Lens Canon 24-105mm: xyuas, specifications, xyuas. Canon EF 24-105mm f / 4L YOG USM

Canon muaj, nrog rau qhov ntau tsoos lo ntsiab muag f / 2.8 yog tsim ib tug kab L nrog lo ntsiab muag f / 4. Lawv yog cov me me thiab, pheej yig dua thiab sib zog dua pa sawv daws yuav, tab sis muaj ib tug siab zoo thiab cov yam ntxwv xws li muaj zog thiab impermeability.

Series f / 2.8 lens muaj xws li xws kev rau Canon, zoo li 70-200, 24-70, 16-35 (YOG). F / 4 yog qauv 70-200, 24-105, 17-40 thiab YOG. Nyob rau hauv no los xyuas peb yuav kub siab rau EF 24-105mm / 4L YOG USM.

nta txheej txheem cej luam

Qhov tseeb hais tias tus ntaus ntawv yog ib tug series ntawm L, peb yuav hais kom sai li sai raws li lub lens poob mus rau hauv lub ob txhais tes. Thiab tsis tsuas vim hais tias ntawm lub liab lub nplhaib nyob rau pem hauv ntej ntug - qhov no yog qhia los ntawm nws lub zog thiab kev cia siab. Hlau mount yog tsawg npaum li cas raug rau hnav tshaj yas, tiam sis los ntawm hmoov av thiab dej yuav tuaj nyob rau hauv muab rau thaum shooting thaum ib lub teeb los nag. Nplhaib-hom Ultrasonic meej, sai sai thiab yuav luag twj ywm yog ib tug zoo meej kom pom tseeb. Qhov thiab phau ntawv hom.

EF 24-105mm / 4L - Canon lens, uas nws lub cev tus yam ntxwv muab nws ib tug zoo set ntawm focal lengths. Tej zaum txawm zoo dua lub 24-70 hli / 2.8L. 24 hli muab ib tug yeej muaj tseeb ntau lub kaum sab xis. Ob lub lens npog lub cev ntau nyob rau hauv 50 mm, tab sis cov qauv no kuj muaj xws li portrait thiab, raws li ntau hu ua lub focal ntev ntawm 80-100 hli. Tag nrho cov hom ntawv cov koob yees duab nrog xws li tsis muab zoo heev footage ntawm lub "lub taub hau thiab lub xub pwg nyom". 70 mm 24-70 txwv txhais tau tias qhov no lens yog tsawg haum rau tej dluab.

Nyob rau hauv tas li ntawd, cov qauv no txig tuskheej ua hauj lwm, ib pawg neeg ntawm cov neeg thiab cov vaj tse. Qhov no yog ib qho ntawm lub hom phiaj ntawm cov hom phiaj kev, tsis muaj uas nws yog ib qhov nyuaj rau ua, thiab nrog leej twg koj yuav siv koj cov nyiaj so koobtsheej zoo meej. Kiv cua ntawm shooting nrog ntev focal ntev qauv thiab muab lub sij hawm. Ntawm cov hoob kawm, 105 hli yog tsis txaus yuav kam nrog Photoshoot - nws yuav tsum tau yuav supplemented telefotooptikoy 100-400mm / 4.5-5.6L.

Nrog ib tug luj ntawm 670 g lub lens ho sib zog qauv 28-70mm / 2.8, qhov loj uas - 950 Txawm li cas los, hais tias tsis tsis ua rau nws yooj yim los yog compact.

