Ah ha! I used to work in St Giles Court when I was involved in the
Eurofighter project (I was cockpit displays, pilot clothing and
protective systems - against NBC threats) and that is not far from
where R G Lewis used to be. I bought a used 200/4 and 28/2.8 from
him, tempted into the shop on my way to the Tube station at
Holborn... I paid too much for both of them, but the pleasure was
great nonetheless :>).
Chris
At 13:54 +0000 7/9/02, CyberSimian wrote:
----- Original Message -----
From: "Julian Davies" <julian_davies@xxxxxxxxxxxxxx>
Sent: Saturday, September 07, 2002 10:54 AM
Subject: Re: [OM] Tamron vs. Zuiko
At one time a UK retailer (can't
remember which) used to MTF test every Tamron before sale, and the price
reflected the result...
Are you thinking of R.G.Lewis of Holborn in London? Back in the 1970's they
used to test ALL lenses that they sold, and their prices reflected that
(about 10% more than other shops, if I remember correctly). I bought my
first two Zuikos from them, and I still have one of them (the 75-150 zoom).
Initially R.G.Lewis tested lenses using film and test targets, and assessing
the result in terms of "lines per millimetre" (or possibly "line-pairs per
millimetre"), and that is how my lenses were tested (I still have the test
negatives for the 75-150 zoom). Later they obtained an MTF machine and used
that to test lenses. Later still they discontinued this practice.
--
<|_:-)_|>
C M I Barker
Cambridgeshire, Great Britain.
?
+44 (0)7092 251126
mailto:imagopus@xxxxxxxxxxxxxxxx
http://www.threeshoes.co.uk
... a nascent photo library.
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