Mirror Lens 1.4/150 mm for M42, 1992

NYE Optical Co, USA. "Super Telephoto 1:1.4 F = 150 mm Ultraviolet-Infrared", for formats up to 24 x 36 mm, can be focused from beyond infinity to 10 feet, can be stopped down from 1.4 to 11 using 4 sectors that fold down at 90 degrees each, works. Lightweight construction, height 19.3 cm, diameter of front mount 114 mm. Designed by Richard Nye to record the 121 nm Lyman Alpha spectral lines, mirror surfaces with a little condensation, front ring can be screwed on, cleaning is worthwhile. Rare lens with positive reviews on the internet for users who want to use very shallow depths of field. By using the very strong bokeh with a little stopping down and maintaining the 90 degree angle of the right-angled aperture blades to the right-angled sensor chip, additional image information can be obtained in post-processing using the digital matrix filter.

布雷克拍品等级是为了方便竞买人判断拍卖品的成色而设置的。布雷克等级用1到6级来标注外观和功能的成色，(从非常好到非常差)。 在目录图册里用括号里的2个数字来表示，前一个数字表示外观成色的级别，后一个数字表示功能成色的级别。如(3/2)表示外观成色是3(满意的)，功能成色2(好)。 成色 定义参照下列标准： 1 - 非常好 (未使用过，没有使用痕迹) 2 - 好 (新，极少的使用痕迹) 3 - 满意的 (普通的使用痕迹) 4 - 及格的 (明显的使用痕迹，某个非主要部件是后配的) 5 - 有缺陷的 (极明显的使用痕迹, 某个主要部件是后配的，功能上有缺陷，需要修理) 6 - 非常差 (严重破损, 缺少重要部件)