Maximum aperture yog sib npaug zos rau f / 4, xav txwv tsis yog, tiam sis kawg nws yog qhov tshaj tag nrho zoom ntau yam thiab ib tug tag nrho division yog zoo tshaj feem ntau zoom lo ntsiab muag nyob rau hauv lawv cov sab sauv txwv. Yuav kom tua nyob rau hauv tsev, nyob rau hauv tsawg lub teeb tej yam kev mob, lawv yuav tsum tau siab ISO chaw. Tiam sis nyob rau lwm cov tes, lwm kom zoo dua ntawm lub Canon EF 24-105mm / 4L yog ib tug ua-nyob rau hauv cov duab stabilization system uas tso cai rau ib tug 3-fold nce nyob rau hauv ceev. Yog li ntawd yog dab tsi yog hais tias tus kws yees duab twb tau ntse duab tsis muaj YOG ntawm 105 hli nyob rau hauv 1/125 sec, tab sis tam sim no nws muaj peev xwm coj cov duab ntawm lub 1/15 sec. Uas yog vim li cas lub lens yog haum rau shooting hauv tsev, tshwj xeeb tshaj yog thaum lub sij hawm hnub, txawm hais tias tus yog tej zaum yuav tsis tiv thaiv kom txhob tsab ntawv tsa suab plooj, tsuas ib tug luv luv raug yog tau tiv nrog nws. F / 2.8-optics EF 24-70, nyob rau hauv uas tsis muaj stabilizer, los yog nepolnoformatny 17-55 yog tsim rau capturing dluab nyob rau hauv tsawg lub teeb tej yam kev mob. Ntawm cov hoob kawm, cov kev pab muaj peev xwm ib txwm tuaj nyob rau hauv flash, tab sis nws txav lub ntuj kaaj quas lug ntawm tej yam ntuj tso lub teeb.

Thaum lub lens yog (nrog rau cov 70-300 YOG) ua ntej nyob rau hauv 2005, thawj kuaj nyob rau hauv tej yam tej yam kev mob, raug kev txom nyem los ntawm glare. Tus tsim tau sai sai tsau, thiab txij li thaum 2006 cov lo ntsiab muag twb ua tsis muaj qhov no drawback.

Optics muaj 18 hais, xws li ib tug Super UD thiab peb aspherical, yog li ua cov duab zoo thiab txo aberration txawm thaum lub aperture yog dav qhib.

Qhov no lens rau Canon koob yees duab kiag li kaw, uas txhais tau tias cov gaskets nyob rau hauv qhov kev tsom xam thiab zoom rings hloov, raws li zoo raws li nyob rau saum lub roob. Nyob rau hauv cov ntaub ntawv no, lub xeem siab zoo tsuas yog thaum siv nrog optics kaw chamber. Nws yeej yog ib tug series ntawm EOS pab kiag li lawm 1. Canon tuam txhab ntxiv tiv thaiv xav siv 77 hli UV lim, yog hais tias tus lens yog siv nyob rau hauv cov nag.

tsim nta

Lub lens yog zoo kawg nkaus kuas nrog cov koob yees duab 40D los yog 5D. Nws tsis yog khaub-ncaws nyias, tab sis heev compact, thiab xis los tuav nyob rau hauv tes. Qhov tshaj plaws xwb uas yog ib tug me ntsis ruam tag cov neeg siv - qhov no yog dab tsi yog qab lub zoom nplhaib thiab tsom xam cov nplhaib yog nyob rau ntawm lub hauv pem hauv ntej. Lwm yam kev lo ntsiab muag rau Canon nrog USM-motors (eg, 20-35, 28-135 YOG, 17-85 YOG) txawv nyob rau hauv hais tias lawv muaj nyob rau opposite. Los ntawm no, koj muaj peev xwm sai sai tau siv, tab sis raws li cov neeg siv, lawv yog feem ntau tsis meej pem, thiab hloov ua kom pom tseeb thaum lawv xav hloov lub zoom.

Tus tsim yog heev robust, txawm hais tias nws yog ntau lug siv yas tshaj tus so ntawm lub series ntawm tag nrho cov-hlau lens L. Zoom thiab tsom no yog ua los ntseeg nkaws thiab tsis muaj jerks, raws li rau tag nrho lub ntau yam ntawm cov kab. Dub, ntawm chav kawm, yuav ua rau tus ntaus ntawv ib tug me ntsis ntau tshaj "secretive" tshaj dawb lo ntsiab muag Canon EF 70-200mm / 4L.

