Pentax K-5 II Review

 
Camera Reviews / Pentax Cameras / Pentax SLR i Review

Pentax K-5 II Flash

 

Pop-up Flash Test Results

Coverage and Range
A moderately powerful built-in flash, with narrow coverage. About average exposure compensation required.

18mm, ISO 100 135mm, ISO 400
Normal Flash
+0.7 EV
Slow-Sync Flash
+0.3 EV

Coverage and Exposure. Flash coverage was rather narrow at wide angle (18mm) with the 18-135mm kit lens. Coverage was more uniform at telephoto (135mm), but corners were still a little dim, though some of fall-off is due to the lens itself. In our Indoor test, the Pentax K-5 II's flash required +0.7 EV flash exposure compensation to get bright results, which is about average for this scene. Auto white balance was however quite cool. The camera's Slow-Sync flash mode produced bright results with +0.3 EV exposure compensation, though with a strong yellow-orange cast from the room lighting.

Flash Range: Wide Angle
6 ft 7 ft 8 ft 9 ft 10 ft 11 ft
Click to see K52FL06W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL07W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL08W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL09W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL10W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL11W.JPG
1/50 sec
f3.5
ISO 100
12 ft 13 ft 14 ft 15 ft 16 ft
Click to see K52FL12W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL13W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL14W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL15W.JPG
1/50 sec
f3.5
ISO 100
Click to see K52FL16W.JPG
1/50 sec
f3.5
ISO 100

Flash Range: Telephoto
6 ft 7 ft 8 ft 9 ft 10 ft 11 ft
Click to see K52FL06T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL07T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL08T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL09T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL10T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL11T.JPG
1/180 sec
f5.6
ISO 100
12 ft 13 ft 14 ft 15 ft 16 ft
Click to see K52FL12T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL13T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL14T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL15T.JPG
1/180 sec
f5.6
ISO 100
Click to see K52FL16T.JPG
1/180 sec
f5.6
ISO 100

ISO 200 Range. At 18mm, f/3.5 and ISO 200, our flash target remained bright out to 12 feet, though images were still usable out to about 14 feet. At 135mm and f/5.6, flash exposure started out slightly dim at 6 feet, but brightness fell rapidly from 9 feet on.


Manufacturer-Specified Flash Range
Wide Angle Telephoto
Click to see K52FL_MFR122WM0100.JPG
12.2 feet
ISO 100
Click to see K52FL_MFR076TM0100.JPG
7.6 feet
ISO 100

Manufacturer Specified Flash Test. The Pentax K-5 II's flash is rated with a GN of 13 meters at ISO 100. That translates to about 12.2 feet at f/3.5 and about 7.6 feet at f/5.6, the maximum aperture of the 18-135mm kit lens at wide angle and telephoto respectively. In the shots above, the K-5 II's flash performed to specification at wide angle, but our flash target was underexposed by about 1/3 EV at full telephoto. 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 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.

 

Pentax K-5-II



Print the flash page for the Pentax K-5 II digital camera reviewPrint this Page

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.

Follow Imaging Resource

Purchase memory card for Pentax K-5 II digital camera
Enter this month to win:

1 $300 Adorama Gift Certificate

2 $200 Adorama Gift Certificate

3 $100 Adorama Gift Certificate