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RB Series B 2x3 Lens options

 
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slowlight_us



Joined: 21 Sep 2021
Posts: 4
Location: Earth

PostPosted: Fri Oct 08, 2021 3:01 pm    Post subject: RB Series B 2x3 Lens options Reply with quote

Hi,

I have an RB Series B 2x3 with a Kodak Anastigmat F4.5, 5 1/2 in lens.

Does anybody know what other lenses were available back in the days -- and also what is the threading of the lens mount?

I assume KODAK ANASTIGMAT 6 3/8 inches (162mm) F4.5 would not fit, right?
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45PSS



Joined: 28 Sep 2001
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Location: Mid Peninsula, Ca.

PostPosted: Fri Oct 08, 2021 6:29 pm    Post subject: Reply with quote

See pages 8 & 9 of this 1923 catalog:
http://piercevaubel.com/cam/catalogs/1923graflexlp324.htm
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slowlight_us



Joined: 21 Sep 2021
Posts: 4
Location: Earth

PostPosted: Fri Oct 08, 2021 8:37 pm    Post subject: Reply with quote

Thanks for the link!!

So it seems they never thought about interchangeable lenses? I thought I saw somewhere a discussion of some options for different lens options for the 2x3 SLR. But I cannot find it anymore -- so it may be it never existed
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45PSS



Joined: 28 Sep 2001
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PostPosted: Sat Oct 09, 2021 8:59 pm    Post subject: Reply with quote

I measured the mount threads on my 1948 2x3 Series B 127mm f4.5 Ektar.
It is 1 13/32 x 24 tpi.
The camera serial number is on the view hood door behind the view hood if you want to date it.
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slowlight_us



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PostPosted: Sun Oct 10, 2021 7:30 pm    Post subject: Reply with quote

Thank you so much!!

The serial number is 459347. Any idea how to date it?
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45PSS



Joined: 28 Sep 2001
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Location: Mid Peninsula, Ca.

PostPosted: Mon Oct 11, 2021 2:18 am    Post subject: Reply with quote

Near the end of a large order listed 1/1948 with the next listing 1/1949
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slowlight_us



Joined: 21 Sep 2021
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PostPosted: Mon Oct 11, 2021 11:32 am    Post subject: Reply with quote

absolutely awesome. Thank you so much. I always want to know my camera's manufacturing age. I have, for example, a Rolleiflex 2.8F of my own age (as closely as you can date Rolleis), and a Kiev 60 built the same year when Chernobyl exploded just 60 miles south
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