Hood, uas yog muaj, yog muaj nqis txog $ 60, yog tias muas nyias. Nws yog ib heev me me tab sis raws li lub lens zoom mus rau 24 hli, nws yog tsim nyog kiag li. Nws nplaim paj zoo uas muab lub siab tshaj plaws tau kev pab them nqi, tab sis nws tsis yog zoo heev thaum lub optics yog rub mus txog rau 105 hli. Qhov no yog ib qho teeb meem tag nrho zooms. Ib tug kom zoo dua ntawm ib tug ntiav hood yog hais tias nws yog tau mus cuag thiab tig lub lens polarizer. Tsim los rau cov kev siv nyob rau hauv lub full-fledged koob yees duab. Hood ua hauj lwm zoo nyob rau lwm lub digital SLR koob yees duab, tab sis yog tsis raws li zoo, txawm nyob rau hauv lub 24-hli txoj hauj lwm, yog li ib tug me me saib lub yuav tsum tau ib tug tob hood kom tshem tau ntawm vignetting.

77 hli lim suited rau lwm yam lo ntsiab muag, xws li EF 300mm / 4L, 20-35mm / 3.5-4.5, 400mm / 5.6L, 17-40mm / 4L, 16-35mm / 2.8L, EF-S 10-22mm et al. nco ntsoov tias EF 16-35mm / 2.8L II yuav tsum tau 82-hli lim. Tej zaum qhov no yog ib lub xwb lens "Canon", uas yuav tsum tau ib tug loj loj. Nrog down-adapter 77 hli ntxaij lim dej kuj yuav siv tau rau me optics. Txawm li cas los, nyob rau hauv cov ntaub ntawv no, nws yog tsis ua tau rau nruab rau hauv lub hood.

Raws li siv tswv yim, tam sim no txheej focal lengths yog zoo tshaj plaws siv nyob rau hauv ib tug tag nrho cov ncej koob yees duab. APS-C-lub cev puv ib qho lens nyob rau hauv telephoto zoom, raws li nrog 24 hli APS-C muab tib kaum sab xis ntawm saib raws li ib tug hli 35 nyob rau hauv tag nrho cov ncej hom. Tab sis Canon EF 24-105mm / f 4L YOG USM zoo heev nrog 10-22mm / 3.5-4.5 nyob rau SLR hom 40D. Yog hais tias muaj yog ob yam tib si lub hom phiaj, tsis muaj ib tug yuav khuv xim qhov uas tsis muaj 23 hli, muaj qhov sib npaug ntawm 16-168 hli los ntawm tus taw tes ntawm view ntawm ib tug tag nrho-ntev koob yees duab.

productivity

Yeej hais tias ntawm no los mus rau tag nrho-ncej sensor (xws li cov EOS 5 D), tab sis lub lens Canon 24-105 f / 4L kuj yuav siv tau nyob rau hauv lwm yam SLR koob yees duab chaw tsim tshuaj paus, xws li cov EOS 20D, 30D, 40D thiab cov ntxeev siab series. Txij li thaum lub koob yees duab nrog APS-C-sensor, nyob rau hauv qhov tseeb, txiav tag nrho cov-tsab ntawv tsa suab duab, lawv cov kev kawm txog tej yam xws li distortion, vignetting, ntug sharpness thiab chromatic aberration, yuav yog txawm zoo dua rau tag nrho cov-ntev. Qhov no yog vim hais tias cov APS-C sensor captures ib tug "qab zib chaw" nyob rau hauv lub center ntawm tus ncej, qhov chaw uas feem ntau ntawm cov aberrations yog qis tshaj ntawm cov npoo. Tus nqi rau qhov no yog tsis tau ntawm ib tug tej yam kaum sab xis ntawm saib thiab yuav tsum tau mus kom cov Cropped duab los ntawm 1.6 lub sij hawm, kom tau qhov sib npaug luaj li cas ntawm daim duab. Qhov no thiaj li lub zuag qhia tag nrho ntawm cov sau zoo li ib tug me me negatives piv rau qhov loj.

