B+W 52mm Filter - Blue KB12 and Amber KB6

khw

Good used condition as shown. HK$80 for both.

vincecharus

唔識用，可否教下？

khw

Colour correction?

vincecharus

#80B (KB 12)
This dark blue filter acts as a color conversion filter by converting artificial light of color temperature 3400°K to daylight color film. Without it, strong yellow-orange color tones would occur.
The filter factor is approx. 2.

Amber KB 6
Shooting in tungsten lighting, use a KB6 filter (like an 80D I think). It's a half correction, from 4400K to 5500K.  It brings out the blues a bit and you only lose 1/2 a stop.