Pentax K100D: nta thiab xyuas

Nyob rau hauv 2006, thaum lub tuam txhab "Pentax" hais Lub K100D, lub koob yees duab tau advertised li ib tug pheej yig, full-featured thiab cov neeg siv-phooj ywg cov SLR koob yees duab. Ib xyoo tom qab, thaum lub chaw tsim tshuaj paus tshaj tawm qhov kev tso tawm ntawm Pentax K100D Super, ntaus yus zoo li ntawd. Yog li ntawd yog dab tsi yog qhov txawv? Yog hais tias koj saib, koj muaj ib tug newer qauv tau hloov lub plua plav tawm system, thiab nws tau ua tau tshaj SDM-lens, muaj ib tug ceev, nyob ntsiag to autofocus.

Nyob rau hauv tas li ntawd mus rau cov ob tug tshiab ntxiv, Pentax K100D Super txawv nyob rau hauv tib lub compact loj, me, yooj yim ntawm kev siv, ib tug siab ISO rhiab heev thiab duab stabilization mechanism rau cov tshem tawm ntawm qhov muag plooj dluab. Txawm tias tus qauv yog txawm peem rau nrog ib tug 6-megapixel sensor, thaum tus so DSLR-koob yees duab tau tsim nrog ib tug daws teeb meem ntawm 10 megapixel thiab nws tsis muaj nqi nyob rau hauv lub $ 519, thiab ib tug impressive array ntawm functionality yog ntau tshaj li ua los rau nws.

Pentax K100D: tsim xyuas

Dua li ntawm qhov kuj tsis tshua muaj nqi, nws yog ib qho tseem ceeb los ua tim nyob rau hauv lub siab hais tias qhov no yog tsis yog ib tug compact koob yees duab xws li "taw tes thiab tua". K100D cov SLR koob yees duab yog ib qho kev nkag-qib, piv txwv li. E. Nws yog aimed rau cov neeg uas xav kom tau tshaj kev tswj thiab xav kom muaj kev nkag tau mus rau ib tug dav ntau yam ntawm lo ntsiab muag. Nyob rau tib lub sij hawm, lub tuam txhab Pentax yog lub npe hu raws li ib tug chaw tsim tshuaj paus ntawm nyiam thiab haumxeeb pab kiag li lawm uas yuav siv tau pab txog hais tias muaj tsuas kev nrog compact koob yees duab.

Nyob rau hauv tas li ntawd mus kawm siab, muaj cov apparatus thiab lwm yam zoo. Thiab cov muaj peev xwm mus hloov cov optics yog tej zaum qhov loj tshaj qhov sib txawv ntawm SLR koob yees duab los ntawm compact. K100D yog txawm peem rau nrog optics Pentax 18-55mm f3.5 / 5.6 AL, tab sis yog tseem muag tsis muaj nws, uas ib tug ntau ntawm cov proposals. Ib tug ntawm cov biggest zoo ntawm SLR koob yees duab ntawm "Pentax" lus dag nyob rau hauv lub fact tias lawv yog 100% tshaj tag nrho cov lo ntsiab muag uas tau tsim nws. Vim KAF2 fastening fits tag nrho - los ntawm cov laus optics nrog phau ntawv tswj mus rau ib tug tshiab autofocus. Tsis muaj lwm yam chaw tsim tshuaj paus tsis muab cov rov qab compatibility.

Txawm ntau ceeb yog qhov tseeb hais tias tag nrho cov optics nyob rau tib lub sij hawm nyob rau hauv nws pov tseg ib co nyiaj system ua. Lwm yam manufacturers, xws li Canon thiab lub Nikon, muag lo ntsiab muag nrog duab stabilization yog ntau npaum li cas kim, thaum lub sij hawm Pentax txawm 40-xyoo-laus ua hauj lwm zoo dua optics. Raws li ib tug tshwm sim, dluab saib npaum li cas sharper tshaj ua ntej.

