T5i, continuous shooting speed, and lens corrections
Cliffs notes: Enabling lens CA correction on the T5i severely slows continuous shooting performance.
T5i body prices had gotten too tempting for me and I decided to buy one last week.
After combing through the menus and doing the usual setup ritual, one of the first things I explored was continuous shooting. I wanted to hear how much faster 5fps sounds than the ~3 fps of my T2i.
On the first go I hear: clack clack clack... clack... ... clack... ... clack... ...
Uh oh, that doesn't sound like 5fps. In fact it sounds slower than my T2i.
I decided to do a quick, slightly structured comparison:
T5i vs T2i - total exposure count over 10 seconds of continuous shooting.
Both cameras freshly charged batteries; manual focus, same exposure modes, Large Standard Q jpg, freshly formatted mem cards (T51 sandisk Extreme 45 MB/s; T2i sandisk ultra 30 MB/s)
t2i: 35 frames total
t5i: 23 frames total
Then it occurred to me to re-check settings; I had learned long ago with my XSi that high ISO NR kills FPS; maybe I'd overlooked something else.
Disabling lens CA & Shading correction improved things drasticaly. The T5i repeatedly delivered 48 or 49 frames over 10 seconds. A bit short of Canon's 5 FPS claim, but at least the claim isn't total BS!
I didn't do timed counts with just one lens correction function active. But subjectively the shutter tempo felt unaffected by Shading correction alone, while it slowed noticeably with CA correction alone.
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|Apr 7, 2014|
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