When I saw the PureNight filter announced on Lonely Speck, I bought in early. It waited a long time and it finally arrived on Monday just in time for new moon. I headed out to Inks Lake to give it a spin. Here is my unboxing and PureNight filter review.
PureNight Filter Review
The filter is a heavy piece of glass. It is multi-coated to reduce reflections. That should help with shots that include bight light sources. My test was in an area with no visible lights, but considerable sky glow from surrounding human habitation.
I shot a simple star trail using my DIY intevolometer. My settings were ISO1600, 4 Minutes at f/2.8 shot with daylight white balance. Normally, that would have blown out the background sky due to the light pollution. With the filter, the raw files had a nice balanced histogram.
I noticed increased contrast at the horizon where the sky glow is typically at its worst. The filter also produce nearly daylight white balance so my shot needed a tiny bit of green tint, but was otherwise about right at 5200k.
All in all, the filter seems to be a strong win. I look forward to putting it through it’s paces much closer to the city.
Inks Lake Star Trail