Mamiya Auto-Ext Ring No.2 lens mount_C Mount but there is no electrical

but there is no electrical or mechanical connection to permit autofocus

A built in close-up filter lets you get as close as 2 feet from your subject

This Watson Model 100 Bulk Film loader takes 100 foot bulk reels of 35mm film and lets you fill your own reusable cassettes (three are included

and accurate shutter & metering function

Mamiya Auto-Ext Ring No.2 lens mount_C Mount but there is no electricalThe Mamiya Auto Ext Ring No. 2 is a 25mm extension tube for Mamiya 645 cameras and lenses. It provides extra macro capability without any loss of image quality (not because it's extra fancy, just because it's a tube full of air).