Glass Domes

[Mariozi]

Dear Sirs,

Is it true that S&S Optical Dome is made by Athena?
How does he compare in size with Athena's OPD-200V and OPD－F170V?
Why on the new compatibility chart this new Sea&Sea Optical Dome is not compatible with Nikkor AF-D 20mm/2.8?

Please...
Marcelo Mariozi

 

[SEA&SEA]

Hi Marcelo-
The optical dome port is manufactured in Japan by SEA&SEA, the glass itself may be similar to what Athena utilizes for it's own dome ports. The dimensions on our optical dome are 181 x 78mm, BK7 glass. If a dome is not recommended for a specific lens it is due to the fact that optical quality could not be verified by the engineers and simply that lens and port, in any available combination is not suitable.