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| Visible chromatic aberrations in an "every day shot" | |
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| Our now standard chromatic aberration test shot | |

Barrel and Pincushion Distortion
The 995's new 4x lens seems to have compromised a little with the introduction of even more lens distortion. At full wide angle (38 mm equiv.) we measured barrel distortion as 1.5% and at full tele pincushion distortion of 0.8% (comparible to the 990). It looks as though 995 owners would need to take a look at our technique for correcting lens distortion.
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| Barrel Distortion, 1.5% @ Wide Angle | Pincushion Distortion, 0.8% @ Full Tele |
NOTE: We have slightly modified our lens distortion chart to ensure accurate auto focus.

White Balance
First thing that's noticeable is the strong magenta cast using Auto white balance under Incandescent light, it's fair to say that the auto white balance system works best under natural light. Nikon commented that the white balance system has been tuned to perform best in natural light.
Otherwise, things seem to be relatively good. The pre-programmed white balance settings are fairly accurate (and you can of course always fine tune them) and the manual preset option produces consistently accurate balance and colour hue.
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| Outdoors, Auto | Outdoors, Cloudy | Outdoors, Manual |
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| Incandescent, Auto | Incandescent, Incandescent | Incandescent, Manual |
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| Fluorescent, Auto | Fluorescent, Fluorescent | Fluorescent, Manual |
First word indicates type of light shot was taken in, second the selected white balance mode.

Dynamic Range
Dynamic range simply defines the range of light the camera is able to capture before it either loses detail in darkness (shadows for example) or blows out a highlight (edges of chromed metals are good examples of this). Most consumer digital cameras only have a 8-bit analog to digital converters, plus their CCD's are not built to have a particularly large dynamic range.
Using our new dynamic
range measurement method we measured the Coolpix 995's dynamic range
as (higher numbers are better except for noise):
| Camera | ISO | Noise | Range | Bits | Density | dB |
|
Nikon Coolpix 995 |
100* | 0.08 | 424:1 | 8.7 | 2.6D | 53 |
| 100 | 0.08 | 420:1 | 8.7 | 2.6D | 52 | |
| 200 | 0.09 | 282:1 | 8.1 | 2.5D | 49 | |
| 400 | 0.22 | 143:1 | 7.2 | 2.2D | 43 | |
| 800 | 0.43 | 98:1 | 6.6 | 2.0D | 40 |
Compared to Coolpix 990
| Camera | ISO | Noise | Range | Bits | Density | dB |
| Nikon Coolpix
990 Native JPEG (FINE) |
100* | 0.13 | 446:1 | 8.8 | 2.6D | 53 |
| 100 | 0.19 | 290:1 | 8.2 | 2.5D | 49 | |
| 200 | 0.35 | 168:1 | 7.4 | 2.2D | 44 | |
| 400 | 0.44 | 104:1 | 6.7 | 2.0D | 40 |
* In-camera sharpening set to "Off"
On the whole things seem to have improved. Certainly the 995's automatic sharpening setting seems to be selecting a lower sharpening level (thus less noise and better dynamic range) and actual reproducable range is increased from ISO 200 upwards. These results match what we saw in our ISO tests, clean noise-free up to ISO 200 with good dynamic range. It's clear though that ISO 800 is only for emergency situations.
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