Re: UV photography with Nikkon Enlarging lenses

[Jim Bisnett <jtbisnett@xxxxxxxxxxxxxxxx>]

Rolland,

     If you get this to work I would like to know. I have wanted to do
some UV photography, but the price of the special nikon lense is too much.

      Jim

Rolland Elliott wrote:

> This post is for everyone who's interested in UV photography!
>
> I've been doing some research about UV photography over the last
> couple of months, and recently got a true UV filter made by B+W.  The
> only problem is that I now need a lens that will pass UV light (most
> modern multicoated optics supress UV light substantially, and
> unfortunately, all of the lenses I own are modern and multicoated.)  I
> though I would have to buy some super old non coated Nikon lenses to
> use with my camera, but I heard that these older lenses usually are
> not corrected in the UV range, producing unsharp pictures. However,
> it looks like Nikon Enlarging lenses might be better than old uncoated
> lenses for UV photography see below:
>
> Here's some interesting information I picked up from a Nikon Catalog
> about their enlarging lenses:
>
> EL-Nikkor enlarging  lenses are corrected for chromatic aberration
> beyond the visible spectrum into near ultraviolet wavelengths --
> wavelengths to which photographic papers are particularly sensitive.
> Through the use of special optical glass and matching optical
> coatings, EL-Nikkor lenses are designed for ultraviolet transmission
> in the 350 to 450 nm range. This means EL-Nikkor enlarging lenses can
> be used for color separation in addition to all other enlarging
> applications. EL-Nikkor lenses are also front threaded to accept screw
> in accessories , and can be used for exceptional small-object
> photography when mounted on a bellows.
>
> These enlarging lenses don't have the spectral transmission of a true
> UV quarts lens, but then again they don't cost $3000 US dollars like
> Nikon's quartz lens.
>
> My only problem now is to figgure away to mount these enlarging lenses
> on my Nikon N90s camera.  I need some kind of adapter that goes from
> the Nikon F-mount to a 39mm thread that is deep enough to allow me to
> turn the lens in and out of the mount for focusing purposes.
>
> I'd appreciated any insight from those who might have  tried this.
>
> Sincerely,
>
> Rolland Elliott
>
> ==
> Rolland Elliott
> 25D Janet Circle
> Bridgeport, CT  06606
> (203) 371-8412
>
> _________________________________________________________
> DO YOU YAHOO!?
> Get your free @yahoo.com address at http://mail.yahoo.com
>
> *
> ****
> *******
> ******************************************************
> *  To remove yourself from this list, send:          *
> *         UNSUBSCRIBE INFRARED                       *
> *       to                                           *
> *         MAJORDOMO@xxxxx                            *
> *----------------------------------------------------*
> *   For the IR-FAQ, IR-Gallery and heaps of links:   *
> *  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
> ******************************************************

*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************