Sigma 50-100mm f / 1.8 DC HSM Daim Duab Looj Mem duab thiab cov xaim teeb pom kev zoo

Sigma yog ib tus tshaj tawm txog kev tshaj tawm ob yam khoom tshiab, uas nws qhov specs thiab cov duab tau nyuam qhuav dhau los. Lawv yog 50-100 hli f / 1.8 Kos duab thiab 30mm f / 1.4 Teeb tsom iav thiab lawv yuav los sai sai.

Txhua tus neeg nyiam thib peb lub koob yees duab cov chaw tsim khoom yog npaj los nthuav tawm ob qho khoom tawm tshiab. Cov lus xaiv tau nthuav tawm hauv lub vev xaib, tab sis nws tsis muaj leej twg muaj peev xwm txheeb xyuas qhov tseeb meej txog cov qauv yav tom ntej.

Peb tuaj yeem tso txhua yam tseg rau peb tam sim no, raws li qhov chaw cia siab tau cia li xau lawv thiab, thaum ob qho tib si ntawm lawv lub suab zoo li cov khoom lag luam zoo, ib qho yuav tau nyiag tag nrho cov teeb pom kev zoo. Ua ke nrog 30 hli f / 1.4 DN Hloov Cov Qauv, Sigma yuav qhia tawm 50-100mm f / 1.8 DC HSM Daim Duab Looj Mem.

Sigma 50-100 hli f / 1.8 DC HSM Daim duab teeb pom kev zoo tau tshwm sim hauv lub vev xaib ua ntej tshaj tawm ntawm kev tshaj tawm

Sigma tag nrho Kev Ua Yeeb Yam dhau los yog kab kev pom zoo. Ib qho kev zam yuav yog 24-105mm f / 4 chav tsev, uas tsis tau txais kev zoo siab los ntawm cov neeg thaij duab. Txawm li cas los xij, lub tswv yim sawv thiab coob tus neeg mob siab tos kom lub tuam txhab tuaj nrog cov khoom tshiab.

Lub sijhawm no, nws yuav loj dua thiab txhua tus yuav los hais txog nws. Cov khoom lag luam yog Sigma 50-100mm f / 1.8 DC HSM Daim Duab Looj Mem thiab yog tsim rau DSLR koob yees duab nrog APS-C-qhov loj me duab duab.

Nws yuav tso tawm hauv Canon, Nikon, thiab Sigma nce, txawm nws yuav muaj rau Sony A-mount cov koob yees duab zoo li. Cov optic no yuav muaj 35mm focal ntev sib npaug ntawm 75-150mm.

Nov yog Sigma 50-100mm f / 1.8 DC HSM Daim Duab Looj Yaj Yuav Los.

Txij li thaum 18-35mm f / 1.8 Kos duab lub lens tau tawm los, tib neeg tau tsa lawv qhov kev cia siab los ntawm Sigma. Qhov optic nrog qhov tshwj xeeb ntau aperture ntawm f / 1.8 thoob plaws 50-100 hli zoom ntau yuav yeej tau raws li qhov lawv xav tau.

Optic yuav muaj 21 ntsiab hauv 15 pab pawg nrog peb pawg FLD thiab ib qho SLD uas muaj nrog lwm tus. Nws yuav muaj qhov tsawg kawg nkaus tsom kev deb ntawm 95 centimeters thiab 9-hniav xov ncig.

Lub ultrasonic lub cev muaj zog yuav yog qhov tshiab thiab yuav muab kev ua kom pom tseeb zuj zus thiab kev hloov siab. Raws li cov paim quav, lub lens los nrog sab hauv thiab sab hauv zooming mechanisms, txhais tau tias lub ntsiab lus pem hauv ntej lub zog tsis tig thaum tsom, thaum lub sijhawm ntev ntawm lub lens tsis nce thaum txav hauv.

Sigma 50-100mm f / 1.8 DC HSM Daim Duab Looj Mem yuav ntsuas 93.5mm txoj kab uas hla thiab 170.7mm ntev. Nws lub taub lim yuav loj ntawm 82mm thiab nws ntev tag nrho yuav yog 1.490 grams. Nws yuav raug tso tawm ntawm kev ua lag luam nyob ib ncig ntawm lub Plaub Hlis 22 rau tus nqi kwv yees $ 1,500.

Sigma 30mm f / 1.4 DN Ntu lens tuaj sai sai rau cov koob yees duab tsom iav

Lo ntsiab muag thib ob kuj tseem zoo heev rau ntawm daim ntawv thiab nws thaum kawg nws yuav faus f / 2.8 pom pom nyob hauv Sigma qhov chaw tsom iav tsis-tu. Lub 19mm, 30mm, thiab 60mm optics txhua qhov muaj f / 2.8 ntau tshaj qhov siab.

Cov kev hloov pauv muaj 30 hli f / 1.4 DN Lub lens. Thaum nws cov focal ntev tau pom ua ntej, nws lub ci ci yuav txais tos los ntawm cov neeg siv lub koob yees duab tsom iav. Lub chaw tsim khoom hauv Japanese yuav tso cov optic no rau Sony E-mount thiab Micro Plaub Feem Thib.

Sigma 30 hli f / 1.4 DN Lub teeb meem tsom xaj yuav raug tshaj tawm nyob rau lub Peb Hlis no.

Cov peev txheej tau tshaj tawm tias optic yuav muaj cuaj yam hauv xya pawg nrog 9-bladed round aperture. Tus tsav tsheb AF yog lub kauj ruam lub cev muaj zog thiab qhov kev taw qhia yam tsawg kawg nkaus yog 30 centimeters.

Cov optic no tseem muaj qhov ua kom pom sab hauv, tab sis nws cov lim xov ntsuas 52 hli. Lub Sigma 30mm f / 1.4 DN Lub lens muaj qhov ntev ntawm 73.3mm thiab txoj kab uas hla 64.8mm. Cov kws yees duab yuav zoo siab hnov ​​tias cov khoom lag luam yog lub teeb yuag, thaum nws hnyav nkaus xwb 265 grams.

Nws muaj cov ntsiab lus txaus hais tau hais tias lub lens yuav pib muaj nyob ib ncig ntawm Lub Peb Hlis 18 rau kwv yees $ 450.