Pentax K100D: kev specifications

Lub koob yees duab specifications yog raws li nram no:

• Sensor: CCD 6,31 Mn.
• ISO ntau: 200-3200.
• Shutter ceev: 30-1 / 4000 sec.
• Tsom: 11-point AF.
• Chamber qhov ntev: 129h93h70 hli.
• Yuag: 570 g nrog roj teeb pob ntsia, lub cim xeeb card - txog 660
• K100D captures tseem dluab nyob rau hauv ib yam ntawm cov plaub theem ntawm zoo: uncompressed RAW, siab, ib txwm los yog lub hauv paus nyob rau hauv JPEG hom.
• Ncej loj zaum yuav raug xaiv los ntawm peb cov kev xaiv: 6 Mn (3008h2000) 4, Mn (2400h1600) thiab 1.5 M (1536h1024).
• Lub koob yees duab txais SD nco phaib thiab SDHC.
• Xws li lens DA 18-55 hli, USB cable thiab video, pluaj, cover rau Sync, lub qhov muag khob (twb ntsia), bayonet cap, eyepiece cover, plaub AA alkaline roj teeb thiab CD nrog software. Muaj ib hom kev hwj chim adapter rau cov koob yees duab Pentax K100D no kuj muaj nyob.

Nta thiab los ua ke

Lub koob yees duab lub cev, ib tug dub matte tiav polymer puas khoom yog ua los ntawm check hlau ncej uas muab ib lub teeb yuag koob yees duab. Khoom zoo, zoo heev haum thiab kev pab them nqi. Raws li siv tswv yim, ergonomic K100D yog qhov zoo tshaj plaws cov phooj ywg ntawm tus kws yees duab - tag nrho cov ntawm lwm yam uas yog positioned txig. Lawv nyiam lub fact tias cov lens tso tawm khawm yog nyob rau ntawm ib sab ntawm lub koob yees duab nrog cov shutter khawm. Qhov no txhais tau tias koj yuav siv cov me ntiv tes ntawm nws sab tes xis. Tshuav fotoapparta nrog tus tsim cov khoom siv lens yog heev zoo. Nrog nws cov teeb yuag thiab zoo heev adhesion lis txawm cev ntas lo ntsiab muag tshuaj tau yooj yim. Cov tswv kom lub koob yees duab nyob rau hauv nws ob txhais tes rau 8 teev, nco ntsoov hais tias nws tsis yog nyuaj rau ua hauj lwm nrog, txawm nrog xws li ib tug loj heev optics li Sigma 24-70 hli f2.8.

daim ntawv ntsuam xyuas

Pib Pict hom tso cai automatic shooting thaum lub koob yees duab nws tus kheej txiav txim rau qhov tsim nyog chaw raws li cov kev mob ambient. Lub koob yees duab yees duab muaj txoj cai xaiv ib qho ntawm ob peb flash kev xaiv, ncej loj thiab zoo, ISO ceev, ua kom pom tseeb txoj kev, tab sis tag nrho cov lwm yam tsis yog xam los ntawm cov ntaus ntawv. Txawm nrog lub neej ntawd chaw inexperienced pib xyaum ua kws yees duab yuav tsis txhawj txog dab tsi tsuas yog lub crosstalk thiab cov duab capture. tsis siv neeg shooting hom copes zoo nrog ib tug ntau yam ntawm cov khoom, tab sis lub essence ntawm ib tug SLR koob yees duab yog hais tias nws yog heev txawv los ntawm cov compact. DSLR-lub koob yees duab yog tsim los rau cov neeg uas xav kom tswj lawv tus kheej cov duab.

Cov lus qhia rau xaiv lub zoo chaw

Nyob rau lub hauv paus ntawm ambient lub teeb, deb li cas thiab muaj zog ntawm cov kev kawm tau txais xaiv cov pom chaw Pentax K100D. Hauj lwm ntawm lub chav kawm ntawm kev txiav txim raws li nram no:

1. Teem lub hom dial rau Auto Pict. Lub koob yees duab xaiv lub pom txoj kev duab capture.
2. Teem lub ua kom pom tseeb hom mus rau AF.
3. Nrog lub koob yees duab viewfinder ntxias cov kev kawm. Nyob rau tib lub optics, koj muaj peev xwm hloov nws khees me me.
4. Muab qhov kev kawm rau hauv lub thav duab thiab polunazhat shutter khawm. Pib ua hauj lwm AF system, uas qhov taw qhia pib ntsais koj teeb kom pom tseeb ib tiav. Yog hais tias tsim nyog, lub built-nyob rau hauv flash yog tsim nyob rau hauv cov ua hauj lwm txoj hauj lwm.
5. Nkaus nias lub shutter khawm. Shooting ua tiav.
6. LCD screen yuav siv tau los xyuas cov duab. Tom qab hauv daim duab yog noj, nws yog tso tawm kom pom ntawm qhov screen rau 1 thib ob. Nyob rau hauv cov ntaub ntawv no, koj yuav rho tawm nws los ntawm nias rau qhov tsim nyog khawm rau ntawm qhov rear vaj huam sib luag.

