Thaum Pentax qhia K100D hauv xyoo 2006, lub koob yees duab tau touted raws li tus nqi pheej yig, tag nrho-featured, thiab cov neeg siv-phooj ywg DSLR. Ib xyoos tom qab, thaum cov chaw tsim khoom tshaj tawm qhov kev tso tawm ntawm Pentax K100D Super, cov cuab yeej tau zoo ib yam. Yog li dab tsi yog qhov txawv? Yog tias koj saib ze, tus qauv tshiab tau hloov pauv cov plua plav tshem tawm, thiab tam sim no tau sib xws nrog SDM lo ntsiab muag uas muaj autofocus ceev thiab ntsiag to.
Ntxiv rau ob qhov kev ntxiv tshiab no, Pentax K100D Super khaws cia tib lub compact loj, yooj yim ntawm kev siv, siab ISO ceev thiab cov duab stabilization mechanism kom tshem tawm qhov muag plooj. Txawm hais tias tus qauv tau nruab nrog 6-megapixel sensor thaum lwm lub DSLRs twb tau tsim 10-megapixel daws teeb meem, nws tus nqi qis ntawm $ 519 thiab nws qhov zoo nkauj tau teeb tsa ntau dua li tsim rau nws.
Pentax K100D Tsim Tshuaj Ntsuam Xyuas
Txawm tias tus nqi qis, nws tseem ceeb heev uas yuav tsum nco ntsoov tias qhov no tsis yogcompact point-and-shoot lub koob yees duab. K100D yog qhov nkag-theem DSLR, txhais tau tias nws yog tsom rau cov neeg uas xav tau kev tswj hwm ntau dua thiab xav nkag mus rau ntau hom lo ntsiab muag. Tib lub sijhawm, Pentax paub txog kev ua kom yooj yim thiab ua haujlwm zoo uas tuaj yeem siv los ntawm cov kws yees duab nrog tsuas yog kev paub nrog lub koob yees duab compact.
Ntxiv rau kev ua haujlwm siab, lub cuab yeej muaj lwm yam zoo. Thiab lub peev xwm los hloov lo ntsiab muag yog tej zaum qhov sib txawv loj tshaj ntawm SLR thiab cov koob yees duab compact. Lub K100D los nrog Pentax 18-55mm f3.5/5.6 AL optic tab sis kuj muaj yam tsis muaj nws, tso cai rau ntau yam khoom. Ib qho ntawm qhov zoo tshaj plaws ntawm Pentax DSLRs yog tias lawv yog 100% sib xws nrog txhua lub lens uas lawv tau ua. KAF2 mount haum txhua yam los ntawm cov phau ntawv qub optics rau autofocus optics tshiab. Tsis muaj lwm cov chaw tsim khoom muab qhov kev sib tw rov qab no.
Qhov tseem ceeb tshaj plaws yog qhov tseeb tias txhua tus optics tau txais lawv txhais tes ntawm qhov tsim-hauv co them nyiaj rau tib lub sijhawm. Lwm cov tuam txhab xws li Canon thiab Nikon muag IS lo ntsiab muag rau ntau ntxiv, thiab Pentax txawm muaj 40-xyoo-laus optics uas ua tau zoo dua. Yog li ntawd, cov duab zoo li ntse dua ua ntej.
Pentax K100D Specifications
Lub koob yees duab specifications yog raws li nram no:
- Sensor: CCD 6, 31 MP.
- ISO ntau: 200-3200.
- Shutter ceev: 30–1/4000 s.
- Focus: 11-point AF.
- Chamber qhov ntev: 129x93x70 mm.
- Nyhav: 570g, nrog cov roj teeb teeb tsa, daim npav nco - txog 660g
- K100D ntes cov duab tseem nyob hauv ib qho ntawm plaub theem zoo: tsis muaj RAW, zoo, ib txwm, lossis JPEG yooj yim.
- Frame loj tuaj yeem xaiv los ntawm peb txoj kev xaiv: 6 MP (3008x2000), 4 MP (2400x1600) thiab 1.5 MP (1536x1024).
- Lub koob yees duab txais SD thiab SDHC nco daim npav.
