[LRflex] Re: Macro - Elpro or Tube?
- From: Douglas Sharp <douglas.sharp@xxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Sun, 25 Sep 2005 18:12:42 +0200
Interesting,
I have a rather clever , and extremely heavy, Beroflex 3,5-4,3/35-100mm
zoom, in C/Y, mount which has a built-in close focus function.
By turning a ring you can shift the whole optical construction further
away from the film plane.
Haven't tried it on the 20D yet: To be quite honest the lens has been
collecting dust on a shelf for the last 10 years or so, it was always
much too heavy to lug around, the first Contax RTS wasn't particularly
light either, still looks good though.
Douglas
David Young wrote:
>G'mornin' Douglas, Art, et al...
>
>Close up lenses have their place. Personally, though I don't do a lot of=
> close up work, the results I've had with the Nikon 6T and 80~200/4 Variol,=
> though very good, are not quite up to a prime lens with tubes. That being=
> said, it has the advantage of small size, low cost and light weight -=
> ideal for the traveling photographer.
>
>Recently I acquired the ELPRO IVa and IVb pair of Leitz close-ups. These=
> are specifically formulated for the first version 50 Summicron and with=
> this lens they yield superb results.
>
>Close-up lenses have a bad reputation... and I believe that comes from the=
> vast number of innexpensive sets (usually a +1, +2 and +3 diopter lenses=
> in a small case) comprised of simple, single element lenses.
>
>However, the small number of two element achromats (Minolta, Nikon,=
> Leitz/Leica and a few from Olympus) are of very high quailty.
>
>I paid CAD$20 for my Nikon 6T and US$20 each for the two Elpros. I am so=
> pleased with them for casual use that I've just sold my extension tubes!
>
>Moreover; lenses, such as the 1st version 90 Summicron, that don't work=
> well at close focus do better with close-upo lenses than tubes.
>
>Finally, close ups are mandatory with zooms. The distance from the rear=
> lens element to the film/sensor plane is critical and cannot be varied.=
> Depending on the lens, results will vary from poor to terrible, and the=
> lens will change from zoom to variable focal length design.
>
>Sorry, can't help you with the Exakta/Topcon mount.
>
>Cheers!
>
>
>David Young,
>Logan Lake, BC
>CANADA.
>
>Personal Web-site at: http://www3.telus.net/~telyt
>Leica Reflex Forum web-page: http://www3.telus.net/~telyt/lrflex.htm
>
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