HOWSHOT 140mm Optical Fisheye Port for Sea&Sea / Isotta
Dome: Optical glass BK7 (AR anti-reflection coating on the inner surface)
Body: Corrosion-resistant aluminum alloy (Hard anodized)
Shade: Corrosion-resistant aluminum alloy (Hard anodized)
Depth rating: 100m
Compatible Lenses:
Nikon AF-S Fisheye NIKKOR 8-15mm (w/ Extension ring 20)
Nikon AF DX Fisheye-Nikkor 10.5mm f/2.8G ED
Nikon AF Fisheye 16mm f/2.8D
Canon EF 8-15mm f/4L Fisheye USM (w/ Extension ring 30)
Canon EF 15mm f/2.8 Fisheye
Tokina 10-17mm f/3.5-4.5 Fisheye (w/ Extension ring 20)
Sigma 15mm F2.8 EX DG Diagonal Fisheye