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EF lens reverser

 
 
Paul Dalen
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      01-29-2004
Is it possible to reverse an EF lens? I mean, to install it backwards (on
purpose)?


 
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.
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      01-29-2004

"Paul Dalen" <> wrote in message
news:aleSb.10161$Q_4.7172@okepread03...
> Is it possible to reverse an EF lens? I mean, to install it backwards (on
> purpose)?
>
>

Yes it is, but there are better ways to get macro results with said Canon
cameras. I guess given the correct adapter you could even mount it backwards
accidently.


 
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PhotoMan
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      01-29-2004

"Paul Dalen" <> wrote in message
news:aleSb.10161$Q_4.7172@okepread03...
> Is it possible to reverse an EF lens? I mean, to install it backwards (on
> purpose)


HP Photo in New York has the reversing adapters. Note: you will have no AF
or aperture control.
Joe Arnold


 
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Nils Rostedt
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      01-29-2004

"Paul Dalen" wrote
> Is it possible to reverse an EF lens? I mean, to install it backwards (on
> purpose)?
>


Yes, but if you want the electrical interface to work for stopping down the
aperture you need an adapter like the one Novoflex makes :
http://www.novoflex.de/english/html/...ccessories.htm

It would probably be feasible for the average do-it-yourself guy to make
such an adapter from an EF extension ring cut in two pieces, and a filter
adapter ring glued to the piece that mounts on the body. I wonder if anyone
has made such an accessory?

/N

 
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John Bean
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      01-29-2004
On Thu, 29 Jan 2004 14:49:16 -0600, Paul Dalen wrote:

> Is it possible to reverse an EF lens? I mean, to install it backwards (on
> purpose)?


Yes. Novoflex do an EF lens reversal adaptor which retains auto operation.
It's not cheap.

--
John Bean

I don't read books, but I have friends who do (George W. Bush)
 
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dslr
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      01-29-2004
Paul Dalen wrote:
>
> Is it possible to reverse an EF lens? I mean, to install it backwards (on
> purpose)?


Yes, you need a reversing adapter - one such (may be the only one, my UK
dealer's catalogue claims it's unique) is made by Novoflex and comprises
one adapter that fits on the front of the camera (to which the front of
the lens is screwed) and a second fitted to the back of the lens (which
is now at the ront) to provide the EF connections. The two parts are
cable linked.
In the UK it retails for around £190, so it's probably around $200-250.
Novoflex product page is at;
http://www.novoflex.de/english/html/products.htm

--
regards,
dslr
 
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Randy Rhine
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      01-29-2004
Does reversing give more magnification than using extension tubes? I
suppose it depends on the lense combination. probably some formula to
determine the magnification factor. But, with extension tubes, you get
AF and aperture control. I have the Kenko ext tubes...and they get me as
close as I've wanted so far

rr



PhotoMan wrote:
> "Paul Dalen" <> wrote in message
> news:aleSb.10161$Q_4.7172@okepread03...
>
>>Is it possible to reverse an EF lens? I mean, to install it backwards (on
>>purpose)

>
>
> HP Photo in New York has the reversing adapters. Note: you will have no AF
> or aperture control.
> Joe Arnold
>
>


 
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Bob Salomon
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      01-29-2004
In article <aleSb.10161$Q_4.7172@okepread03>,
"Paul Dalen" <> wrote:

> Is it possible to reverse an EF lens? I mean, to install it backwards (on
> purpose)?
>
>


Novoflex makes the EOS RETRO reversing adapter for the Canon EOS series.

--
To reply no_ HPMarketing Corp.
 
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Nils Rostedt
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      01-29-2004
Yes. The 50/1.8 when reversed, covers about 35mm horizontally, or
approximately the same as when mounted on a 36mm extension ring. As an
additional benefit, the lens-to-subject distance is larger. And extension
rings can of course still be used for more magnification.
/N


"Randy Rhine" <> wrote in message
news:aKeSb.139392$sv6.755735@attbi_s52...
> Does reversing give more magnification than using extension tubes? I
> suppose it depends on the lense combination. probably some formula to
> determine the magnification factor. But, with extension tubes, you get
> AF and aperture control. I have the Kenko ext tubes...and they get me as
> close as I've wanted so far
>
> rr
>
>
>
> PhotoMan wrote:
> > "Paul Dalen" <> wrote in message
> > news:aleSb.10161$Q_4.7172@okepread03...
> >
> >>Is it possible to reverse an EF lens? I mean, to install it backwards

(on
> >>purpose)

> >
> >
> > HP Photo in New York has the reversing adapters. Note: you will have no

AF
> > or aperture control.
> > Joe Arnold
> >
> >

>


 
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Bob Salomon
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      01-29-2004
In article <bvbtpd$qksje$>,
"Nils Rostedt" <> wrote:

> Yes. The 50/1.8 when reversed, covers about 35mm horizontally, or
> approximately the same as when mounted on a 36mm extension ring. As an
> additional benefit, the lens-to-subject distance is larger. And extension
> rings can of course still be used for more magnification.
> /N
>
>
> "Randy Rhine" <> wrote in message
> news:aKeSb.139392$sv6.755735@attbi_s52...
> > Does reversing give more magnification than using extension tubes? I
> > suppose it depends on the lense combination. probably some formula to
> > determine the magnification factor. But, with extension tubes, you get
> > AF and aperture control. I have the Kenko ext tubes...and they get me as
> > close as I've wanted so far
> >
> > rr
> >
> >
> >
> > PhotoMan wrote:
> > > "Paul Dalen" <> wrote in message
> > > news:aleSb.10161$Q_4.7172@okepread03...
> > >
> > >>Is it possible to reverse an EF lens? I mean, to install it backwards

> (on
> > >>purpose)
> > >
> > >
> > > HP Photo in New York has the reversing adapters. Note: you will have no

> AF
> > > or aperture control.
> > > Joe Arnold
> > >
> > >

> >

>


So can a bellows. And that allows even greater mag.

--
To reply no_ HPMarketing Corp.
 
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