- Includes DA 18-55mm lens, USB thiab video cable, pluaj, sync cap, eyecup (pre-installed), bayonet cap, viewfinder cap, plaub AA alkaline roj teeb, thiab software CD. Ib qho kev xaiv fais fab adapter rau Pentax K100D kuj muaj.
Nta thiab Kev Sib Tw
Lub koob yees duab lub cev, ua tiav nrog cov khoom siv matte dub resin composite, yog ua los ntawm cov hlau muaj zog, uas ua rau lub koob yees duab sib sib zog nqus. Cov khoom, zoo, haum thiab kev pab them nqi yog zoo heev. Raws li cov neeg siv tshuaj xyuas, ergonomic K100D yog tus phooj ywg zoo tshaj plaws ntawm tus kws yees duab - tag nrho cov tswj tau zoo kawg nkaus. Lawv nyiam tias lub lens tso qhov tseem ceeb nyob rau tib sab ntawm lub koob yees duab li lub khawm kaw. Qhov no txhais tau hais tias tus ntiv tes me ntawm sab tes xis siv tau. Qhov sib npaug ntawm lub koob yees duab nrog cov txheej txheem lo ntsiab muag ntsia tau zoo heev. Ua tsaug rau nws lub teeb yuag thiabtuav zoo heev ntawm tus kov, txawm tias hnyav dua lo ntsiab muag yog yooj yim los tswj. Cov tswv uas tau tuav lub koob yees duab hauv lawv txhais tes rau 8 teev nco ntsoov tias nws tsis yooj yim rau kev ua haujlwm nrog nws, txawm tias muaj cov khoom siv loj loj xws li Sigma 24-70 mm f2.8.
Kev tua
Auto Pict hom tso cai rau koj tua tau thaum lub koob yees duab txiav txim siab qhov tsim nyog raws li ib puag ncig. Lub koob yees duab tso nws mus txog rau tus kws yees duab xaiv ib qho ntawm ntau txoj kev xaiv rau flash, thav duab loj thiab zoo, ISO rhiab heev thiab tsom txoj kev, tab sis tag nrho lwm yam tsis yog xam los ntawm lub cuab yeej nws tus kheej. Txawm hais tias nrog rau qhov chaw teeb tsa, tus kws yees duab tsis muaj kev paub txog amateur yuav tsum tsis txhob txhawj txog lwm yam tshaj li kev tsom thiab ntes cov duab. Nws pib tua hom ua haujlwm zoo ntawm kev ntes ntau yam kev kawm, tab sis lub ntsiab lus ntawm DSLR yog tias nws txawv kiag li ntawm ib qho kev cog lus. DSLRs yog rau cov uas xav tswj hwm lawv tus kheej txhaj tshuaj.
Cov lus qhia rau kev xaiv qhov chaw zoo
Raws li lub teeb pom kev, kev ncua deb thiab kev txav ntawm qhov kev kawm, nws muaj peev xwm tuaj yeem xaiv qhov chaw zoo rau Pentax K100D. Cov lus piav qhia ntawm tus txheej txheem yog raws li nram no:
- Teem lub hom hu rau Auto Pict. Lub koob yees duab yuav xaiv txoj hauv kev zoo tshaj plaws los ntes cov duab.
- Teem lub hom phiaj tsom mus rau AF.
- Siv lub viewfinder los taw tes lub koob yees duab ntawm lub ntsiab lus. Nyob rau tib lub sijhawm, optics tuaj yeem hloov nws qhov pomdimensions.
- Tso cov ntsiab lus hauv tus ncej thiab nias lub khawm kaw ib nrab. Lub AF system yuav pib ua haujlwm, qhov taw qhia uas yuav qhia qhov ua tiav ntawm kev tsom. Lub teeb nyem built-in yuav pop tuaj raws li xav tau.
- Nias lub khawm kaw kom tag. Shooting tiav.
