I recently purchased the 8" dome port and Canon 10-22mm. The clamp I have from the #5503 is a bit snug on the lens but works. I'm curious what the difference is with the #5509.28 special zoom and clamp set (i.e., is it just a bit larger?).
Also, the chart on the Ikelite site doesn't say that the 8" port works with the Sigma 15mm FE, although I believe that it does, per previous threads on this site. Am I correct?
And one last question: How are some of you handling the extra weight needed on the housing due to the air volume under the dome (as far as placement and attachment)?
Okay I lied ... here's the last question: Are most using a shade on this port?
Thanks.