Mmekọrịta Mechanical: Gịnị bụ njikọ dị n'etiti oghere na shutter?

N'ebe a na-amụ ihe, ndị na-ese foto na-eju anya mgbe, mgbe m na-achọpụta ihe mkpuchi mkpuchi, m na-ajụ, sị: * "Olee lenses ị na-ejikarị eme ihe? Ị gbara na ọkụ iri ise-kopeck 50mm f / 1.8G ma ọ bụ ọkachamara dị arọ 70-200mm f / 2.8 VR mbugharị?"*.

Ọ dị ka, gịnị ka oghere nwere jikọrọ ya na ya? Ka anyị gosi njikọ nke kinematic si n'ime.

3 Ihe kpatara mmetụta nke optics na ngalaba mbanye shutter

1. Aperture Lever arụ ọrụ:Na anya anya m Nikon F-Mount (belụsọ usoro E nwere diaphragm electromagnetic) onye na-emechi ihe na onye ọkwọ ụgbọ ala diaphragm na-ama jijiji ** site na otu igwe eletriki eletrik ***! Mgbe Okpokoro ọ bụla, lever dị n'okirikiri mmiri bayonet na-akwatu ala oghere oghere. Na anya ochie siri ike ibu dị na moto a na-abawanye site na 40%.
2. Microdeformations nke magnesium chassis sitere na optics dị arọ:Ọ bụrụ na ị na-ebu ozu D750 mgbe niile na 2-kilogram 70-200mm f / 2.8 telephoto igwefoto agbakwunyere eriri ahụ site na ahụ (ọ bụghị site na ụkwụ ụkwụ ụkwụ!), N'okpuru ibu arọ. oghere, microbending nke n'ihu etiti nke bayonet emee. Nke a na-emepụta ihe na-ezighị ezi nke oche mkpuchi.
3. Electromagnetic diaphragm (E-ụdị):Igwe anya Nikkor E nke oge a (dịka ọmụmaatụ, 200-500mm f / 5.6E) wepụ ihe arụrụ arụ ọrụ na lever shutter site na iji moto stepper nke ya mechie oghere ahụ.

Tebụl ibu ụgbọala dabere n'ụdị ngwa anya

Ụdị oghere	Ụkpụrụ njikwa oghere	Ibu moto nke Shutter
Primes 50mm f/1.8G / 35mm f/1.8G	Leash igwe (Mmiri ọkụ)	Ọkọlọtọ (eyi obere uwe)
Mbugharị dị arọ 80-200mm f/2.8D / 70-200mm f/2.8G	Leash igwe (mmiri siri ike + arọ)	Mbara ụbara ibu na igbe igbe
Nikkor E/Z-Mount Optics nke oge a	Electromagnetic diaphragm	Opekempe (Leash anaghị etinye aka)