Canon SL2 Flash

Flash Test Results

Coverage and Range
Good range for its size, but with uneven coverage. Above average flash exposure compensation required.

Coverage
18mm @ f/4

Coverage. Canon rates the EOS SL2's internal flash coverage at approximately 17mm, though as you can see in the above shot taken at 18mm, we've found manufacturers' coverage ratings are usually quite optimistic. Peripheral Illumination Correction was on (by default) for this shot, so the fall-off seen here in the corners and vertical edges is mostly from the flash itself. Coverage is also a little uneven vertically, with a couple of dimmer horizontal bands. We doubt you'd notice this in most real-world flash shots, though.


Exposure
Normal Flash
ISO 200, f/4, +0.7 Flash EV

Exposure. Indoors, under incandescent background lighting, the Canon SL2's flash required +0.7 EV flash exposure compensation for our standard shot at f/4 at ISO 200, and it used a shutter speed of 1/60s which is good. Auto white balance was however quite cool. Letting the camera choose the ISO produced a very warm image at ISO 1250 because of the stronger influence of the ambient lighting at the higher sensitivity.

Manufacturer-Specified Flash Range

8.0 feet
ISO 200, f/5.6

Manufacturer Specified Flash Test. The Canon SL2's built in flash has a rated Guide Number of 9.8 meters or 32.2 feet at ISO 100. That works out to a distance of about 8.0 feet at ISO 200 and f/5.6. In the shot above at those settings, we can see that the Canon SL2's built-in flash performed close to Canon's specification, producing a fairly well-exposed flash target at the rated distance.

 



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