ND Grads how many stops

[Snapper73]

Can someone clear something up and confirm how many stops these ND filters have

0.6
0.9
1.2

Thanks

 

[puddleduck]

2,3,4

 

[Snapper73]

2,3,4

Thought so, Thanks.

Also if anyone has a link to a thread talking about B+W 10 stop ND grad 77mm on ebay from a german company for about £69