[LargeFormat] Any info on the Industar-37?

[Robert Mayrand]

Hi Marco,

There is a little bit of info but not much on the german site
http://www.baierfoto.de/russobj/objektive.html (Marco should'nt have any
problem but for those of you not speaking german you can translate it via
alta vista babel translater).

According to his diagram it seem that it is indeed only 3 single lens
element, normal objective for 18X24cm, 53=B0, Resolution (center/edge) 20
lin/mm / 5 lin/mm  (wich seem incredibely low to me!!!)

Hope this help.

Robert
Mtl, Quebec




 On 1/27/02 10:39 AM, "Marco Pauck" <marco@pauck.de> wrote:

> As an addendum to my last message regarding the FK:
>=20
> The FK 18x24's standard lens is an Industar-37 4,5/30 cm.
> I've disassembled it to fix the sticky diaphragm and remove
> the ugly paint revealing a really nice brass finish:
>=20
> http://www.pauck.de/marco/photo/stuff/fk/lens.jpg
>=20
> I noticed that the optical design consists of three elements,
> but I'm not sure how many actual lenses. From the reflections
> by the lens' coating, I would guess that the elements are
> single lenses (not achromats).
>=20
> The Industar-37 is included in Kadlubek's lens catalog (RUS0760)
> but without any details. Princelle's book has no further info
> at all.
>=20
> Does anyone have more information?
> Is the lens design a copy of a western design?
> Any hints about performance and coverage?
>=20
> Marco
> --
> Marco Pauck -- marco@pauck.de -- http://www.pauck.de/marco/
> For every complex problem, there is a solution that is simple,
> neat, and wrong.  -- H. L. Mencken
>=20
> _______________________________________________
> LargeFormat mailing list
> LargeFormat@f32.net
> http://www.pairlist.net/mailman/listinfo/largeformat