- Koj tuaj yeem siv lub vijtsam LCD los tshuaj xyuas cov duab. Tom qab cov duab tau muab tso tawm, nws yuav tshwm rau ntawm qhov screen rau 1 s. Txawm li cas los xij, nws tuaj yeem raug tshem tawm los ntawm nias lub pob sib txuas ntawm lub vaj huam sib luag tom qab.
hom kev tua
Ntxiv rau Auto Pict, Pentax K100D muab rau 6 hom duab preset rau cov xwm txheej tshwj xeeb: duab, toj roob hauv pes, macro, kev hloov pauv, hmo ntuj portrait thiab tsis muaj flash. Lub koob yees duab optimizes chaw rau txawv scenes thiab, zoo li nws pib, tus neeg siv muaj peev xwm los teem ib co thav duab tsis nyob ntawm seb lub scene xaiv. Tsis tas li ntawd, muaj 8 hom ntxiv rau kev tua thaum hmo ntuj, nthwv dej thiab daus, ntawv nyeem, hnub poob, menyuam yaus, tsiaj, taws tswm ciab thiab tsev cia puav pheej.
Txoj kev nthuav tawm thiab Aperture Options
Thaum kawg, lub koob yees duab tuaj yeem ua haujlwm hauv Txoj Haujlwm Hom (P), Aperture Priority (Av), Shutter Priority (Tv), thiab Los Ntawm Txhais Tes Exposure (M). Cov no yog cov yam ntxwv ntawm txhua lub koob yees duab DSLR. Tsis tas li ntawd, qhov teeb tsa Bulb (B) tso cai rau koj los tswj lub sijhawm ntev npaum li cas lub shutter qhib rau qhov ntev heev. Cov qauv ua haujlwm raws li hauv qab no:
- P: Lub koob yees duab teeb tsa qhov nrawm thiab aperturentawm tus kheej. Tus neeg siv muaj peev xwm hloov nws cov chaw, suav nrog kev xaiv ntawm hom flash, kho qhov raug lub koob yees duab thiab flash, hom metering, autofocus, shooting, ISO rhiab heev, dawb tshuav, daim duab loj thiab zoo. Tib yam tsis muaj nyob hauv TV, Av, M thiab B hom.
- Tv: Lub shutter ceev yog teem los ntawm tus neeg siv thiab lub aperture yog teem los ntawm lub koob yees duab.
- Av: Tus kws yees duab kho qhov aperture thiab qhov raug raug kho tau.
- M: Lub shutter ceev thiab aperture yog teem los ntawm tus neeg siv.
- B: Ib yam li M, tshwj tsis yog lub kaw lus tseem qhib thaum lub khawm kaw.
Kev them nyiaj raug mob
Qhov kev ua haujlwm no tso cai rau koj hloov pauv qhov cuam tshuam hauv ± 2 EV hauv kev nce ntxiv ntawm 1/3 EV hauv P, TV thiab Av hom nkaus xwb. Qhov zoo tshaj plaws nrog qhov nruab nrab qhov hnyav lossis qhov chaw ntsuas qhov ntsuas. Kuj tseem muaj qhov cuam tshuam kev cuam tshuam rau kev tua ntau qhov kev nthuav tawm ntawm qhov sib txawv ntawm qhov sib txawv: qis dua, tus qauv, thiab tshaj tawm.
Kev ntsuas qhov ntsuas tau
Los ntawm lub neej ntawd, kev ntsuas hauv K100D Super yog ua los ntawm 16-ntu ntau thaj tsam. Center-weighted thiab qhov chaw xaiv muaj. Ntau thaj chaw photometry feem ntau ua haujlwm tau zoo, tab sis qee zaus nco cov ntsiab lus hauv qhov sib txawv siab xws li lub ntuj ci lossis dej hiav txwv nrog lub hnub pom hauv nws. Txawm li cas los xij, cov kev tsis txaus no muaj nyob hauv lwm lub koob yees duab digital. High contrast scenes nrog ntau cov teeb pom kev zoo tsim tau zoo dua.
Focus
Lub Pentax K100D siv 11-point AF system, thiab tus neeg siv kuj tuaj yeem xaiv thaj chaw tsom rau qhov tsis siv neeg lossis phau ntawv tsom ntawm daim duab. Ntxiv rau qhov hloov pauv nyob ze ntawm lub lens mount, hom kev tsom tuaj yeem tswj tau siv lub koob yees duab cov ntawv qhia zaub mov. Muaj ob txoj kev xaiv AF: ib leeg (AF-S) thiab txuas ntxiv (AF-C). Thawj qhov yog rau cov ntsiab lus nyob ruaj khov thiab thaiv qhov ua kom pom tseeb los ntawm kev hloov pauv thaum lub khawm kaw tau nias ib nrab. Qhov thib ob yog siv thaum tua cov ntsiab lus txav thiab tsom mus txuas ntxiv thaum lub kaw lus yog ib nrab nias.