distortions

Distortion ntau los ntawm ntsis chim distortion ntawm 24 hli heev me me kev hloov nyob rau hauv lub chav 50 mm thiab ib tug mos mos pincushion distortion ntawm 105 hli. Distortion, tej zaum yuav tsis tau heev hnov li nyob rau ntau lub tib yam kev txhaj tshuaj, tab sis yog hais tias tus kawm yog architecture nrog ib tug loj tus naj npawb ntawm ntsug thiab kab rov tav kab ntawm cov npoo ntawm tus ncej, nws yuav ua tau ib tug kev sib tw. Distortion, ntawm chav kawm, muaj peev xwm kho tau - tus kheej DPP RAW-Converter Canon yog tau txais thov fixes mus rau lub RAW-duab, tau nrog kev pab los ntawm 24-105 / 4L. Thaum shooting swb los yog tsis zoo rau cov pa kho qhov muag printing (uas yog heev tsis zoo li, tab sis tau), koj yuav tsum tau tej zaum xaiv ib tug lens muaj tsawg heev distortion. Rau tag nrho lwm yam mob, tus distortion ntawm lub scale yog ib qhov tseeb ntawm lub neej thiab yuav kho nrog ib tug me me los yog unnoticeable tej yam nyob rau hauv cov duab zoo.

vignetting

Raws li ib tug yuav xav tias yuav, nyob rau hauv tag nrho cov loj dluab siv ib tug ntau-qhib aperture yuav hnov vignetting. 24 hli ntawm lub siab tshaj plaws aperture yuav pom qhov tsaus ntuj nti ces kaum, tshwj xeeb yog nyob rau hauv cov kev yees duab nrog ib tug uniform laus (e.g., lub ntuj xiav). Vignetting 50 thiab 105 hli tsis yog raws li muaj zog raws li 24 hli, tab sis nws yog. Ib zaug ntxiv nws yuav hnov thaum shooting scenes nrog uniform ces kaum. Installation ntawm f / 5.6 ho thiaj li cov nyhuv ntawm vignetting. Txij li thaum lub matrix APS-C to tawm cov duab ntawm ib tug tag nrho cov ncej chaw, cov nyhuv rau xws daim iav hlwb yog negligible, txawm nyob rau hauv lub siab tshaj plaws qhib ntawm lub diaphragm mus rau 24 hli. Ib txhia cov tswv ntawm APS-C, uas twb enjoyed tag nrho-ntev lo ntsiab muag thiab hloov mus rau cov koob yees duab yuav tau txais ib tug surprise thaum lawv pom tias feem ntau (yog hais tias tsis tag nrho cov) ntawm lawv cov optics pib qhia vignetting.

Tom qab lub automatic kho ntawm cov duab yuav pom teeb pom kev zoo cov ces kaum. Qhov no muaj nuj nqi yuav kuj nyob rau ntawm tib lub sij hawm los kho distortion thiab chromatic aberration. Cov neeg nco ntsoov tias tag nrho cov txheej txheem ntau thiab tsawg pab ntawm daim ntawv txiav fab thaum luam loj dluab, vim tsis muaj standard tsis sau raws nkaus Ii lub ratio ntawm 2: 3. Yog li ntawd, qhov tsaus ntuj nti qhov chaw ntawm cov kev yees duab yuav tsum cropped nyob rau hauv txhua txoj kev.

Boke

Boke los yog defocussed duab zoo, lub optics rau f / 4 ntau tshaj tsim nyog, tshwj xeeb tshaj yog nyob rau hauv ntev focal lengths. Unfocused npoo thiab ntse me ntsis ntxhov siab heev, tiam sis nws yog dab tsi rau tej optics.

Lub hardness yog xav nyob rau lub ratio ntawm deb ntawm cov koob yees duab rau cov kev kawm thiab los ntawm cov kwv mus rau tom qab. Thaum nws yog nyob ze zog mus rau lub koob yees duab tshaj lub keeb kwm yav dhau bokeh yuav zoo siab.

