Fuji X-T10 Flash

Built-in Flash Test Results

Coverage and Range
A weak flash with narrow coverage. Above average positive exposure compensation required.

18mm, f/2.8, ISO 200

Coverage. Flash coverage is rather uneven at wide angle, leaving the corners of our flash target image quite dark at 18mm (27mm eq.), though that's not unusual. Some of the corner shading can also attributable to the lens itself. We no longer test flash coverage at telephoto, as it is invariably better.

Normal Flash, f/4, ISO 200
+1.0 EV
Slow-Sync Flash, f/4, ISO 200

Exposure. Indoors under incandescent background lighting, the Fuji X-T10's flash underexposed our indoor portrait scene at ISO 200 and f/4, despite the +1.0 EV flash exposure compensation used. (An average of +0.7 EV is normally needed for this shot.) You'll likely need to boost ISO (or enable Auto ISO) for typical indoor shots. The camera's slow-sync flash mode required no compensation to produce a reasonably bright shot, though the longer shutter time (1/17s vs 1/125s) resulted in a strong orange cast from the ambient background lighting.

Manufacturer-Specified Flash Range
6.6 feet, f/3.6, ISO 200

Manufacturer-Specified Flash Range Test. The Fuji X-T10's built-in flash has a Guide Number of only 5m at ISO 100, or 7m at ISO 200. That's quite weak and works out to a range of only about 6.6 feet at f/3.5 and ISO 200. As you can see above, the Fuji X-T10 produced a well-exposed flash target using roughly those parameters which means Fuji's flash range spec is credible.

Our standard test method for flash range uses a fixed setting of ISO 200 when a Guide Number is provided, to provide a fair basis of comparison between cameras, or uses manufacturer-specified camera settings, at the range the company claims for the camera (at Auto ISO if so specified), to assess the validity of the specific claims.


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