Tsis zoo li feem ntau thaj tsam AF SLR koob yees duab uas siv ib lossis ob lub ntsuas hluav taws xob uas ua haujlwm ob qho tib si ntsug thiab kab rov tav, SAFOX VIII qhov system suav nrog 9 cov sensors, uas ua rau muaj qhov tseeb dua ntawm nws txoj haujlwm.
Focus ceev Pentax K100D Super cov neeg siv tshuaj xyuas hu nws ceev txaus thiab ywj siab ntawm lub lens ntsia. Lub AF sensor kuj txiav txim siab seb phau ntawv tsom xam puas yog. Txawm hais tias tsis yog tus qauv nrawm tshaj plaws hauv Pentax kab, nws tsom ze li sai tau raws li qhov siab-kawg K10D.
saib thiab saib
Pentax K100D yog nruab nrog 2.5 210k-dot LCD zaub nrog kho qhov ci. Lub vijtsam muaj qhov dav 140-degree ntsug thiab kab rov tav saib lub kaum ntse ntse, yog li cov duab tuaj yeem pom rau ntau tus neeg tib lub sijhawm. Kuj12x magnification ntawm cov duab yog ua tau. Cov zaub tsis ua haujlwm hauv hom saib nyob - nws tsis tuaj yeem siv los sau cov duab. Rau qhov no, lub teeb pom kev zoo thiab loj txaus nrog 0.85x magnification thiab 96% thav duab npog yog siv. Qhov no zoo dua li feem ntau nkag-theem DSLRs.
Flash
Lub teeb tsa built-in pops los ntawm sab saum toj ntawm lub koob yees duab lub cev los ntawm nias lub pob nyob rau sab nraum qab ntawm Pentax K100D. Cov yam ntxwv ntawm lub teeb tso cai rau koj thaij duab ntawm qhov deb ntawm 0.7-4 m ntawm qhov kev kawm, nyob ntawm ISO thiab aperture chaw. Muaj 4 hom flash muaj: pib, phau ntawv thiab txo qhov muag liab rau txhua tus.
Raws li kev tshuaj xyuas ntawm cov tswv, nws tsuas yog qhov tsis zoo yog tias qhov siab tshaj plaws synchronization ceev yog 1/180 s. Qhov no yog qhov tsim nyog rau kev tua nyob rau hauv lub teeb qis, thiab siv nws thaum nruab hnub raws li lub teeb nyem feem ntau xav tau shutter speeds ntawm 1/500s lossis qeeb dua. Yog li ntawd, koj yuav tsum teem lub aperture rau f22 los yog ntau tshaj, uas yog tsis zoo tagnrho.
xim
Nws muaj ob lub suab duab yooj yim: ci thiab ntuj, nrog rau thawj zaug yog lub neej ntawd. Raws li cov neeg siv kev tawm tswv yim, qhov teeb tsa no ua rau cov xim oversaturated, overexposure, thiab graininess. Vim li no, lawv pom zoo kom teeb lub koob yees duab rau lub suab nrov.
Lub koob yees duab Pentax K100D npog Adobe RGB thiab sRGB xim chaw. Thaum yav tas los muab qhov dav xim gamut,sRGB yog qhov tsim nyog rau cov kws yees duab novice vim nws ua rau cov duab zoo li ci dua ntawm qhov screen thiab luam tawm. Cov xim yog saturated, tshwj xeeb tshaj yog nyob rau hauv liab thiab ntsuab qhov chaw ntawm lub spectrum. Yuav kom cov duab tsis txhob oversaturated, lawv yuav tsum tau me ntsis underexposed. Rau lub hom phiaj no, cov neeg siv tau teeb tsa cov txiaj ntsig cuam tshuam rau -0.3 lossis -0.7 EV.
Lub koob yees duab cov ntawv qhia zaub mov tseem tso cai rau koj los kho qhov saturation, sharpness thiab sib piv ntawm daim duab.
