Timings & File SizesThe EOS 350D is a significantly better performer than the EOS 300D. Power On time is now virtually instant, record review faster, play back is faster, continuous shooting is both faster and has a larger buffer and file write (CF throughput) has more than doubled. Overall a very good performance which with the exception of continuous shooting rate actually puts it on a par with the EOS 20D. Timing Notes: All times calculated as an average of three operations. Unless otherwise stated all timings were made on a JPEG Large/Fine (3456 x 2304) image (approx. 2,500 KB). The media used for this test were:
Continuous Drive modeTo test continuous mode the camera had the following settings: Manual Focus, Manual Exposure (ISO 200, 1/400 sec, F5.6). Measurements were taken from audio recordings of the tests. The tests carried out below measured the following parameters for both JPEG (Large/Fine) and RAW:
The media used for these tests were:
Burst of JPEG (Large/Fine) images
Burst of RAW images
Interpreting the above results we can see that the frame rate for the initial burst of shots is always 2.9 frames per second. Shooting JPEG Large/Fine you can expect to be able to shoot between 27 and 23 frames in a burst (with a fast CF card), after this the burst rate will drop to approximately 1.8 frames per second continuously. If we shoot a burst then wait it should take only six seconds before the entire burst has been written away and we can shoot another full burst again. The EOS 350D's continuous shooting capability is transformed compared to the EOS 300D, it shoots both faster and for longer thanks to a bigger buffer, faster processing and better CF throughput. You can fire off almost thirty JPEG shots in a burst compared to the EOS 300D's four shots. This is also noticeably better than most of the competition, certainly at the sub-$1000 end of the market. File Flush TimingTimings shown below are the time taken for the camera to process and "flush" the image out to the storage card. Timing was taken from the instant the shutter release was pressed to the time the CF activity indicator beside the LCD monitor went out. The EOS 350D will begin writing images as soon as it can and continue to write 'in the background' while you take further shots / change settings. The media used for this test were:
Unless you're shooting RAW + JPEG you shouldn't expect a single write event to take longer than two seconds and shooting JPEG around one second. This is very fast and means that the EOS 350D empties its buffer very quickly and never leaves you waiting to take the next shot. As you can see from the results below the EOS 350D produced an almost identical write performance as the EOS 20D, around 4.7 MB/sec for JPEG's and 5.6 MB/sec for RAW files (more than twice as fast as the EOS 300D). Considering the EOS 350D's budget pricing this is a very good performance. Card performance: JPEG Fine burst
Card performance: RAW burst
Cardbus 32-bit CF Adapter benchmark
The results above were produced by measuring the write time for a burst of shots, this gives a more accurate measurement of actual throughput. Note that the CF cards used were all high speed and in our fastest device (the Delkin Cardbus 32-bit CF Adapter) were capable of around 9.8 MB/sec. Battery lifeThe EOS 350D uses a smaller NB-2LH Lithium-Ion battery which provides 720 mAh at 7.4 V, that's about 65% of the capacity of the EOS 300D's BP-511 battery and about half of some batteries used in other digital SLR's. Despite this the NB-2LH appears to provide good lasting power, we used the 350D at PMA 2005 for our show report images, well over 300 shots per day and didn't get a battery warning indicator once. Canon claim that the NB-2LH is capable of delivering the same number of shots as the BP-511 did in the EOS 300D, 600 shots without the flash and 400 with 50% flash usage. |
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