shooting hom

Nyob rau hauv tas li ntawd mus rau lub Auto Pict Pentax K100D muaj rau preset duab hom rau tej scenes: Portrait, Toj roob hauv pes, Macro, Tsiv Nruas, Hmo ntuj Portrait, thiab tsis muaj ib lub eeb. Lub koob yees duab yuav optimize cov chaw rau txawv scenes thiab, zoo li lub tsheb, tus neeg siv yuav muab ib co tsis rau ntawm tus ncej, nyob ntawm seb lub xaiv scene. Nyob rau hauv tas li ntawd, muaj 8 ntxiv hom rau shooting nyob rau yav hmo ntuj, surf thiab daus, ntawv nyeem, hnub poob, cov me nyuam, cov tsiaj, candlelight thiab nyob rau hauv lub tsev cia puav pheej.

Variants ntawm raug thiab aperture

Thaum kawg, cov koob yees duab tej zaum yuav ua hauj lwm nyob rau hauv ib qho kev pab hom (P), aperture feem hom (Av), shutter feem (Tv) thiab phau ntawv raug (M). Cov no yog cov qauv nta ntawm tej DSLR-koob yees duab. Nyob rau hauv tas li ntawd mus txhim kho noob (B) rau manually tswj lub duration ntawm lub qhib ntawm lub shutter ntev heev tib. kev khiav hauj lwm hom raws li nram no:

• P: Lub koob yees duab poob lawm shutter ceev thiab aperture ntawm nws tus kheej. Tus neeg siv yuav muaj peev xwm mus hloov nws chaw, xws li xaiv ib tug flash hom, kho raug thiab flash lub koob yees duab, hom metering, AF, shooting, ISO rhiab heev, dawb tshuav nyiaj li cas, duab loj thiab zoo. Cov tib xaiv yog muaj rau Tv, Av hom, M thiab B.
• Tv: shutter ceev los ntawm cov neeg siv, thiab aperture - lub koob yees duab.
• Av: kws yees duab adjusts lub aperture thiab cov raug yog txiav xaiv.
• M: shutter ceev thiab aperture yog teem los ntawm tus neeg siv.
• B: M yog zoo ib yam li, tsuas hais tias cov shutter tseem qhib kom txog rau thaum lub shutter khawm pressed.

raug them nyiaj

Qhov no feature tso cai hloov tau nphav raug tsis pub dhau ± 2 EV increments 1/3 EV hom xwb nyob rau hauv P, Tv thiab Av. Qhov zoo tshaj thaum center-hnyav los yog chaw metering. Muaj kuj yog ib tug muaj nuj nqi ntawm raug bracketing rau capturing ob peb ntas nrog sib txawv tib: underexposed thiab overexposed txheem.

raug cov 'meter'

Default Lub K100D Super tus ntsuam yog tau siv ib tug 16-ya multi-tsam lawv. Qhov chaw-hnyav thiab chaw metering xaiv. Multizone metering feem ntau ua hauj lwm zoo, tiam sis tej zaum pheej tsis tshua mus rau cov tseem ceeb nyob rau high-zoo scenes, xws li ib tug kaj ntuj los yog dej hiav txwv nrog lub hnub reflected nyob rau hauv nws. Txawm li cas los, cov shortcomings yog pom nyob rau hauv lwm yam cov koob yees duab. High zoo scenes uas muaj ntau haum illumination theem ua kom zoo dua tau.

ua kom pom tseeb

Lub Pentax K100D siv 11-point AF system, thiab cov neeg siv yuav kuj xaiv tau qhov ua kom pom tseeb cheeb tsam rau automatic los yog phau ntawv khaws cov duab sharpness. Nyob rau hauv tas li ntawd mus rau lub hloov, nyob ze ntawm lub lens mount, ua kom pom tseeb hom yuav tswj tau ntawm cov koob yees duab ntawv qhia zaub mov. Ob qho kev xaiv muaj nyob AF: ib (AF-S) thiab tas mus li (AF-C). Tus thawj ntawm no yog npaj rau ruaj ruaj khoom thiab blocks hloov rau kev tsom xam thaum lub shutter khawm pressed halfway. Qhov thib ob yog siv nrog tsiv khoom thiab aims sharpness tsis tu ncua nias tog thaum lub sij hawm qhovntsej thiaj tsis mob.