Txawm hais tias lens yuav tsis lwv nrog ib tug loj aperture lo ntsiab muag, tshwj xeeb tshaj yog nrog EF 85mm / 1.2L, 24-105mm / 4L, 105 hli sufficiently zoo cais cov kev kawm los ntawm cov keeb kwm yav dhau.

stabilization

Canon hais tias lub xam nrog ntawm daim duab stabilizing muaj nuj nqi yuav ua rau kom lub shutter 3 lub sij hawm. Duab nrog ib tug 24 hli-ncua 1/6 nrog ib tug ncaj tseeb thiab txawm txog 50% ntawm cov kev txhaj tshuaj noj 1/3 nrog cov vam meej. Thaum ib tug deb ntawm 105 hli feem ntau ntawm cov zoo dluab yuav ua tau ntawm 1/13 sec. Ntawm cov hoob kawm, tus ntas yog tsis heev tib yam li hais tias lawv tau noj nrog ib lub kos, tab sis tseeb txaus. Cov nuj nqis yog sib xws nrog lub Canon daim ntawv peb ntxiv pawg. Thaum cov ntaubntawv povthawj siv nrog xws li siab shutter speeds (3.1 mus rau 24 hli, 1/13 hli rau 105) yog ib lub tswv yim mus ntes tsawg kawg yog ob los yog peb ntas, nws yuav zoo heev rau kom qhov uas yuav muaj tau tsawg kawg yog ib ntse duab. Cov tag nrho taw tes feem pua. Cov duab yuav tsum tau ua, zoo dua lub sij hawm mus ua ib tug zoo daim duab.

kub ua ceev heev

Lens Canon 24-105 hli f / 4L tso cai rau koj mus tau ntshiab duab nyob rau hauv tag nrho cov apertures nyob rau hauv lub center ntawm tus ncej, thiab nyob rau hauv lub ces kaum, txawm thaum uas siv cov ncej tas sensor EOS 5 D. Nws muaj tsuas yog ib tug me ntsis nce nyob rau hauv sharpness thaum koj kaw qhov aperture rau f / 5.6, uas qhia tau hais tias yuav ua li cas zoo optics ntawm f / 4. Tej zaum, nws yog tsawg tseeb ntawm 105 hli, tshaj 24 hli, tab sis nws muab txaus sharpness nyob rau hauv cov focal lengths. Lub fact tias cov lens Canon 24-105 / 4L muaj ib tug high precision ntawm qhib wide aperture, yog impressive. Vim hais tias cov aperture piv tsawg ces tsis muaj yuav tsum tau rau ib tug constriction aperture kom tau meej dluab yog ib qho zoo dua.

Lens Canon 24-105 neeg xyuas, muab piv nrog rau cov sharpness ntawm lub optics 24 / 2.8, hu ua sharper nyob rau hauv lub ces kaum, tab sis kuj nrog ib theem siab ntawm vignetting thiab distortion. Sharpness yog muab khaws cia tseg nyob rau hauv qhov chaw, thiab nyob sab txheeb ze apertures optics muab zoo zoo, txawm nyob rau hauv lub sawv.

Nyob rau hauv lub APS-C matrices ua nws zoo txawm zoo li cov ces kaum truncated thiab tag nrho lub cev sensor pom xwb lub hauv paus feem ntawm cov dluab nrog tsawg aberrations.

chromatic aberration

Nyob rau hauv lub tswv yim ntawm cov tswv, cov chromatic aberrations muaj nyob rau hauv xam kev txwv ntawm tag nrho cov focal lengths. Heev me ntsis xim fringing pom nyob rau ntawm cov npoo ntawm cov tag nrho lub cev, tab sis, yog hais tias koj tua nyob rau hauv RAW hom, cov tsis siv neeg kho lus nyob rau hauv DPP yuav kho no, los yog koj muaj peev xwm siv editing software xws li Photoshop. distortion theem ntawm 24 hli piv rau 24mm / 2.8, txawm hais tias tej zaum ib tug me ntsis tsawg.

glare

Cov neeg muab sau tseg tias glare yog zoo tshuaj. Lens Canon 24-105 / 4L nyob rau hauv lub rear ib feem muaj ib lub aperture, uas undoubtedly txhawb rau lawv qis tshaj theem. Thaum tus qauv twb xub nkag tau rau hauv 2005, nws muaj ib tug me me teeb meem nrog cov flares cai los ntawm 24 hli, tab sis nws twb sai sai tshem tawm, thiab qhov no tsis muaj peev xwm tsis cai txij thaum 2006.

