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Casio QV-2300UX Plus

A 2 megapixel swivel-lens design with lots of creative options and a 340-megabyte Microdrive included (US only)

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Page 7:Shutter Lag & Cycle Time Tests
Review First Posted: 1/29/2001

Shutter Lag/Cycle Times
When you press the shutter release on a digital camera, there's usually a lag time before the shutter actually fires. This time allows the autofocus and autoexposure mechanisms time to do their work, and can amount to a fairly long delay in some situations. Since this number is almost never reported on by the manufacturer or other reviewers, and can significantly affect the picture taking experience, Imaging Resource now routinely measures it using a proprietary testing system.

QV-2300UX Plus Timings

Operation Time (secs) Notes

Power On -> First shot 7.1
A bit slow, due to the telescoping lens.

Shutdown 4.0/14.2
Not too bad, given the telescoping lens. The longer time is that required for the Microdrive to spin down before you can remove it.

Play to Record, first shot 3.9
A little slow.

Record to play (max/min res) 1.7/1.7
Pretty fast

Shutter lag, full autofocus 1.02 A bit slower than average.

Shutter lag, manual focus 0.26 Faster than average.

Shutter lag, prefocus 0.19 A bit faster than average. (Lag time with shutter half-pressed and held prior to the exposure.)

Cycle Time, autofocus (max/min res) 2.7/1.7 - 3.2/2.2 A bit faster than average. (Second set of numbers is after buffer fill, about 2 shots.)

Cycle Time, manual focus (max/min res) 1.6/1.2 - 3.2/2.0
A bit faster than average. (Second set of numbers is after buffer fill, about 2 shots.)

In our testing, the QV-2300 started up and shut down a bit slower than average, due to the need to extend and retract its telescoping lens assembly. Shot to shot though, it was a bit faster than average, especially for the first two shots in a series. Shutter lag is a bit slower than average for full autofocus, at 1.0 seconds, but quite a bit faster than average in manual focus and prefocus operation.

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QV-2300UX Plus Timings
Operation	Time (secs)	Notes
Power On -> First shot	7.1	A bit slow, due to the telescoping lens.
Shutdown	4.0/14.2	Not too bad, given the telescoping lens. The longer time is that required for the Microdrive to spin down before you can remove it.
Play to Record, first shot	3.9	A little slow.
Record to play (max/min res)	1.7/1.7	Pretty fast
Shutter lag, full autofocus	1.02	A bit slower than average.
Shutter lag, manual focus	0.26	Faster than average.
Shutter lag, prefocus	0.19	A bit faster than average. (Lag time with shutter half-pressed and held prior to the exposure.)
Cycle Time, autofocus (max/min res)	2.7/1.7 - 3.2/2.2	A bit faster than average. (Second set of numbers is after buffer fill, about 2 shots.)
Cycle Time, manual focus (max/min res)	1.6/1.2 - 3.2/2.0	A bit faster than average. (Second set of numbers is after buffer fill, about 2 shots.)