yes, but the E-300 has a quiet small optical viewfinder image and the housing finder shrinks it even more I guess. Don't know if Olympus has enlarged the E-330 finder. Nothing wrong here. But I would have preferred Olympus improving their optical housing finder. I mean, Olympus has "some" experience in optics, they should be able to do it In addition LCD preview - that would be great.
I am sure I will aggravate the C & N faithful by saying this but the diffrence in the viewfinders is minimal. I have owned Canon and Nikon 35 mm cameras in quality housings like the Nik 8008 and Canon AE and can not see a diffrence from the E-300. I also own a like new Canon 10D with 50 mmm F1.4, 28-135 F 3.5-5.6 IS USM and EF 17-40 F4 L (all like new in the box for sale at firstname.lastname@example.org) and can't see much of a diffrence other than it is harder to see into the corners of the 10D due the the diffrence in3:2 over 4:3.
I have also used housings with the Subal/Sealux grand view and Seacam 45 & 90 viewfinders. These are great improvements over most housing finders, however the grand view cost more than my housing and the Seacam cost more than the E-300 and housing. This is I am sure money well spent, but not for a sub $600.00 camera body. I might also add that my Nikonos RS has a viewfinder better than any of these, so I am quite spoilled.
As you say Olympus is a superb lens maker, that is what drew me to the E-system to begin with. They indeed need to address the issue of enlargement of the viewfinder system for the small format chip, but I think this is a back burner issue compaired to others they have.
I am sure that we all have issues with each of our camera systems and when Olympus makes the E-1 replacement with a 10+ MP senser I may be willing to spend the money for the "grand view" and will expect a better viewfinder. Until then I have taken over 20,000 images above water with the E-1 without having to clean the sensor once.
Seems like with the largest R & D budget of all the camera manufactures Canon (and/or Nikon) should have had an answer for dust by now, an issue of minimal diffrence as well.
Regarding the bulkhead connector for the Olympus PT-E01/E02 housingit can be found at Mike-dive.de