Kev koom ua ke nrog EOS

Lub lens muab cov lus qhia txog qhov kev ncua deb rau qhov kev kawm, kom ntseeg tau compatibility nrog flash E-TTL II nyob rau hauv 1D thiab 5D. Thaum siv nrog EX Speedlite nws hau qhov kev ncua deb ntaub ntawv muab xam kev pab cuam yam, uas ho pab txoj kev tshwm sim. Ntxiv mus, tswj ib tug dust- thiab watertight kev koob yees duab, cov lens yog muab nrog ib tug sealing nplhaib nyob rau hauv lub Symptoms taw tes rau cov koob yees duab, thiab ntau cov ntsaws ruaj ruaj thiab tsiv Cheebtsam. Daim ntawv keyboards lub AF hom thiab cov duab stabilization tau hloov nyob rau hauv xws li ib tug txoj kev raws li kom tsis txhob yuam tig los yog tua.

accessories

Optics yog muag nyob rau hauv ib tug txheej txheem lub hnab nrog ib tug coj tus muab. Muaj kuj yog ib tug lens cover Canon 24-105 hli f / 4L. Txawm hais tias hood yog tsis tau niaj hnub yas nrog ib tug ntxhib nto, uas yog npaum li cas zoo dua tiv thaiv nws los ntawm khawb dua glossy yas siv no, raws li tus tswv, nws copes nrog nws ua hauj lwm los mus tiv thaiv glare - pliaj reflections nyob rau hauv cov duab, tshwm sim los ntawm lub hnub, uas yog nyob rau hauv tus ncej, thiab taws kub nnyiab ya - txoj kev poob ntawm zoo ib thiab xim saturation, kuj hu ua ci ntsa iab qhov chaw, uas yog optionally tam sim no nyob rau hauv cov duab.

Hood ua nyob rau hauv tus duab ntawm petals thiab yog li me me uas muab nkag tau mus rau 77-hli ntxaij lim dej. Kev siv ntawm yeej polarizers thiab gradient cov ntxaij lim dej uas yuav tsum tig ua ntej txhua snapshot, tsis ua, raws li cov pem hauv ntej lub caij uas tus ntaus ntawv, thaum zooming los yog tsom yog tsis rotating rau neeg siv tswv yim, ua hauj lwm rau.

Lo ntsiab muag Canon 24-105: txheej txheem cej luam ntawm cov yam ntxwv

Raws li nws cov neeg siv, 24-105 / 4L yog ib tug ntawm qhov zoo tshaj plaws general-lub hom phiaj txheem zoom lo ntsiab muag. Nws yog heev muaj zog, nruab nrog ib qho zoo heev ultrasonic lub cev muaj zog lub tsom nplhaib hom thiab cov duab stabilizer uas tso cai rau ib tug 3-fold nce nyob rau hauv tib lub sij hawm, muab piv rau li ib txwm tej yam kev mob. Maximum aperture yog qhov thoob plaws hauv lub caij nyoog ntawm focal lengths, uas, raws li tus tswv, tsis dhau txaus nyiam ntawm ntau lub, tab sis zoo heev rau 105 hli. Cov neeg siv tsis pom zoo rau kev siv cov optics nrog APS-C-koob yees duab rau cov yog vim li cas hais tias cov zoo ntau yam ntawm 38-168 hli, tsis heev xwb.

