呢支係頂級蘇聯投影機鏡頭 (Optical Design: 4 elements in 2 groups, Petsval)，在外國攝影圈中享負盛名，絕不可少窺，好少一支投影機鏡頭係互聯網有咁多連結同相片流傅傳，因為外國係唔興改鏡，亦跟本冇人同你改，但呢支係名鏡厘，好多人千方百計改厘用。
適宜改落
1)SONY A7系列
2)Canon / Nikon
3)中幅菲林機如 Mamiya M645
4)中幅數碼機如Fujifilm GFX 50S

*鏡片極靚，超越95新，除有幾粒微塵外，冇霉、冇霉跡、冇甩coating，冇霞冇霧(霞霧輕微對冇)、連由清潔鏡面造成嘅抹痕都唔覺有、清晰明亮，接近完美。
* $950......不議價

睇相...................

https://www.flickr.com/photos/mike-mkvip/sets/72157663948922161/
圖三來自此連結

http://forum.mflenses.com/portraits-with-ko-120m-120mm-1-8-t67697.html
圖四來自此連結

http://forum.mflenses.com/russian-120mm-f1-8-projector-lens-35kp-120-1-8-t72490.html
圖五來自此連結

KO-120М 120/1.8 Camera: Canon 5D3
http://allphotolenses.com/gallery/item/c_7305.html
http://allphotolenses.com/gallery/item/c_7309.html
http://allphotolenses.com/gallery/item/c_7308.html
http://allphotolenses.com/gallery/item/c_7307.html

大光圈俄仔投影鏡 120mm f/1.8
http://pop.dchome.net/forum.php?mod=viewthread&tid=1234030&page=1

The КО-120М is a fast lens, designed for projecting 35 mm motion pictures. Its optical scheme employs a “four-lens aplant” design, also known as the Petzval lens. This results in considerable field curvature. The optical elements are covered with single-layer chemical coating.
以上講法來自此網頁 http://allphotolenses.com/lenses/item/c_2433.html

http://radojuva.com/2015/12/35kp-1-8-120/





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