[Leica] Need Knowledge; Use of Dark Yellow Filter w/B&W Film

[topoxforddoc at btinternet.com (Charlie Chan)]

Bob,

Just shoot TTL. The 3x refers to 3 stops less light - important to  
know if you are hand metering.

Charlie

On 23 Jul 2007, at 19:25, Bob Shaw wrote:

> My local Leica dealer (Glazer's in Seattle) is dumping their B+W  
> Filter inventory (digital marches on...) so I pawed through three  
> large boxes and came up with a B+W ProLine 67mm Dark Yellow for my  
> R-Vario Elmarit 28-90 Asph.  I couldn't find a 77 for my 70-180 but  
> in retrospect, I decided I'd be less likely to use it on that lens;  
> the 28-90 is my "on camera" lens most of the time.  I have a  
> Heliopan Circular Polarizer for both lenses which I use a lot.
>
> Back to Dark Yellow:
>
> According to ilford's website, "A typical yellow filter will have a  
> filter factor of 2; the manufacturer will supply the exact factor  
> with the filter. Most cameras with TTL metering will correct  
> automatically for the filter factor but check the camera  
> instruction book".
>
> OK.  i get it.
>
> But on the box, the label states "Dark Yellow 3X Coated".
>
> My question is:  even though the R8 and R9 read through the lens,  
> do I want to open up a stop or two, or go with the internal meter  
> reading and just shoot away?
>
> Thanks for any unfiltered light you can shed on this.
>
> Regards,
>
>
> Bob
>
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