Cokin BPW-400A or BPW700A what's the difference

[kennysarmy]

Can anyone explain the differences here between :

http://www.bristolcameras.co.uk/p-cokin-p-series-wide-angle-slim-holder-p299.htm

&

http://www.warehouseexpress.com/product/default.aspx?sku=1000765

and which is better suited to use with a Sigma 10-20mm if I were to use 85mm Hitech filters?

Many thanks.
Kenny

 

[Canon Bob]

It looks like the Bristol Cameras website has got it mixed up. The BPW400 is the standard holder for three filters and the 700A is the single holder for wide angle lenses. Your 10-20 is likely to vignette at the wide end and may only be acceptable for the tele end of the range.

Bob

 

[kennysarmy]

Many thanks...