Commercial Ektar filter sizes?

[Bill_1856]

What series filter sizes for the 10", 12", and 14" Commercial Ektars?
Thank you.

[grahamcase]

My 14" takes 72mm filters. That's all I got!

[Keith Pitman]

My old Kodak book indicates Series VIII for the 10 and 12 inch and Series IX for the 14 inch.

[Bill_1856]

Thanks, Keith.
Does it happen to mention the outer diameter for fitting the slip-on adapter?

[Kerry L. Thalmann]

Thanks, Keith.
Does it happen to mention the outer diameter for fitting the slip-on adapter?

According to "Kodak Products for the Professional", January, 1961:

8 1/2" Commercial Ektar Filter Ring Adapter - 1 3/4" - Series 7

10" Commercial Ektar Filter Ring Adapter - 2 1/8"" - Series 8

12" Commercial Ektar Filter Ring Adapter - 2 1/2" - Series 8

14" Commercial Ektar Filter Ring Adapter - No. 91 - Series 9

I confirmed the first three by measuring my lenses. I wasn't sure what No. 91 was, so I measured my 14" Commercial Ektar and got 2 15/16" (2.9375").

Kerry

[Bill_1856]

Thanks, Kerry.

[Douglas Henderson]

Kerry,

Thank you for your post. I just picked up some series 7 push on filters for a Ektar 210mm. I'd been wondering how to get a filter on this lens. Also found some modern filter adapters that screw into the series 7 that mount modern filter sizes.

Doug

[Philippe Grunchec]

My (1958) 14" takes 72mm filters.

[BrianShaw]

As Kerry mentioned the 12 inch takes a 2.5 inch (63.5 mm) adapter. Nice thing about that is that 67mm filters screw into that adapter.