Pentax K- r vs Pentax K-x
Pentax K-x thiab K-r yog ob theem nkag DSLR lub koob yees duab tsim los ntawm Pentax. Ob lub koob yees duab no yog tus nqi qis heev, thiab tuaj yeem yog qhov kev xaiv zoo rau cov kws yees duab uas xav txav los ntawm taw tes thiab tua lub koob yees duab mus rau DSLR ntiaj teb. Ob lub koob yees duab no yuav luag zoo sib xws hauv ntau yam thiab txawm tias lub cev. Tab sis muaj qee qhov sib txawv ntawm ob tus qauv no. Kab lus no yuav sim los sib piv cov yam ntxwv tseem ceeb thiab sib tham txog qhov sib txawv ntawm Pentax K-x thiab Pentax K-r camerax.
Lub tswv yim xaiv lub koob yees duab Digital
Kev daws teeb meem ntawm lub koob yees duab
Kev daws teeb meem ntawm lub koob yees duab yog ib qho ntawm cov yam ntxwv tseem ceeb uas tus neeg siv yuav tsum saib thaum yuav lub koob yees duab. Qhov no tseem hu ua tus nqi megapixel. Ob leeg Pentax K-x thiab Pentax K-r muaj 23.6 x 15.8 mm CMOS sensor nrog 12.4 megapixels. Hauv kev txiav txim siab, ob qho K-x thiab K-r tuaj yeem suav tias yog sib npaug. Ob lub koob yees duab no kuj muaj cov lus ceeb toom plua plav thiab tshem tawm txoj kev.
YISO Performance
ISO tus nqi ntau kuj yog qhov tseem ceeb. ISO tus nqi ntawm lub sensor txhais tau tias, ntau npaum li cas rhiab heev lub sensor yog rau ib tug muab quantum ntawm lub teeb. Cov yeeb yam no tseem ceeb heev hauv kev txhaj tshuaj hmo ntuj thiab kev ua kis las thiab kev thaij duab thaij duab. Tab sis nce tus nqi ISO ua rau lub suab nrov hauv daim duab. Lub Pentax K-x nta ISO ntau yam ntawm 200 txog 6400 nrog kev teeb tsa txuas ntxiv ntawm ISO 100 thiab ISO 12800. Lub K-r nta ib qho txiaj ntsig ntau dua ISO qhov tseem ceeb ntawm 200 txog 12800 ISO, thiab nthuav tau los ntawm 100 txog 25600 ISO. Hauv kev nkag siab ntawm ISO rhiab heev, K-r yog qhov kev xaiv zoo dua li K-x.
Frames Per Second Rate
Frames ib tus nqi thib ob lossis feem ntau hu ua FPS tus nqi kuj yog ib qho tseem ceeb thaum nws los txog rau kev ua kis las, tsiaj qus thiab kev yees duab. FPS tus nqi txhais tau hais tias, tus lej nruab nrab ntawm cov duab lub koob yees duab tuaj yeem tua ib ob ntawm ib qho chaw. Pentax lub koob yees duab muaj npe nrov rau lawv cov thav ntawv siab ib ntus dua li lwm lub koob yees duab DSLR. K-r muaj qhov zoo tshaj plaws fps tus nqi ntawm 6 thav duab ib ob mus txog 12 RAW duab lossis 25 JPEG duab. K-x nta qhov siab tshaj qhov nruab nrab 4.7 fps tus nqi, thiab tuaj yeem tua txog 5 RAW lossis 17 JPEG cov duab. Nyob rau hauv cov ntaub ntawv ntawm fps tus nqi, tus K-r saum lub K-x.
Shutter Lag thiab Lub Sijhawm Rov Qab
A DSLR yuav tsis thaij duab sai li sai tau thaum lub kaw lus raug nias. Nyob rau hauv feem ntau cov xwm txheej, nws pib tsom thiab nws pib qhov ntsuas dawb yuav tshwm sim tom qab lub pob nyem. Yog li ntawd, muaj lub sijhawm sib txawv ntawm cov xovxwm thiab cov duab tiag tiag. Qhov no yog lub npe hu ua shutter lag ntawm lub koob yees duab. Ob lub koob yees duab no muaj lub kaw lus me me heev piv rau lwm cov qauv.
