Schneider-Kreuznach 135mm F/3.5 Tele-Xenar electric. Is there an Adaptor for this

**rollsman4** · 05-01-2021, 08:40 AM

Schneider-Kreuznach 135mm F/3.5 Tele-Xenar electric, I am looking into buying Schneider;Kreuznzch lenses for my 645Z. Can you let me know if they make an adaptot for these lenses. Also, is there a Portrait lens that will work on my Z
Either this brand or Contax 645 ? Thanks

**barondla** · 05-01-2021, 08:55 AM

Originally posted by rollsman4

Schneider-Kreuznach 135mm F/3.5 Tele-Xenar electric, I am looking into buying Schneider;Kreuznzch lenses for my 645Z. Can you let me know if they make an adaptot for these lenses. Also, is there a Portrait lens that will work on my Z
Either this brand or Contax 645 ? Thanks

Wasn't aware of this lens. Appears to be designed for 35mm M42 screw thread. If so, there's no way to build just an adapter to fit the Pentax 645. The lens will be too far from the sensor to allow infinity focus. The adapter would require optics to work at infinity.

Thanks,
barondla

**rollsman4** · 05-01-2021, 11:25 AM - **1 Like**

Thank you for sharing that. Dennis

**RICHARD L.** · 05-01-2021, 01:52 PM - **1 Like**

If you are searching for terrific and affordable portrait lenses for a 645Z, check the roster of Pentax 67 lenses. They can be mounted very precisely using the '67 to 645' Pentax adapter and used in aperture-priority autoexposure. I found a like-new P67 200 mm f/4 for 103 $ on eBay in Japan, a marvelous short telephoto. Even a P67 90-180 mm f/5.6 costs only 265 $ and is ultra-sharp. The P67 105 mm f/2.4 is very sought-after and unfortunately remains quite expensive (800 $ and up for a late version) but is the ideal portrait focal length.

Regards

**rollsman4** · 05-01-2021, 02:02 PM - **1 Like**

I went with the Pentax 645 FA 120 Macro, Great Reviews on this forum. Thank you very much for sharing the info.

05-01-2021, 08:40 AM	#1
rollsman4 Site Supporter Join Date: Nov 2014 Posts: 459	Schneider-Kreuznach 135mm F/3.5 Tele-Xenar electric. Is there an Adaptor for this Schneider-Kreuznach 135mm F/3.5 Tele-Xenar electric, I am looking into buying Schneider;Kreuznzch lenses for my 645Z. Can you let me know if they make an adaptot for these lenses. Also, is there a Portrait lens that will work on my Z Either this brand or Contax 645 ? Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
For Sale - Sold: Schneider xenar 45mm f/2.8, tele-xenar 135mm /4.0, xenon 50mm f/1.9, Kodak Retina IV	hinman	Sold Items	6	06-15-2014 04:29 AM
For Sale - Sold: Schneider-Kreuznach Tele-Xenar 360mm 1:5.5	Baard-Einar	Sold Items	5	02-07-2013 02:13 AM
Help on Screw Mount ID of a SCHNEIDER-KREUZNACH TELE XENAR 18CM F5.5	akfreak	Canon, Nikon, Sony, and Other Camera Brands	6	06-23-2010 11:27 AM
For Sale - Sold: Schneider-Kreuznach Edixa-Tele-Xenar 135mm f/3.5 (M42)	Zewrak	Sold Items	4	01-30-2009 06:22 AM

05-01-2021, 08:55 AM	#2
barondla Site Supporter Join Date: Sep 2006 Location: midwest, United States Photos: Gallery \| Albums Posts: 5,714	Originally posted by rollsman4 Schneider-Kreuznach 135mm F/3.5 Tele-Xenar electric, I am looking into buying Schneider;Kreuznzch lenses for my 645Z. Can you let me know if they make an adaptot for these lenses. Also, is there a Portrait lens that will work on my Z Either this brand or Contax 645 ? Thanks Wasn't aware of this lens. Appears to be designed for 35mm M42 screw thread. If so, there's no way to build just an adapter to fit the Pentax 645. The lens will be too far from the sensor to allow infinity focus. The adapter would require optics to work at infinity. Thanks, barondla

05-01-2021, 11:25 AM - 1 Like	#3
rollsman4 Site Supporter Join Date: Nov 2014 Posts: 459 Original Poster	Thank you for sharing that. Dennis

05-01-2021, 01:52 PM - 1 Like	#4
RICHARD L. Loyal Site Supporter Join Date: Oct 2018 Location: Quebec City, Quebec Posts: 6,575	If you are searching for terrific and affordable portrait lenses for a 645Z, check the roster of Pentax 67 lenses. They can be mounted very precisely using the '67 to 645' Pentax adapter and used in aperture-priority autoexposure. I found a like-new P67 200 mm f/4 for 103 $ on eBay in Japan, a marvelous short telephoto. Even a P67 90-180 mm f/5.6 costs only 265 $ and is ultra-sharp. The P67 105 mm f/2.4 is very sought-after and unfortunately remains quite expensive (800 $ and up for a late version) but is the ideal portrait focal length. Regards

05-01-2021, 02:02 PM - 1 Like	#5
rollsman4 Site Supporter Join Date: Nov 2014 Posts: 459 Original Poster	I went with the Pentax 645 FA 120 Macro, Great Reviews on this forum. Thank you very much for sharing the info.