[rollei_list] Re: OT:Kodak Pocket 1A Autographic
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Mon, 19 Jul 2010 13:05:24 -0700
----- Original Message -----
From: "Chris Burck" <chris.burck@xxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Sunday, July 18, 2010 11:35 PM
Subject: [rollei_list] Re: OT:Kodak Pocket 1A Autographic
richard, i'm pretty sure kodak's dialytes were always
f/7.7 lenses.
but i'm not aware they offered them in smaller than large
format focal
lengths. jerry, your example just might be one though it
seems more
likely that it's a triplet. allan, your lens is almost
certainly a
triplet.
Kodak made Dialyte lenses in several speeds. The 70
Series Kodak Anastigmats, which were mostly f/4.5 lenses
were dialytes while the 30 series KAs were Tessars. The
No.70 KA was an 8", f/7.7 lens of very good quality which
survived as an Ektar when coated but other Series 70 KAs
were faster.
If the lens says "anastigmat" on it its not a simple
meniscus or an R-R. Likely a Triplet although the Dialyte
may have been cheaper to make due to the precision of
spacing required by Triplets. The cheap shutter mentioned
suggests a cheap lens.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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