Hewlett Packard R927 Performance

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HP R927 Performance

Timing and Performance

Good speed for a consumer camera.

Startup/Shutdown
Power on to first shot	2.3 seconds	Time it takes for LCD to turn on and lens to deploy
Shutdown	1.6 seconds	How long it takes to retract lens
Buffer clearing time	14 seconds (7 seconds buffer clearing in LF JPEG)	Worst case buffer clearing time. -- This is the delay after a set of shots before you can remove the card. Some cameras won't retract their lenses and shut down until the buffer is cleared.
Mode switching
Play to Record, first shot	1.9 seconds	Time until first shot is captured
Record to play	5.2 seconds	Time to display a large/fine file immediately after capture
Display recorded image	1.0 second	Time to display a large/fine file already on the memory card.
Shutter response (Lag Time):
Full Autofocus Wide	0.67 second	Time from fully pressing shutter button to image capture, zoom lens at wide angle position.
Full Autofocus Tele	0.61 second	Time from fully pressing shutter button to image capture, zoom lens at telephoto position.
Prefocused	0.185 second	Time to capture, after half-pressing and holding shutter button.
Manual focus	0.32 second	For most cameras, shutter lag is less in manual focus than autofocus, but usually not as fast as when the camera is "prefocused"
Cycle time (shot to shot)
Single Shot mode Large Fine JPEG	1.03 second ; 3 frames total; 7 seconds to clear	Time per shot, averaged over buffer length or 20 shots, whichever came first
Single Shot mode 640x480 JPEG	1.06 second ; 3 frames total; 13 seconds to clear	Time per shot, averaged over buffer length or 20 shots, whichever came first
Early shutter penalty?	Single Shot: No Continuous: Yes	Some cameras refuse to snap another shot if you release and press the shutter too quickly in Single Shot mode, making "No" the preferred answer
Continuous mode Large Fine JPEG	0.64 second (1.57 frames per second); 3 frames total; 8 seconds to clear	Time per shot, averaged over buffer length or 20 shots, whichever came first
Continuous mode 640x480 JPEG	0.63 second (1.59 frames per second); 3 frames total; 14 seconds to clear	Time per shot, averaged over buffer length or 20 shots, whichever came first
Flash recycling	6 seconds	Flash at maximum output
Download speed
Windows Computer, USB 2.0	824 KBytes/sec	Typical Values: Less than 600=USB 1.1; 600-770=USB 2.0 Low; 771-4000=USB 2.0 High

The Hewlett Packard Photosmart R927's performance is pretty good here. Start-up time is just a little sluggish, though not too terrible. Shutter lag at both wide angle and telephoto zoom settings is quite good, and "prefocus" times (half-pressing and holding down the shutter button before the final exposure) are fast as well, with a shutter delay of 0.185 second. Shot-to-shot cycle times are speedier than average, at about 1.03 seconds for large/fine JPEGs, though the camera only captures three frames at this rate. Continuous-mode speed is about average, at about 1.57 frames/second, for up to three shots in succession. Flash recycling time is about average, at six seconds. Connected to a computer, download speeds are fairly fast, so you won't feel a need for a separate card reader. Bottom line, the Photosmart R927 is responsive enough for most family photo opportunities, though its maximum burst rate in either standard shooting or continuous modes is a bit low.

Battery and Storage Capacity

Battery
Moderate battery life with the custom rechargeable lithium-ion battery pack.

Operating Mode	Number of Shots
Rechargeable Li-Ion battery, CIPA spec	200
Rechargeable Li-Ion battery, Hewlett Packard spec	110-200 165 average

The HP Photosmart R927 uses a custom rechargeable Li-Ion battery pack for power, which is included along with a charger with the camera. Runtimes are moderate, so I strongly recommend picking up a spare battery and keeping it freshly charged and on-hand for extended outings. (See our battery shootout page for information on actual measured capacities of various NiMH brands and capacity markings.)

The table above shows the number of shots the camera is capable of (on either a fresh set of disposable batteries or a fully-charged rechargeable battery as appropriate), based on CIPA battery-life and/or manufacturer standard test conditions.

(Interested readers can find an English translation of the CIPA DC-002 standards document here. (180K PDF document))

Storage
The Photosmart R927 accepts SD/MMC cards, though no card is included; 23MB RAM is built into the camera.

Image Capacity with 23MB Internal Memory		Fine	Normal	Basic	Economy
3,296 x 2,480	Images	4	9	12	26
3,296 x 2,480	File Size	5.0 MB	2.4 MB	1.8 MB	878 KB
2,592 x 1,936	Images	7	14	19	37
2,592 x 1,936	File Size	3.1 MB	1.6 MB	1.2 MB	615 KB
1,792 x 1,312	Images	14	27	35	57
1,792 x 1,312	File Size	1.6 MB	843 KB	655 KB	399 KB
640 x 480	Images	98	167	204	289
640 x 480	File Size	233 KB	138 KB	113 KB	80 KB