Mafayilo a Nikon patent ya 58mm f / 1.4 mandala

Nikon wapempha chilolezo chatsopano chokhudza mandala a 58mm, kutsatira ma patent ena atatu aposachedwa omwe ali ndi mandala ofanana a 58mm.

Makampani akulu nthawi zonse amafunsira setifiketi yatsopano. Izi ndi zachilengedwe chifukwa kupita patsogolo kwaukadaulo sikutha. Pomwe Nikon akuyesera kugulitsa zida ndi makamera ambiri, kampaniyo imayenera kubweretsa zina kumsika. Patent yaposachedwa ikuphatikizapo Lens lalikulu la 58mm ndi kabowo ka f / 1.4 komwe kumatha kupezeka posachedwa.

Magwiridwe antchito a mandala a Nikon 58mm f / 1.4 omwe afotokozedwa pakugwiritsa ntchito setifiketi

Nikon 58mm f / 1.4 mfundo zamatsenga

Tsiku loyambirira kulembera linali Julayi 8th, 2011, pomwe ntchito idavumbulutsidwa pa Januware 31, 2013. Kutalika kwenikweni kwa mandala atsopano kumaima pa 58.0216mm, pomwe kabowo ndi 1.450. Kuphatikiza apo, mandala adapangidwa zinthu zisanu ndi zinayi zidagawika m'magulu asanu ndi zinthu ziwiri za aspherical. Kutalika kwazithunzi akuti ndi 21.6mm, kutalika kwa mandala kumayesedwa ndi 93.67772mm, pomwe backfocus yakhazikitsidwa pa 38.71868mm.

Chidziwitso chomaliza chokhudza mandala ndikuti imakhala ndi mawonekedwe oyang'ana theka la madigiri 20.82. Kusindikiza kwa nambala ya patent 2013-19993, kutsatira zithunzithunzi zitatu zofananira, sizitanthauza kuti Nikon adzakankhira mandala atsopano a Nikkor pamsika posachedwa, popeza kampaniyo sinalengeze kuti ititsogolere.

Nikon akulimbana ndi ma patenti a mandala a 50mm ndi 58mm

Pali ma patent angapo operekedwa ndi Nikon okhudza magalasi 50 ndi 58mm. Onsewa ali ndi zotumphukira za f / 1.2 kapena f / 1.4. Nikon wayamba kuperekera ma patenti kuyambira mu Ogasiti 2007, pomwe patifiketi ya 2009-058651 idawululidwa. Imakhala ndi mandala a 50mm okhala ndi f / 1.4 mandala. Patatha miyezi isanu ndi umodzi, Nikon adavomerezedwa makina ena a Nikkor 50mm f / 1.4, ngakhale kusiyana pakati pa awiriwa sikunadziwike.

Pambuyo pake, Nikon adayamba kupanga patali ma lens 58mm ndi kutsegula kwa F1.2. Yoyamba inali mu Epulo 2011, yachiwiri idabwera chaka chomwecho mu Juni ndipo chomaliza chidasungidwa mu Julayi 2011, ndipo ndikofunikira kudziwa kuti onse anali ndi kutsegula komweko . Komanso mu Julayi 2011, Nikon adasanja patent ya 58mm F1.4 lens. Epulo 2011 udali mwezi wofunikira kwa Nikon popeza magalasi ena akulu awiri anali ndi setifiketi, kuphatikiza 50mm F1.2 ndi 60mm F1.2.