俄海关查出一中国游客试图携带具有放射性的镜头入境，1元

sencon

俄海关：一中国游客试图携带具有放射性的相机镜头入境，为了你的健康，慎用带辐射镜头！
http://forum.xitek.com/thread-1664192-1-1-1.html

sencon

Argus Cintagon 50mm f/2.8
Bell & Howell Director Series (Model 1208?) XL Super 8 movie camera; Zoom Lens f: 1.2 \ F: 9-22.5 mm
Canon FL 50/1.4 (#15324) Up to 770 cpm at the rear lens. (very early version) http://www.billead.com/canonfl/
Canon FL 50/1.8 I (#58233): Up to 450 cpm / 26 μSv/h at the back lens, up to 7 cpm / 0.4 μSv/h behind camera or at the lens barrel. (early version with graphic hyperfocal distance scale)
Canon FL 58/1.2 (#25516, #44528): Up to 180 cpm / 10 μSv/h at the back lens, up to 30 cpm / 1.7 μSv/h behind camera or at the lens barrel. YouTube
Canon FD 17mm f/4
Canon FD 35mm f/2.0 (versions from the early 1970's, concave; chrome filter ring)
Canon FD 55mm f/1.2 S.S.C. Aspherical (Measured at 46532 CPM @ front element; S.S.C non-Aspherical is not radioactive) YouTube
Canon (SUPER-CANOMATIC LENS) R 50mm 1:1.8 No.78xxx YouTube
Carl Zeiss Jena Pancolar 55mm f1.4 (measured at 2360 nSv/h)
Carl Zeiss Jena Pancolar 50mm f1.8 "Zebra"
Carl Zeiss Jena Biometar 80mm f2.8 "Zebra" "(Only P6 mount version )
Carl Zeiss Jena Flektogon 50mm f4 "Zebra" "(Only P6 mount version ) YouTube
Carl Zeiss Jena Flektogon 35mm f2.8 (source?)
Carl Zeiss Jena Prakticar 50mm f1.4 (1st version with engravings around the outer side of barrel)
Carl Zeiss Tessar 80mm f/2.8 (old silver Hasselblad version https://www.youtube.com/watch?v=dKyc4LIIB6c)
Focal (Kmart store brand) 35mm f/2.8
Fujica Fujinon 19mm f/3.5 EBC (Arkku at mflenses.com)
Fujica Fujinon 35mm f/1.9 EBC (Arkku at mflenses.com)
Fujica Fujinon 50mm f/1.4 non-EBC early style = non-uniformly segmented focusing ring (measured at 35137 CPM @ back element)
Fujica Fujinon 50mm f/1.4 EBC early style = non-uniformly segmented focusing ring YouTube (unspecified EBC or not)
Fujica Fujinon 100mm f/2.8 EBC (Arkku at mflenses.com)
Fujica Fujinon 400mm f/4.5 EBC (Arkku at mflenses.com)
Fujica Fujinon 600mm f/5.6 EBC (Arkku at mflenses.com)
GAF Anscomatic 38mm f/2.8 (GAF Anscomatic 726 camera)
Industar 61 L/Z MC (L is for Lanthanum - radioactive element)
Kodak Aero-Ektars (various models) YouTube
Kodak Ektanon 4-inch Projection Lens f/3.5
Kodak Instamatic M24/26 Super 8 Camera YouTube
Kodak Ektar 80mm f/2.8 (for Hasselblad 1600F and 1000F, made 1948-1950)
Kodak Ektar 135mm f/3.5 (for Hasselblad 1600F and 1000F, made 1949)
Konica Hexanon AR 50mm f1.4 (smallest aperture 16; green AE marking)
Konica Hexanon 57mm f1.2 YouTube
Konica Hexanon 21mm f4 SN 7029XXX, primarily thorium and thorium decay products
Leica 50mm f/2 Collapsible Summicron YouTube
Mamiya/Sekor 55mm f/1.4 (m42, chrome+black, flat rear element) (Measured by specialists, 25th april 2014 @ Poissy, France: from 5 to 10 μSV/h by direct touch & 1720 CPM).
Mamiya/Sekor SX 55mm f/1.8 6,8 μSV/h https://youtu.be/DZeqOwv00jI?t=4s
Mitakon (Zhongyi) 50mm f0.95 Ver I Speedmaster （4 Lanthanum optic elements)
Mitakon (Zhongyi) 50mm f0.95 Ver II Dark Knight（1 Lanthanum optic element)
Nikkor 35mm f/1.4 (early variant with thorium glass elements)
Olympus Zuiko MC Macro 20mm f/3.5 (http://www.flickr.com/photos/s58y/6802092736/)
Olympus Zuiko Auto-S 1:1,2/55 mm (first version with thorium glass elements)
Olympus Zuiko Auto-S 1:1,4/50 mm (only first version "Silvernose" is Radioactive) YouTube
Olympus Zuiko Pen F 1:1.4/40mm (rear element)
Rikenon AUTO 55mm f/1.4 (22937 CPM rear element)
SMC Takumar 20mm f/4.5 (http://www.flickr.com/photos/s58y/6802092736/)
SMC Takumar 35mm f/2.0 (Asahi Optical Co.)
Super Takumar 35mm f/2.0 (Asahi Optical Co.)
SMC Takumar 50mm f/1.4 (Asahi Optical Co.) YouTube YouTube
Super Takumar 50mm f/1.4 (only the latest version with 7 elements)
SMC Macro Takumar 50mm f/4.0 (http://forum.mflenses.com/radioa ... -lenses-t25714.html)
Super Takumar 55mm f/1.8 (Asahi Optical Co.)
SMC Takumar 55mm f/1.8 (Asahi Optical Co.) YouTube YouTube (not all)
Super Takumar 55mm f/2.0 (Asahi Optical Co.) YouTube
SMC Takumar 55mm f/2.0 (Asahi Optical Co.)
SMC Takumar 85mm f/1.8 (Asahi Optical Co.)
Super Takumar 6x7 105mm f2.4 (Asahi Optical Co.)
Steinheil Auto-Quinon 55mm f/1.9 KE mount
Tele-Takumar 6.3 300mm (Asahi Optical Co.) http://jbmedia.zenfolio.com/tt300_63/he0cf60f#he0cf60f
Topcor RE GN 50/1.4 (Lanthanum glass [source? Lanthanum or Thorium?]) YouTube
Topcor UV 50mm f/2
Yashinon-DS 50mm f1.4 (Yashica) (Measured at 680 nSv/h)
Yashinon-DS 50mm f1.7 (Yashica) (Measured at 762 nSv/h)
Yashinon-DX 50mm f/1.4  (Yashica) (Measured at 1359 nSv/h)
Yashinon-DX 50mm f/1.8 (Yashica) YouTube
Yashinon-DS-M 50mm f/1.4 (Yashica) (Measured at 572 nSv/h)
Yashinon-DS-M 50mm f/1.7 (Yashica) (Measured at 798 nSv/h) YouTube
Yashinon-DS-M 55mm f/1.2 (Yashica) (Measured at 1056 nSv/h)
Yashinon-ML 50mm f/1.7 (Yashica) YouTube (likely only the older design with 'YASHICA LENS ML 50mm 1:1.7 YASHICA MADE IN JAPAN' writings is radioactive)
Yashinon 55mm f1.2 (Tomioka) (also branded as Cosinon, Chinon, Tominon, Tomioka or Revuenon; Measured at 981 nSv/h)
Leitz Wetzlar Summicron 5cm f2 (M39)
Vivitar Series 1 28mm f1.9
Voigtlander 50mm Nokton Prominent
Wollensak Raptar 28-75mm f2.3 YouTube
Zenitar-M 50mm f1.7 (Lanthanum glass)
Lenses with elements made of contaminated glassEdit
Some lenses of the 1960s have elements made of glass sorts which include small traces of radioactive rare-earth elements. Sometimes this accidental radioactivity causes a significant yellowing of these lens elements. Some users of such lenses reported in camera blogs that they healed the yellowing by exposing these lenses to the ultraviolet light of the sun. The procedure needs several days of sunny weather to have a positive effect. Lens elements with such yellowing radioactive impurity are in the following lenses:

Minolta MC W. Rokkor-SI 1:2.5 28mm (early variant, before radioactive glass impurity could be banned)
Minolta MC Rokkor-PG 1:1.2 58mm (early variant, before radioactive glass impurity could be banned)
Minolta MC Rokkor 1:1.7 85mm (the earliest variant of the MC line) http://www.dg77.net/photo/x500/mc85.htm
The healing of yellowing by sunlight is also reported for some lenses with thorium glass elements, for example for the Nikkor 35mm f/1.4 lens and the Super Takumar 50mm f/1.4 lens.

sdkb24

好头!!!

tanmingqi

怕辐射的扔给我

不缺德

Nikkor 35mm f/1.4 (early variant with thorium glass elements)

有这个的人，不少吧？

独立玩表人

赶紧喝板蓝根冲剂

zyxwzx

日本辐射地区食品都吃了......这都不是事..

hoige

这是镜头材料中含有辐射，和日本核电站的辐射没特别关系（虽然不少是日本产的）
另外这样的辐射还没有特别危害（当然不能吃下去或者贴着皮肤、眼镜很长时间）。
日常的电池、煤类的玩意多少都有点辐射，特别是早期的电池，用了多少年

shuichengjian

takumar
妥妥的中枪

威廉王子

放心用！
我用盖革计数器检测过我的所有镜头，以下两只辐射超标：
1、Voigtlander福伦达35/3.4DKL0.9米版（珠戒），上面的列表没有；
2、Schacht沙赫特50/2.8M42细斑马版，上面列表也没有。

但是，把镜头装在机身上，从机背测量，一点也不超标！！
而且查过资料，这种辐射的强度是以距离的平方比衰减。
说明隔着一台相机已经是安全的了。

不过，如果仍不放心，就把镜头扔给我吧！！！

P.S. 而上述列表中的Canon FL 50/1.4、FL50/1.8，YASHICA ML 50/1.7我都有，没检测出超标