Panasonic Lumix DMC-FZ3 Review
Timing & Performance
Panasonic has made much of the performance enhancements offered by its Venus II processor, and the FZ3 seems to bear out many of the claims. It feels very responsive indeed in use - certainly better than we might expect from an 'entry level' super zoom. The only slightly disappointing results are those for power up and power down, which are mostly taken up with the extending and retracting of that big 12x zoom. Once the camera is powered up it is able to keep up with all the action (save for the occasional focus hunting when using the long end of the zoom in low light).
All times calculated as an average of three operations. Unless otherwise stated all timings were made on a 2016 x 1512 Fine JPEG image (approx. 1,300 KB per image). The media used for these tests was a 512MB SanDisk Extreme (aka Ultra II) SD card.
|Power: Off to Record||3.8|
|Power: Off to Play||Image displayed||1.2|
|Power: Record to Off||All activity ceased||4.6|
|Power: Play to Off||When buffer is empty||2.1|
|Record Review||Image displayed||~0,5|
|Mode: Record to Play||1.0|
|Mode: Play to Record||Lens already extended||~0.8|
|Mode: Play to Record||Lens not extended||~3.8|
|Play: Magnify||To full magnification (16x)||~0.7|
|Play: Image to Image||Time to display each saved image||~0.3|
|Play: Thumbnail view||3 x 3 thumbnails||0.9|
|Zoom from Wide to Tele||35 to 420 mm (12 x)||2.1|
|Half-press Lag (0->S1)||Wide angle||~0.7|
|Half-press Lag (0->S1)||Telephoto||~1.3|
|Half to Full-press Lag (S1->S2)||LCD live view||0.15|
|Half to Full-press Lag (S1->S2)||Viewfinder||0.15|
|Full-press Lag (0->S2)||LCD live view, wide angle||~1.0|
|Off to Shot Taken||LCD live view||~4.6|
|Shot to Shot||Flash off||1.6|
|Shot to Shot||Flash on||1.8|
Lag Timing Definitions
|Half-press Lag (0->S1)
Many digital camera users prime the AF and AE systems on their camera by half-pressing the shutter release. This is the amount of time between a half-press of the shutter release and the camera indicating an auto focus & auto exposure lock on the LCD monitor / viewfinder (ready to shoot).
|Half to Full-press Lag (S1->S2)
The amount of time it takes from a full depression of the shutter release button (assuming you have already primed the camera with a half-press) to the image being taken.
(Take shot, AF/AE primed)
|Full-press Lag (0->S2)
The amount of time it takes from a full depression of the shutter release button (without performing a half-press of the shutter release beforehand) to the image being taken. This is more representative of the use of the camera in a spur of the moment 'point and shoot' situation.
(Take shot, AF/AE not primed)
The tables below show the results of our continuous shooting test, indicating the actual frame rate along with maximum number of frames and how long you would have to wait after taking the maximum number of frames before you could take another shot. Media used for these tests was a 512MB SanDisk Extreme (aka Ultra II) SD card. Shutter speed was kept above 1/200 sec during these tests.
Continuous drive mode
In burst mode the FZ3 shows a brief review image for each frame taken, but the live preview does not work between frames. There are three continuous drive modes; High (H), Low (L) and No Limit (∞).
Frames in a burst *1
|2016 x 1512 JPEG Fine||Continuous H||3.9 fps||7||1.5 - 2.9s pause*3|
|2016 x 1512 JPEG Fine||Continuous L||2.2 fps||7||1.5 - 1.8s pause*3|
|2016 x 1512 JPEG Fine||Continuous ∞||2.2 fps||limited by card capacity||n/a|
|2016 x 1512 JPEG Standard||Continuous H||3.8 fps||13||1.5 - 1.8s pause*3|
|2016 x 1535 JPEG Standard||Continuous L||2.0 fps||13||1.5 - 1.8s pause*3|
|2016 x 1535 JPEG Standard||Continuous ∞||2.2 fps||limited by card capacity||n/a|
|1600 x 1200 JPEG Fine||Continuous H||3.9 fps||7||1.5s pause *3|
|1600 x 1200 JPEG Fine||Continuous L||2.0 fps||7||1.8s pause *3|
|1600 x 1200 JPEG Fine||Continuous ∞||2.2 fps||limited by card capacity||n/a|
|*1||In a single "burst" (finger held down on shutter release).|
|*2||In H and L mode continuous shooting stops when the buffer is full (7 or 13 frames according to the file size/quality setting. This is the delay before the next burst|
|*2||The delay of around one and a half seconds is mainly down to the need to refocus before the next burst. By switching the focus trigger to the focus button you can reduce this to ~0.7s.|
Pretty impressive stuff for a compact in this class. We failed to get quite the 4.0 frames per second quoted by Panasonic, but 3.9fps is not far off. The buffer clears very quickly, and most of the delay between bursts is due to the fact that you cannot just hold down the shutter and wait - you have to take your finger off the shutter and press it again. This means waiting for the camera to refocus. By moving the focus trigger to the alternative (delete) button you can avoid this refocusing and reduce the time between bursts to just over half a second. If you want to take a really long burst with no pauses you can always switch to the 'no limit' mode (which averages around 2.2 frames per second).
File Write / Display and Sizes
Timings shown below are the time taken for the camera to process and "flush" the image out to the storage card, the timer was started as soon as the shutter release was pressed and stopped when activity indicator went out. This means the timings also include the camera's processing time and as such are more representative of the actual time to "complete the task". The media used for these tests was a 512MB SanDisk Extreme (aka Ultra II) SD card. .
Time to store
File size *1
Images on a *2
|2016 x 1512 TIFF||~2.1||~0.6||8,497 KB *3||50|
|2016 x 1512 JPEG Fine||~0.7||~0.6||1,317 KB||312|
|2016 x 1512 JPEG Standard||~0.7||~0.6||680 KB||606|
|1600 x 1200 JPEG Fine||~0.7||~0.6||851 KB||507|
|1280 x 960 JPEG Fine||~0.7||~0.6||524 KB||524|
|*1||All file sizes are an average of three files. As is the case with JPEG it's difficult to predict the size of an image because it will vary a fair amount depending on the content of the image (detail and noise).|
|*3||All TIFF files are 8,497KB, and each is saved with a 650K (std quality) JPEG|
With write times averaging around 0.7 seconds for a 3MP Fine JPEG the FZ3 is pretty fast - approximately 1800KB/s, and it's nice to see the very fast write times for TIFF files (8.5MB in just over two seconds). Very impressive stuff, and proof that the Venus II engine is more than mere hype.
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