This is the impossible to find wide angle adapter ring for the Lee Foundation Kit - 82mm thread.
If you want to use grads with such popular wide angle lenses (with minimal vignetting) as:
Zeiss 21mm
Zeiss 18mm
Canon 16-35mm
you need this ring. Out of stock everywhere and backordered.
$90 PP+Shipped to CONUS
If you want to use grads with such popular wide angle lenses (with minimal vignetting) as:
Zeiss 21mm
Zeiss 18mm
Canon 16-35mm
you need this ring. Out of stock everywhere and backordered.
$90 PP+Shipped to CONUS