on 10/04/2005 21:22, Wayne Culberson at waynecul@xxxxxxxxxxxxxxx, wrote:
> 81a and 81b in 43.5mm and 49mm
Just picked up at the flea-market a BW filter marked:
'B+W 49 ES KR 1,5 1,1x'
hoping it would be equivalent to a 81a filter. Now it looks more lika e 81b.
Could anybody help me out of my ignorance?
I'm not planning a trip to Bolivia right now, but who knows...
Fernando.
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