Per @Fred Miranda, I ran some tests of the color shifting/color cast of the NiSi S5 Filters on my Sigma 14-24 f/2.8 DG DN Art lens.
Used in this test, NiSi S5 Filter Holder with the following filters:
1) NiSi Landscape NC CPL, 2) NiSi Pro IR ND64&CPL (6-stop ND + CPL combo), and the NiSi Pro IR ND1000(3.0) (10-Stop ND)
First set with the NiSi Landscape NC CPL Filter:
This filter is designed for Landscape Photographers to provide a CPL with a cooler more natural effect. You can see in the scene below this CPL does in fact tend to remove the warm color cast from this early morning scene. The base scene with no filter was shot with a “Daylight” white balance setting and with the CPL applied the warmer tones are cooled down a bit and the scene becomes more neutral. In effect the filter has removed the color cast but there is still some of the warmer glow on areas of the scene lit up by the early morning sunlight. This can be beneficial when a scene has a strong color cast to it but for this scene I would probably process it by adding back some warmer tones with some additional white balance adjustment. However, I can see where this more neutral effect can be advantageous in many scenes that may have some unwanted color cast. One other observation is that the NiSi Landscape NC CPL Filter reduces about 2-Stops of light when used on the lens.
First image - the Base scene with no filter applied
Second image - with the NiSi Landscape NC CPL and maximum polarizing effect
Third image - with the NiSi Landscape NC CPL and partial (approx. 1/2) polarizing effect
Fourth image – Screen shot of Without CPL (left side) compared to With maximum CPL (right side)
Per @Fred Miranda, I ran some tests of the color shifting/color cast of the NiSi S5 Filters on my Sigma 14-24 f/2.8 DG DN Art lens.
Used in this test, NiSi S5 Filter Holder with the following filters:
1) NiSi Landscape NC CPL, 2) NiSi Pro IR ND64&CPL (6-stop ND + CPL combo), and the NiSi Pro IR ND1000(3.0) (10-Stop ND)
First set with the NiSi Landscape NC CPL Filter:
This filter is designed for Landscape Photographers to provide a CPL with a cooler more natural effect. You can see in the scene below this CPL does in fact tend to remove the warm color cast from this early morning scene. The base scene with no filter was shot with a “Daylight” white balance setting and with the CPL applied the warmer tones are cooled down a bit and the scene becomes more neutral. In effect the filter has removed the color cast but there is still some of the warmer glow on areas of the scene lit up by the early morning sunlight. This can be beneficial when a scene has a strong color cast to it but for this scene I would probably process it by adding back some warmer tones with some additional white balance adjustment. However, I can see where this more neutral effect can be advantageous in many scenes that may have some unwanted color cast. One other observation is that the NiSi Landscape NC CPL Filter reduces about 2-Stops of light when used on the lens.
First image - the Base scene with no filter applied
Second image - with the NiSi Landscape NC CPL and maximum polarizing effect
Third image - with the NiSi Landscape NC CPL and partial (approx. 1/2) polarizing effect
Fourth image – Screen shot of Without CPL (left side) compared to With maximum CPL (right side)
Oct 01, 2019 at 01:32 PM
Previous versions of Chuck Coyne's message #14998184 « Sigma 14-24mm f/2.8 DG DN first impressions »
