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Author Topic: Lenses for Elmo ST180
Winbert Hutahaean
Film God

Posts: 5468
From: Nouméa, New Caledonia
Registered: Jun 2003


 - posted January 06, 2010 03:48 PM      Profile for Winbert Hutahaean   Email Winbert Hutahaean   Send New Private Message       Edit/Delete Post 
quote:
Put it in one way in the lens and it expands the picture...
Gary, did you say it works like a magnifier?

It is new for me.

rgds,

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Winbert

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Gary Crawford
Jedi Master Film Handler

Posts: 979
From: Manassas, VA. USA
Registered: Jun 2003


 - posted January 08, 2010 10:16 AM      Profile for Gary Crawford   Email Gary Crawford   Send New Private Message       Edit/Delete Post 
it either magnifies or DEmagnifies , depending on which way it goes in front of the prime lens. It's called a bifocal converter. made by Kodak. Ebay sometimes has one for sale..or someone on the 16mm forum might have one to sell.

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Winbert Hutahaean
Film God

Posts: 5468
From: Nouméa, New Caledonia
Registered: Jun 2003


 - posted January 08, 2010 06:58 PM      Profile for Winbert Hutahaean   Email Winbert Hutahaean   Send New Private Message       Edit/Delete Post 
Gary...interesting!

What is the negative side of using this bifocal converter apart from dimmer light (which is normal and will happen to with short throw lens).

rgds,

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Winbert

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Robert Oakley
Film Handler

Posts: 46
From: Binghamton, NY
Registered: Dec 2003


 - posted February 07, 2010 05:07 AM      Profile for Robert Oakley   Email Robert Oakley   Send New Private Message       Edit/Delete Post 
I have an Elmo 1.1 lens I can sell to you if you still need one.

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Martin Jones
Phenomenal Film Handler

Posts: 1269
From: Thetford , Norfolk,England
Registered: May 2008


 - posted February 07, 2010 05:43 AM      Profile for Martin Jones   Email Martin Jones   Send New Private Message       Edit/Delete Post 
"Bifocal converter" is neither "rocket science" or anything special. Practically every camcorder manufacturer and photographic accessory manufacturer offers them, but calls them "wide angle" or "telephoto" converters.
They are simple two element Galilean telescopes; one way round they increase, the other they reduce, the focal length of the lens they are attached to, and are defined by their Factor, say 1.5X or 2X etc.
Martin

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Retired TV Service Engineer
Ongoing interest in Telecine....

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Christian Bjorgen
Jedi Master Film Handler

Posts: 996
From: Kvinnherad, Norway
Registered: Oct 2009


 - posted February 07, 2010 07:31 AM      Profile for Christian Bjorgen   Author's Homepage   Email Christian Bjorgen   Send New Private Message       Edit/Delete Post 
Robert, I have sent you a mail [Smile]

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Well who’s on first? Yeah. Go ahead and tell me. Who. The guy on first. Who. The guy playin’ first base. Who. The guy on first. Who is on first! What are you askin’ me for? I’m askin’ you!

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