Flat ports are recommended for standard, macro and telephoto lenses. Due to refraction, flat ports reduce the angle of coverage of a lens and magnify the image. This makes the flat port ideal when using standard, macro or zoom lenses to shoot small subjects.
This port is specially designed for use with the 105mm Macro f/2.8G ED-IF AF-S VR lens. Auto focus only.
The MSRP referenced is a suggested US market retail price. Actual sales prices are set exclusively by Authorized Ikelite Dealers.