Hoya Blue Intensifier Filter for Sky & Seascape Photos protection Filter Factor: 2 Glass Type:

Filter Factor: 2 Glass Type: Hoya Optical Number of Multi-Coatings: 6 total / 3 each side Hardened Top Layer: No Anti-Static: No Frame Construction: Standard Profile / Aluminum Front Filter Threads: Yes

You are shooting in overcast conditions and there is a blue color cast

Despite the slim profile the filter includes front filter threads so you can attach additional filters or your protective lens cap

but horrible for taking pictures

Hoya color conversion filters are manufactured in Japan using hand-selected silicates that are carefully smelted and blended to yield high-performance optical glass

Hoya Blue Intensifier Filter for Sky & Seascape Photos protection Filter Factor: 2 Glass Type:Description The Hoya Blue Field Intensifier filter enhances colors in the blue region of the spectrum without adversely affecting other colors. The Blue Field Intensifier filter is useful when: Improving brightness in seascapes In combination use with HD3 UV or HD3 Circular Polarizer to increase contrast and sharpness When a polarizing filter isnt effective because of the direction of the sun Specifications Filter Factor: 2. 5 Glass Type: Hoya Optical