Panasonic Lumix DMC-FX77 - Test shots: ISO performance Review

”’As with Panasonic’s Micro Four Thirds compact system cameras and its co-announced FT3 and TZ20 brethren, the Lumix DMC-FX77 offers Auto ISO and ‘intelligent’ ISO for those who want to leave the camera to decide, and with commendable consistency. Here the camera opted for the lowest setting of ISO100 in each case. Otherwise it’s a fairly standard manually selectable range of ISO100-1600, with the top ISO6400 option only available via High Sensitivity mode and so when the camera deems it necessary.”’


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As expected at the lowest ISO100 setting as expected we’re not seeing any noise and detail is pin sharp, though as we were shooting with available daylight our background has been leant a blue-ish cast that could be easily corrected in the image editor of your choosing.


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Little difference is visible in terms of performance as we up the ante to ISO200, so similarly no image noise to report.


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At ISO400, normally the stage at which noise begins to intrude if we’re unlucky. Detail has however held well and even in the murkiest shadow areas we’re not seeing any grain.


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Taking a close look at ISO800 and, apart from another blue/purple colour cast to the image, if there’s noise present it’s very fine indeed and wouldn’t bother all but the most picky of users.


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At ISO1600 we’re now starting to loose some definition and noise is becoming more visible, but this is a setting we’d be happy to keep shooting at nonetheless if the light situation required it.


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We’ve tried the High Sensitivity mode on our test subjects too, which results in a resolution drop in order to better disguise any increase in noise. Detail is, as a result, slightly smudged so the image has the effect of looking cleaner overall. Again a better than expected result from the FX77.


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