cazza132
23-03-2017, 05:24 AM
The Milky Way rises over a lakeside tree under still conditions. This was shot using a 642nm IR filter on a full spectrum modified Canon 6D.
Five things that are very cool about night time infrared
1) It cuts out light pollution like no other filter can,
2) Foliage on plants fluoresce under visible light and emit infrared at about 800nm at very high efficiency - giving a slight green colour to the foliage after WB adjustment (instead of black with a normal camera) - so no artificial lighting required in many circumstances,
3) Using a 642nm filter reveals all Ha from nebulae emissions,
4) Sky-glow details near the horizon are very prominent,
5) Sensitivity is about the same (using a 642nm IR filter on a full spectrum modified camera) as a normal camera (unmodified) for astrophotography.
Anyway, something a little different :)
Five things that are very cool about night time infrared
1) It cuts out light pollution like no other filter can,
2) Foliage on plants fluoresce under visible light and emit infrared at about 800nm at very high efficiency - giving a slight green colour to the foliage after WB adjustment (instead of black with a normal camera) - so no artificial lighting required in many circumstances,
3) Using a 642nm filter reveals all Ha from nebulae emissions,
4) Sky-glow details near the horizon are very prominent,
5) Sensitivity is about the same (using a 642nm IR filter on a full spectrum modified camera) as a normal camera (unmodified) for astrophotography.
Anyway, something a little different :)