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bglick
20-Jan-2007, 21:48
I am trying to go from 6x7 slides to 35mm film. I assume a good darkroom lens which is designed for two flat field would be best. Any reccomendations?

andy bessette
20-Jan-2007, 22:48
I am trying to go from 6x7 slides to 35mm film. I assume a good darkroom lens which is designed for two flat field would be best. Any reccomendations?

Couldn't this be done simply using a 35mm camera and lens?

best, andy

THERE'S MORE TO OPTICS THAN MEETS THE EYE

Dan Fromm
21-Jan-2007, 07:02
Bill, I'm astonished by your suggestion. Given your obsession with the very best, your idea that any old "good darkroom lens which is designed for two flat field would be best" is shocking.

You want an Apo-El Nikkor or an S-Ortho Planar or a Printing Nikkor or maybe an Apo Rodagon D. Nothing less will do for a perfectionist like you. Don't settle for any old enlarging lens, you will be disappointed.

naturephoto1
21-Jan-2007, 07:12
Hi Bill,

As Dan suggested, the Rodenstock Apo Rodagon D lenses would be very good. The Rodenstock 75mm Apo Rodagon Ds (f4 or f4.5- 1X and 2X) can be found relatively inexpensively on eBay. They are duping lenses of very high quality.

Rich

Dr Klaus Schmitt
21-Jan-2007, 12:51
Gents, Bill,

my tests have proven and I have some replies from clients of mine doing exactly that, that the Rodagon-D's does not even come close to the S-Planar 4/60mm which is beaten "hands down" by the Apo-EL Nikkor 105mm and especially the S-Orthoplanar 50mm + 60mm and of course the S-Ortho 105mm (so I second Dan here). A less expensive alternative, still better than the Rodagon would be the S-Planar 74mm (all those lenses mentioned are listed on my site Special Lens Section (http://www.macrolenses.de/objektive_sl.php?lang) or Macro Lens Section (http://www.macrolenses.de/objektive.php?lang). Another alternative, not cheap unfortunately, would be the Printing Nikkors.

So you would need a 1:2 reduction actually. The S-Planar 4/74mm (http://www.macrolenses.de/ml_detail.php?ObjektiveNr=76), although optimized for 1:1, does quite well at 1:2 still and has an image diameter of 80mm.

The Zeiss S-Ortho 60mm is optimized for 1:30...1:10 so would not be optimal, negative size is 32x45mm so would fit the 35mm film nicely. The 50mm version is for 1:30...1:5 (as is the S-Planar 4/60mm) so would come closer, yet not perfect. The 105mm is for 70mm film, so that would be a waste for that application. I have an unknown Zeiss 4/63mm Microdukumentation lens (http://www.macrolenses.de/ml_detail.php?ObjektiveNr=236) here, which is optimized for 1:2, so this might also be a nice candidate.

The Apo-EL Nikkor is for 1:20...1:5 and also has 80mm film diameter, also not optimal. The Printing Nikkor datasheet clearly shows, that the 95mm lens would be especially for the 1:2 reduction, but the max. image diameter is 64mm only, so it would not fit the 6x7 format. The 105mm is optimized for 1:1, but only has 60mm image size, so also this is no option. The discontinued 150mm lens would be right, since it is optimized for 1:2...2:1. All the Printing Nikkors were wade for exactly this purpose, highest resolution copy between film formats.

I have several of the mentioned ones here, in case of urgent need.

Cheers, Klaus

jughes
20-May-2007, 06:23
I'm selling a S-planar f4 60mm actually on e-bay :
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=140119326356
You can contact me on jhb1@free.fr
thanks

Dr Klaus Schmitt
21-May-2007, 13:51
I'm selling a S-planar f4 60mm actually on e-bay :
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=140119326356
You can contact me on jhb1@free.fr
thanks

What a nice seller:

- quoted my site www.macrolenses.de in the auction text without my prior permission and violating my copyrights (which most likely I will report to ebay; they have a special copyright department)
- the claim that the lens construction (I guess he means the lens design) is identical to the S-Orthoplanar definitely wrong, since the S-Ortho is a much more complex design than the S-Planar (it is all mentioned on my site, most likely to much work to read through?)
- it covers only 32x45mm negative size, far from the claimed 6x6!
- quote "Sold for the price of a standard Hasselblad set in the late sixties/70s" is simply also not true, to put it very mildly. That lens was much, much cheaper and readily available; it sells today depending on the ebay mood swings for about EUR125/$175 here, sometimes even much cheaper since a lot of printers go digital now and dump their analog equipment. I have several excellent ones here and I also have the S-Orthoplanars.

But at least it is a good Zeiss lens, that I can prove to be honestly true.

Klaus