Photography in Paradise

peeking from behind the sensor

Today was the testing of the Tokina 12-24mm lens on the Canon 7D in the Nauticam housing using the Nexus M5 port adapter and the Nexus FP160 glass dome. The calculated nodal point for the Tokina 12-24 is 25mm or One inch out front of the housing with the adapter installed.tokina nodal point

This shows the dome set up with the proper extension rings in place.dome raduis

12mm This is the 12mmzoom setting showing a little barrel distortion but the corners are sharp.

This isthe 24mm zoom setting showing marginal pin cushing but still sharp in the corners. These aberations are due to the internal nodal point floating when the lens is zoomed.close-up

This is the close focus capability for the 12-24 Tokina and this port set up . Close focus is lens than 2 inches from thedome front.

wide setting Wide 12mm zoom setting at f8.0