Lub lens yog heev ntshiab, thiab nws cov kev daws teeb meem yog superior rau qhov ntau kim 24-70mm / 2.8L. Thaum lub dav-angle zoom qhov teeb meem no yog lub distortion ntawm cov duab thiab cov curvature ntawm lub focal dav hlau (cov lwm focal lengths nyob rau hauv kev txiav txim). Los ze zog mus rau lub ces kaum ntawm lub thav duab nyob rau hauv kev tsom kwm qhov chaw ntawm lub kob bands tshwm sim, tab sis qhov no nyhuv yog tsis raws li hnov yog tus tsom xam. Lub yeej aperture muab ib tug zoo bokeh. Raws li nyob rau hauv tag nrho cov dav-angle lens, lub ces kaum ntawm lub thav duab muaj ib tug duab ntxoov ntxoo, tab sis nws yuav raug txo los ntawm zuj zus lawm lub aperture los yog nyob rau hauv software (nyob rau hauv cov ntaub ntawv no tes).

Txawm hais tias lens yog me me thiab khaub-ncaws nyias, nws yog ntau npaum li cas yooj yim tshaj hauv lub loj thiab hnyav zog 24-70mm / 2.8L.

Long-term cov neeg uas tau ua ib tug ntau ntawm cov duab, txaus siab heev rau lub lens. Qhov no yog ib tug tiag tiag ntau yam optics, thiab nws yuav siv sij hawm ib qho chaw twg nyob rau hauv qhov. Rau kev tswv pom zoo kom siv ntawm 24-70 / 2.8L vim hais tias ntawm nws ntau nqaim kom pom tseeb ntau yam, uas muaj ib tug loj aperture thiab muab tswv yim ntau yam kev xaiv. Raws li tus tswv, tus lens Canon 24-105 (nqi - 999 dollars US) tsim nyog cov nyiaj, tab sis cov neeg muas zaub yuav tsum txiav txim siab li cas fits nws zoo tshaj plaws. Kev xaiv f / 2.8 ntawm qhov luaj li cas thiab tus nqi ntawm cov EF 24-105 / 4L yuav zoo meej, tab sis cov chaw tsim tshuaj paus muaj xws optics tsis.

kev txiav txim

Canon EF 24-105mm / f 4L YOG USM - ib tug tiag tiag zoo lens. Raws li tus tswv, rau ib tug tag nrho-scale cov SLR koob yees duab ntawm nws cov zoom ntau yog zoo tagnrho rau cov general-lub hom phiaj optics, nrog rau nws cov kev siv rau kev ua hauj lwm thiab portraits. Lub lens yuav tua nyob rau qhib wide aperture thiab ua heev ntshiab dluab thiab stabilization ntawm 3-fold nce pub ceev. Clear duab yog tau thaum mus txog 3.1 vib nas this ntawm 24 hli thiab 1/12 sec ntawm 105 hli. Me ntsis thiaj li tag nrho cov tswv yim ntawm ib tug hnov li vignetting thiab distortion, tshwj xeeb tshaj yog nyob rau ntawm lub 24 hli. Qhov no yuav muab tau yooj yim kho cov post-ua, tab sis nws yog ib txwm zoo thaum xws li ib tug yuav tsum tau tshwm sim. Yog hais tias lub lens "Canon" yog tsim nyob rau hauv thiaj li yuav tshem tawm vignetting thiab distortion, ces nws tej zaum yuav tau npaum li cas loj, cev ntas thiab kim kim thiab yuav tau poob ib co focal lengths. Yog hais tias yog li ntawd, ces tus dabtsi them tawm.

Nyob rau hauv nepolnoformatnyh DSLR koob yees duab focal ntev lens Canon 24-105 / 4L sib npaug rau 38-168 hli ncej tas lub koob yees duab, yog li tias tus neeg poob ntau pab them nqi. Txawm li cas los, cov duab zoo siab heev, raws li cov npoo thiab cov ces kaum ntawm lub thav duab, qhov twg vignetting thiab aberration txawj yog clipped. Yog hais tias koj muaj ib tug Canon EF 24-105 lens paired nrog 10-22 / 3.5-4.5, nws yuav muab kev pab them nqi 10-105 hli.