82mm 10-stop ND

[TheGaffer]

As far as I can establish, an 82mm diameter, 10-stop ND filter to fit the 16-35 and TSE 24 is not available from any manufacturer, anywhere in the world, for any price.

Is Lee the only option or have I missed something?

Andrew

[Canon Bob]

Heliopan make them although they need to be ordered direct from them. They're about 140 Euros over here but may get more expensive the further they travel.
Here's their website http://www.heliopan.de/index.shtml The German version is much more detailed but there's an English .pdf with the basics.

Bob

[ben_r_]

I was planning on doing the Lee system. The 82mm size is tougher to find stuff for, with a filter system you can use the same mount for more than just the 10 stop ND AND you can get adapter rings to use it on all your smaller filter size lenses as well should you ever want to!

[Electric Shepherd]

Alternatively, cheat with some welding glass: http://photography-on-the.net/forum/showthread.php?t=767152