Sezvo zvinozivikanwa, yedu 57x 850mm kureba-range zoom kamera idiki muhukuru (32cm chete pakureba, nepo zvigadzirwa zvakafanana zvinowanzopfuura 40cm), zvakareruka pakurema (6.1kg yezvigadzirwa zvakafanana, nepo chigadzirwa chedu chiri 3.1kg), uye yakakwirira mukujeka (inenge 10% yakakwirira mumutsara wekuyedza kujeka ) ichienzaniswa nemhando imwechete 775mm mota zoom lens. Kunze kweiyo yakawanda - yekubatanidza tekinoroji tekinoroji uye dhizaini yakabatanidzwa, chimwe chinhu chakakosha kushandisa aspherical lens dhizaini.

Ndeapi mabhenefiti ekushandisa aspherical lenses mune telephoto lenses?

Kubvisa spherical aberration

Spherical lenses inogona kukonzera spherical aberration, zvinoreva kusaenderana kwemhando yemufananidzo pakati pepakati nemapendero elens. Aspherical lenzi anogona kugadzirisa iyi spherical aberration, zvichikonzera kujeka uye kwakafanana kufungidzira.

Kuvandudza optical quality

Aspherical lenses inogona kuvandudza kunaka kweiyo optical system, zvichiita kuti kufungidzira kuve kwakanyanya. Vanogona kuderedza kukanganiswa kwakadai secoma, curvature yemunda, uye chromatic aberration, nokudaro vachivandudza kufungidzira kwekufungidzira uye kuwirirana.

Kuwedzera resolution

Iko kushandiswa kwema lens epherical kunowedzera kugadzirisa, zvichibvumira kuratidzwa kwakadzama kweruzivo. Vanogona kuderedza kupararira kwechiedza uye chromatic aberration, nokudaro vachivandudza kujeka kwemufananidzo uye kupinza.

Kuderedza uremu hwe lens uye saizi

Kuenzaniswa neyechinyakare spherical lenses, aspherical lenzi anogona kutetepa, nekudaro achidzikisa huremu uye saizi yelens, ichiita kuti midziyo yekamera ireruke uye inotakurika.

Kuwedzera kuchinjika mukugadzira lens

Kushandiswa kweaspherical lenses kunopa vagadziri ve lens rusununguko rwakawanda uye kuchinjika. Iwo anogona kugadzirwa zvinoenderana neakananga ekufungidzira anodiwa kuti awane zvirinani ekufungidzira mhedzisiro.

Muchidimbu, kushandiswa kweaspherical lenses kunogona kuvandudza kunaka kwemufananidzo, kuwedzera kugadzirisa, kuderedza uremu uye saizi, uye kupa kuchinjika kukuru mukugadzira lens. Aya maitiro anovaita chinhu chakakosha mune telephoto lenses.

Panguva imwecheteyo, aspherical lenses inodhura zvakanyanya, saka mazuva ano akawanda emagetsi zoom lenses haashandisi aspherical lenzi kuitira kuderedza mari.