«

on this page
http://www.bhphotovideo.com/c/buy/Fo...3/N/4288586952

The first listed item is

122mm 040 Yellow-Orange (16) Glass Filter

The 122mm is obvious, what do the numbers "040" and "(16)" mean?

I'm guessing that the (16) refers to the old Wratten filter number.
anyone know?

"charles" <> wrote in message
news:...
> on this page
> http://www.bhphotovideo.com/c/buy/Fo...3/N/4288586952
>
> The first listed item is
>
> 122mm 040 Yellow-Orange (16) Glass Filter
>
> The 122mm is obvious, what do the numbers "040" and "(16)" mean?
>
> I'm guessing that the (16) refers to the old Wratten filter number.
> anyone know?
>

You can ask B&H, right on their website.

--
Peter

In article <4c3db7c9$0$5546$>,
"Peter" <> wrote:

> "charles" <> wrote in message
> news:...
> > on this page
> > http://www.bhphotovideo.com/c/buy/Fo...113/N/42885869
> > 52
> >
> > The first listed item is
> >
> > 122mm 040 Yellow-Orange (16) Glass Filter
> >
> > The 122mm is obvious, what do the numbers "040" and "(16)" mean?
> >
> > I'm guessing that the (16) refers to the old Wratten filter number.
> > anyone know?
> >
>
> You can ask B&H, right on their website.

16 is the Kodak Wratten number; 040 is B+W's number for the same color.