Can't match the mainframes (once a week use of a PDP-11 was all I can claim,
and only 30 years ago), but I can observe that E-5 body is identical to the
E-3, so surely the 7mm tube will be needed as on the E-3.
Also, many months ago, you asked me to confirm that the original 20/3.5 has
no click stops. I have the lens before me, and the diaphragm is indeed fully
manual, continuously variable between f/3.5 and f/16, no clicks at all.
Piers
-----Original Message-----
From: Alan Wood [mailto:alanmwood@xxxxxxxxxxx]
Sent: 19 January 2011 10:02
To: Olympus Camera Discussion
Subject: Re: [OM] OT, was Auto Bellows on Olympus and Canon digital SLRs
Chris Barker wrote
> I was quite interested to note from your website that you and I were
>working
> on IBM mainframes at around the same time, in London. I was at Morgan
> Guaranty on a 360 (or 370) 135.
Chris
It is hard to believe that was 40 years ago. We had some System 360
mainframes, with rows of huge tape drives and disk drives and a few massive
printers. I had to feed in trays of punched cards, fetch the tapes and
disks from the library and mount them, and keep the printers fed with boxes
of continuous stationery. We worked shifts because the computers had to be
kept running 24 hours a day in order to cover their costs. Most
companies did not have their own computers in those days, so we had lots of
important customers, including the Treasury, British Petroleum and Allders
(a chain of department stores).
Alan Wood
http://www.alanwood.net (Unicode, special characters, pesticide names)
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