Seeking help on Hasselblad UV filter code 41680 or 51680

Hi,

Looking for expert advice on the Hasselblad UV-SKY filter for my CF B60 lens recently purchased. I noticed there are two product code both compatible with B60 lens, they are 41680 and 51680. Any differences between these 2 filters? I only need this for lens protection but nice to know if Hasselblad produced two versions for different reasons. Thanks in advance for helping.

Stephen

Well,
The 1985 Hasselblad catalog lists the 51608 filter as Haze 1xHZ-0, and notes this as a filter designation UV-SKY.
But the 1989 catalog lists this as the 41608 filter.
So you can infer that the 41608 filter is the newer version of the filter.

Good to know so I guess the improved version is 41608 although I am unable see the difference from the photos