Re: [Leica] Novoflex -- Canon XL1/Leica R adapter

[ralph fuerbringer <rof@mac.com>]

jem kime mentions the cooke amatol 50f2 which i have  on  bell and howel
fotons.  i believe they called their normal 100m likewise but they also had
a unigue l00mm that staggers the mind.  based on technology they developed
for motion pictures to surpass even the famous depth of focus shots in
citizen kane,they labelled this lens deep focus. twenty years ago i compared
sharpness with the regular 100 and they were equal at focus plane. the deep
focus had  much greater depth of field front and back listed right on the
footage scales.  my question is does anybody know how they cheated the rigid
laws of optics around 1950? phillip griffths-jones of magnum thinks they
incorporated what later became teleextenders. though a 2x teleexter does
retain the depth of field of the original lens(a 4 f-stop gain) there is a
4x penalty in speed and these were f2 (t2.2 for actual transmission another
thc first) does any one have definitive knowledge or a better idea of this
optical shell game? did deep focus ever appear on any other
camera or why not? anything  on  foton please use rof@mac.com

> From: Jem Kime <jem.kime@cwcom.net>
> Reply-To: leica-users@mejac.palo-alto.ca.us
> Date: Sun, 9 Jul 2000 19:46:24 +0100
> To: "'leica-users@mejac.palo-alto.ca.us'"<leica-users@mejac.palo-alto.ca.us>
> Subject: RE: [Leica] Novoflex -- Canon XL1/Leica R adapter
> 
> Andre,
> I have dealt with a company that specialises in adapting Leica lenses for
> just these types of professional cine cameras.
> They are called Van Diemen and have a machine shop in Leicestershire. They
> bought up the old stock of spares from Taylor Hobson/Cooke when their
> parent company, Rank, sold off surplus parts of the company in the late
> 1970s. their reputation is such that they had some Korean visitors the
> other day when I was trying to contact their MD, Mr Christopher Smith.
> They have repaired an old (1949) LTM Cooke Amotal 50/2 for me, though sadly
> they were unable to find original spares stock to use.
> They have a web site:
> www.VanDiemen-ltd.com
> and here is their address:
> 41-43 High St.,
> Earl Shilton,
> Leicestershire,
> LE9 7DH
> England
> Their 2 e-mail addresses I have do not seem to have worked for me so I'll
> refrain from passing them on.
> Tel: 44 1455 847722
> Fax: 44 1455 841224
> 
> regards,
> Jem
> 
> 
> -----Original Message-----
> From: Andre Jean Quintal [SMTP:megamax@abacom.com]
> 
> I wonder if there is a way to use Leica lenses on Arriflex
> or Panavision cine-cameras, out of curiosity.
> 
> Andre Jean Quintal
> 
> 
> 
>