Number of Autofocus Points
Autofocus cov ntsiab lus lossis AF cov ntsiab lus yog cov ntsiab lus uas tau tsim rau hauv lub cim xeeb ntawm lub koob yees duab. Yog tias muaj qhov tseem ceeb rau qhov AF point, lub koob yees duab yuav siv nws lub peev xwm autofocus los tsom lub lens rau cov khoom hauv qhov muab AF point. Pentax K-r nta 11 point autofocus system nrog SAFOX IX autofocus system, thaum K-x kuj tseem muaj 11 point autofocus system, tab sis nrog SAFOX VIII system, uas yog qis dua li SAFOX IX.
High Definition Movie Recording
Cov yeeb yaj kiab siab lossis HD yeeb yaj kiab sib haum rau cov yeeb yaj kiab uas muaj kev daws teeb meem siab dua li cov qauv txhais cov yeeb yaj kiab. HD movie hom yog 720p thiab 1080p. 720p muaj qhov ntev ntawm 1280 × 720 pixels, thaum lub 1080p muaj qhov ntev ntawm 1920 × 1080 pixels. Ob lub koob yees duab no nta 720p HD video kaw, tab sis K-r muaj 25 fps movie ceev, thaum K-x muaj 24 fps movie ceev.
Nyhav thiab Dimensions
Pentax K-r muaj qhov ntev ntawm 125mm x 97mm x 68mm nrog qhov hnyav ntawm 515 grams; Pentax K-x muaj qhov ntev ntawm 122.5mm x 91.5mm x 67.5mm thiab qhov hnyav ntawm 515 grams. Ob qho qauv no muaj qhov hnyav tib yam, tab sis K-r tsuas yog me ntsis ntau dua li K-x.
Cia nruab nrab thiab muaj peev xwm
Nyob hauv DSLR koob yees duab, lub cim xeeb inbuilt yuav luag negligible. Yuav tsum muaj cov cuab yeej cia sab nraud los tuav cov duab. Ob qho qauv no tsuas tuaj yeem sau SD thiab SDHC daim npav. SDXC daim npav tsis txaus siab nyob rau hauv ob qho tib si ntawm cov qauv no.
Battery Life
Lub roj teeb lub neej ntawm lub koob yees duab tseem ceeb heev. Nws qhia peb txog kwv yees tus naj npawb ntawm cov duab uas tuaj yeem coj mus rau hauv ib qho nqi. Qhov no yog qhov tseem ceeb heev hauv kev yees duab sab nraum zoov qhov twg lub hwj chim tsis yooj yim. Pentax K-r muaj roj teeb lub neej txog li 1000 daim duab thiab Pentax K-x muaj roj teeb lub neej txog li 1100 daim duab. Hauv kev nkag siab ntawm roj teeb lub neej, K-r qauv yeej swb los ntawm K-x qauv.
Live Saib thiab yoog raws ntawm cov zaub
Live saib yog lub peev xwm los siv lub LCD ua tus saib pom. Qhov no tuaj yeem yooj yim vim tias LCD muab qhov pom tseeb ntawm daim duab hauv cov xim zoo. Ob lub koob yees duab no tau pom nyob tsis muaj qhov hloov pauv tau.
Zaj lus
Hauv chav haujlwm ntawm ISO kev ua tau zoo, fps tus nqi, thiab muaj peev xwm autofocus, K-r ua tau zoo rau K-x qauv. Nyob rau hauv rooj plaub ntawm qhov ntev thiab roj teeb lub neej, tus qauv K-x zoo dua me ntsis. Txawm li cas los xij Pentax K-r yog tus qauv zoo dua li K-x qauv hauv kev ua tau zoo tag nrho.
