I think the main concern with C5060 is about the ability to use wetmount wide angle lens. I have not followed up on this since I was not really looking for the C5060.
Someone with a C5060 should be able to tell you better. My impression is that you pretty much stuck with the Oly wide angle lens and ports for wide angle shot and it is not wetmount.
As Dee said, I forgot to mention that other options for C5050 is available (although more expensive) such as Ikelite housing but at around $600 which is what I have. A very nice housing but bulkier than the PT 015.
Brighter lens on C5050 is not really an issue, at least for me. I shoot most of my macro shots with F8 and F4-F5.6 for wide angle. I can't remember the last time I actually need F1.8 for anything.
Someone with a C5060 should be able to tell you better. My impression is that you pretty much stuck with the Oly wide angle lens and ports for wide angle shot and it is not wetmount.
As Dee said, I forgot to mention that other options for C5050 is available (although more expensive) such as Ikelite housing but at around $600 which is what I have. A very nice housing but bulkier than the PT 015.
Brighter lens on C5050 is not really an issue, at least for me. I shoot most of my macro shots with F8 and F4-F5.6 for wide angle. I can't remember the last time I actually need F1.8 for anything.