Wearily, Takehiko Ueda opined on 02/25/2001 08:59:

>Skylight: 49, 52, 58, 67, 77mm
>UV (UltraViolet)(L39): 49, 52, 58, 67, 77mm
>Y2 (Yellow)(Y48): 49, 52, 58, 67, 77mm
>O2 (Orange)(O56): 49, 52, 58, 67, 77mm
>R2 (Red)(R60): 49, 52, 58, 67, 77mm
>PL (PoLarizing)(not described as SMC): 49, 52, 58, 67, 77mm
>PF (I don't know what it is): 77, 112, 145, 150mm

PF "(Flourescent)": 77, 112, 145, 150mm

A brownish to magentaish filter to correct for flourescent lighting's 
ugly green cast.

But why in only the larger sizes?




JoMac, Pentaxian
  "Quadraphonic, Beta, Macintosh, Pentax"
    "Principle over Practical, Every Time."
      "Always a different path, always finite."
        "I may die destitute and alone, but I'll find 
           solace in that my life's choices were always the best!"

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