60p (progressive) mode.
Motion JPEG video is captured at 30fps, in a choice of 1280x720, 640x480 or 320x240 pixel resolution. The GF3's built-in microphone captures mono audio. There is a small built-in speaker for in-camera video playback.
|Sizes||• AVCHD :
FSH: 1920 x 1080, (60i*, 17 Mbps)
SH: 1280 x 720, (60p*, 17 Mbps)
• Motion JPEG:
1280 x 720, 30fps
640 x 480, 30fps
320 x 240, 30fps
* Sensor output = 30fps
|Audio||Dolby Digital Stereo Creator format, wind-cut feature|
|Format||AVCHD / QuickTime Motion JPEG|
|File size||Max 17 MB/sec (1080p AVCHD)|
|Max file size per clip||2.0 GB for Motion JPEG, card capacity for AVCHD|
|Running time||Up to 2GB for Motion JPEG, up to capacity of card for AVCHD (Limited to 29 minutes on models sold in Europe).|
Using Movie Mode
Capturing video on the GF3 is no more complicated than pressing the dedicated motion picture button on the top of the camera. As with the GF2 though, exposure control when shooting video is rather limited. You can, however, capture video in any of the 'Photo Styles' or 'Creative Control' modes.
|This screen shows video capture with key shooting information overlaid.||In iA mode, the 'defocus' slider allows you to change aperture during the video.|
When compared to shooting stills, working in video mode offers you significantly less control over exposure parameters. User-selected ISO settings are overridden by the camera. The cumulative exposure value is set by the camera, regardless of the exact combination of shutter speed, ISO and aperture that appear on the screen before you start recording. In other words, the camera will make adjustments on its own to try and achieve a pleasing exposure.
Ironically, to obtain more direct control you need to switch to the (automated) iAuto modes. Either of the two modes will allow you to adjust aperture during the video via the 'defocus' slider. Setting the camera to iAuto+, however, gives you the additional option of setting exposure compensation and white balance before you start recording.
During video recording you can focus manually or use continuous AF so that the camera will automatically lock focus on a subject within the AF area. As with the Panasonic Lumix DMC-G3, the GF3 is capable of rack focus during videos. This feature allows you to choose a specific area on which to set focus simply by touching the screen. The camera will then shift focus from its current location to the one you have just designated.
Sample Video 1This video shows the GF3's Mini mode Creative Control filter. In this mode, audio is disabled and video is captured at roughly 10fps. Playback is therefore accelerated, with playing time about 1/10 of the actual recording time.
|1920 x 1080i, AVCHD, .MTS file, 6 sec. 16.48 MB Click here to download original .MTS file|
Sample video 2
|1920 x 1080i, AVCHD, .MTS file, 14 sec. 32.67 MB Click here to download original .MTS file|
Sample video 3
|1280 x 720, Motion JPEG, .MOV file, 17 sec. 61.47 MB Click here to download original .MOV file|