Canon T5i Review

 
Camera Reviews / Canon Cameras / Canon EOS i Review

Canon T5i Flash

 

Flash Test Results

Coverage and Range
Inconsistent flash exposures with somewhat uneven coverage at wide angle. Average positive exposure compensation required.

18mm @ f/3.5
55mm @ f/5.6
Normal Flash
+0.7 EV
Slow-Sync Flash
+0.3 EV

Coverage. At wide angle, the Canon T5i's built-in flash produced some dark corners, though that's not unusual. Coverage was a bit uneven vertically as well, with slightly dimmer band in the middle. Coverage is more even at full telephoto, though, as expected.

Exposure. Indoors, under incandescent background lighting, the Canon Rebel T5i's flash performed well, requiring an average amount of positive exposure compensation of +0.7 EV for a bright image, and the camera chose a fairly typical 1/60s shutter speed. The camera's slow-sync flash mode only required +0.3 EV exposure compensation for bright results, though the longer shutter time (1/15s) results in a warmer orange/yellow cast from the ambient background lighting.

Flash Range: Wide Angle
6 ft 7 ft 8 ft 9 ft 10 ft 11 ft
Click to see T5IFL06W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL07W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL08W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL09W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL10W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL11W.JPG
1/64 sec
f3.5
ISO 200
12 ft 13 ft 14 ft 15 ft 16 ft
Click to see T5IFL12W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL13W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL14W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL15W.JPG
1/64 sec
f3.5
ISO 200
Click to see T5IFL16W.JPG
1/64 sec
f3.5
ISO 200

Flash Range: Telephoto
6 ft 7 ft 8 ft 9 ft 10 ft 11 ft
Click to see T5IFL06T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL07T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL08T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL09T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL10T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL11T.JPG
1/64 sec
f5.6
ISO 200
12 ft 13 ft 14 ft 15 ft 16 ft
Click to see T5IFL12T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL13T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL14T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL15T.JPG
1/64 sec
f5.6
ISO 200
Click to see T5IFL16T.JPG
1/64 sec
f5.6
ISO 200

ISO 200 Range. At the 18-55mm lens' maximum wide-angle setting, our flash range test shots at ISO 200 started out dim at 6 feet, but increased slightly from there up to about 11 feet, where exposure dropped-off with distance. The peak exposure is still a bit dim, but we'd say the range is 11 feet. At full telephoto (55mm), behavior was similar with somewhat dim results at 6 feet, exposure peaking at 8 feet, then falling off from there.

Manufacturer-Specified Flash Range
Wide Angle Telephoto
Click to see T5IFL_MFR123WM0100.JPG
12.3 feet
ISO 100
Click to see T5IFL_MFR077TM0100.JPG
7.7 feet
ISO 100

Manufacturer Specified Flash Test. The Canon Rebel T5i's built in flash has a rated Guide Number of 13 meters or 43 feet at ISO 100. That works out to about 12.3 feet at f/3.5 and 7.7 feet at f/5.6, the maximum apertures of the 18-55mm lens at full wide angle and telephoto respectively. In the shots above, we can see that the Canon Rebel T5i's built-in flash did not quite perform to specification at both wide angle and telephoto, producing underexposed targets at the rated distances. The wide-angle shot is underexposed by about 2/3 EV and the telephoto shot by about 1/3 EV.

Note: Our standard test method for flash range uses a fixed setting of ISO 200, to provide a fair basis of comparison between cameras. We've now also begun shooting two shots using the manufacturer-specified camera settings, at the range the company claims for the camera, to assess the validity of the specific claims.

 

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Note: For details, test results, and analysis of the many tests done with this camera, please click on the tabs at the beginning of the review or below.

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