Hoya C12 Cooling Filter – 80A Color Conversion for Tungsten Light macro Installation is a breeze –

Installation is a breeze – simply attach the clip over your smartphone's camera lens and firmly secure it in place

You are using daylight-balanced film (5500°K) and the light source is 3200°K

The Hoya W2 filter is helpful when:

The Hoya 81B filter is helpful when:

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

Hoya C12 Cooling Filter – 80A Color Conversion for Tungsten Light macro Installation is a breeze –Description The C12 color conversion filter allows you to match the white balance of 3200K tungsten balanced (warm) ambient light sources entering the lens to match Daylight balanced 5500K films. C12 filters cool the light source by 2200K ( 120 mired shift) by adding a very dark blue to the overall exposure. The Hoya C12 filter is helpful when: You are using daylight balanced film and the light source is very warm and you want to to record accurate