Ikelite digital SLR housings now feature 4 port locks
Starting November 1, 2009, Ikelite digital SLR housings will ship with 4 port locks and a 1/4-20 threaded mounting point for the attachment of a focus light, video light, or other accessory.
Ikelite notes that all ports are compatible with the new locks with the exception of the #5510.10 Superwide Port Body. Anyone who purchased a new Ikelite dSLR housing after October 1 will receive a complimentary upgrade. Older housings can be upgraded for $150 plus return shipping.
See Ikelite’s website for full details regarding upgrades and turnaround time.