Lim sensitivity
Auto ISO yog lub neej ntawd nyob rau hauv nws pib thiab scene shooting hom thiab teev cov ISO rhiab heev ntawm 200 thiab 3200 raws li xav tau. ISO 200 yog lub neej ntawd hauv P, Tv, Av, thiab M hom yog tias ISO tsis tau xaiv yav dhau los. Lub teeb rhiab heev tuaj yeem teeb tsa manually los ntawm kev xaiv ib qho ntawm cov txiaj ntsig hauv qab no: 200, 400, 800, 1600 lossis 3200.
White balance
Auto dawb tshuav yog teem los ntawm lub neej ntawd rau tag nrho Pentax K100D shooting hom. Tus neeg siv kuj tuaj yeem xaiv qhov chaw rau cov khoom siv hluav taws xob, fluorescent, ncaj qha tshav ntuj, nyem, huab, duab ntxoov ntxoo, lossis teeb rau cov khoom siv dawb lossis grey.
roj teeb lub neej
Pentax yog ib qho ntawm ob peb lub tuam txhab ntawm SLR koob yees duab uas tso cai rau koj los nruab AA roj teeb. Qhov txiaj ntsig loj tshaj plaws ntawm qhov kev daws teeb meem no yog lub peev xwm siv thiabrechargeable roj teeb, thiab cov roj teeb txheem uas tuaj yeem yuav tau nyob txhua qhov chaw, txawm tias nyob hauv ib lub zos me hauv txawv teb chaws. Tsis tas li ntawd, K100D tuaj yeem siv los ntawm CR-V3 hom roj teeb lithium lub neej ntev. Lub koob yees duab tuaj yeem ua 1,480 txhaj tshuaj nrog autofocus, duab stabilization, tshem tawm plua plav ntawm txhua qhov pib thiab siv tsis sib xws ntawm cov teeb tsa hauv thiab sab nraud.
yam ntxwv kho qhov muag
Qhov suav nrog 18-55mm lens yog qhov zoo heev. Lub optics nthuav tawm me ntsis vignetting (dub kaum) ntawm lub kaum sab xis dav (18mm), tab sis yog qhov tsim nyog ntse hla tus ncej. Lub lens raug kev txom nyem los ntawm me ntsis chim distortion ntawm lub kaum sab xis dav thiab pincushion distortion ntawm telephoto. Txawm hais tias 6-megapixel daws teeb meem, cov duab tau nthuav dav thiab nkig txawm tias 100% zoom. Muaj cov paj liab liab nyob ib ncig ntawm cov npoo (ntawm cov ciam teb siab sib txawv), tab sis lawv tsuas pom pom ntawm 2x magnification.
Reviews
Pentax K100D cov neeg siv tshuaj xyuas hu nws zoo li nws tus tij laug K10D dua li lwm lub koob yees duab SLR pob nyiaj siv. Lub focusing ceev ntawm lub koob yees duab yog hais txog tib yam. Ntawm 2.7 fps nruam tua, lub koob yees duab kev ua tau zoo yog qhov zoo heev, tab sis qhov tsis zoo rau 3 RAW lossis 5 JPEG cov duab thiab qhov sib txuas qeeb qeeb ntawm lub teeb tsa hauv lub teeb ua rau txwv lub koob yees duab. Raws li kev txheeb xyuas, cov duab zoo yog ib qho zoo tshaj plaws uas koj tuaj yeem pom ntawm cov khoom siv nrog 6-megapixel sensor, thiab ISO suab nrov yog txwv tsis pub vim qhov no. Tag nrho compatibility nrogtag nrho cov chaw tsim khoom lub lo ntsiab muag txhais tau tias yuav luag tsis muaj sijhawm los nthuav dav thiab loj hlob koj cov txuj ci kev yees duab. Cov xim muaj nplua nuj txawm tias thaum lub suab duab tau teeb tsa lawm. Built-in stabilization thiab tshem tawm plua plav txhais tau hais tias lub koob yees duab no yog qhov txaus ntshai tag nrho. Cov neeg pib tshiab uas nyuam qhuav hloov los ntawm lub koob yees duab compact, nrog cov qauv tsis siv neeg thiab scene, muaj kev ntseeg siab heev nrog nws.
Muab tus nqi, K100D Super yog qhov kev nkag mus rau qib zoo.