Tsis zoo li ntau reflex koob yees duab nrog ib tug multi-cheeb tsam AF uas siv ib los yog ob tus ntoo khaub lig-hom sensor kev khiav hauj lwm nyob rau hauv ob qho tib si ntsug thiab kab rov tav kev taw qhia, SAFOX VIII system 9 muaj xws li xws sensors, uas ua rau ib tug ntau dua cov neeg ua hauj lwm.

Ceev kom pom tseeb Pentax K100D Super neeg xyuas hu ua ceev ceev txaus thiab ywj siab ntawm lub txuas lens. AF sensor kuj no qhov tseeb sharpness phau ntawv aiming. Txawm tias qhov no qauv yog tsis tus ceev tshaj nyob rau hauv txoj kab ntawm Pentax, nws tsom yuav luag li sai raws li high-end K10D koob yees duab.

Saib thiab viewfinder

Pentax K100D nruab nrog ib tug 2.5 "LCD zaub 210 txhiab. Pixels thiab adjustable brightness theem. Qhov screen muaj ntau 140-degree saib lub mas thiab horizontally, li ntawd, dluab yuav tso tawm kom pom ib txhij mus rau ntau yam neeg. Nws tseem yog tau 12-fold nce nyob rau hauv cov dluab. Cov zaub tsis ua hauj lwm nyob rau hauv lub xub ntiag hom - yuav siv tsis tau nws mus rau compose txhaj tshuaj. Rau lub hom phiaj no loj txaus thiab kaj viewfinder nrog 0.85 × magnification thiab 96% ncej kev pab them nqi. Qhov no yog ib qho zoo tshaj feem ntau nkag-qib SLR.

flash

Integrated Flash ncua los ntawm cov saum toj kawg nkaus ntawm cov koob yees duab cev los nias lub khawm nyob tom qab vaj huam sib luag Pentax K100D. Teeb yam ntxwv cia photographing deb 0.7-4 m los ntawm cov kev kawm raws li lub ISO thiab aperture chaw. 4 muaj flash hom: tsis siv neeg, phau ntawv, thiab liab-qhov muag yuav txo tau rau txhua tus ntawm lawv.

Nyob rau hauv lub tswv yim ntawm cov tswv, nws yog ib lub xwb disadvantage yog tias lub siab tshaj plaws sync ceev ntawm 1/180 sec. Qhov no yog tsim rau cov shooting nyob rau hauv tsawg lub teeb, thiab nws siv thaum lub sij hawm lub hnub raws li ib tug sau flash feem ntau yuav tsum tau tib ntawm 1/500 s los yog tsawg dua. Yog li ntawd nws yog tsim nyog los muab cov aperture rau f22 los yog ntau tshaj, uas tsis yog ib qho zoo tagnrho kev xaiv.

xim

Muaj ob theem pib laus ntawm cov duab: kaj thiab tej yam ntuj tso, tus thawj ntawm uas yog teem los ntawm neej ntawd. Raws li siv tswv yim, qhov chaw tau ua rau ib tug supersaturated xim, overexposure thiab grain. Vim li no, lawv pom zoo kom muab cov koob yees duab rau tej yam ntuj tso tones.

Lub koob yees duab Pentax K100D npog lub tsev av RGB xim qhov chaw, thiab sRGB. Thaum tus thawj muab ib tug dav xim gamut, ntau haum rau beginners lub sRGB, raws li nyob rau hauv cov ntaub ntawv no, cov dluab saib ntau npaum li cas tiag tiag li on-screen thiab nyob rau hauv ntawv. Cov xim muaj nplua nuj, tshwj xeeb tshaj yog nyob rau hauv liab thiab ntsuab feem ntawm lub spectrum. Yuav kom tiv thaiv cov duab uas tsis oversaturated, lawv yuav tsum tau me ntsis underexpose. Yuav kom qhov no kawg, cov neeg siv muab qhov tseem ceeb -0,3 los yog -0,7 EV raug nyiaj.

lub koob yees duab ntawv qhia zaub mov system kuj tso cai rau koj mus kho saturation, sharpness thiab sib piv ntawm cov duab.

photosensitivity

Nws pib ISO neej ntawd hais tsis siv neeg scene thiab lub shooting hom thiab nyob rau hauv nws kev txiav txim teev ISO rhiab heev ntawm 200 mus rau 3200. Nws yog tseem tau kom tsis txhob muaj ntau yam nws pib ISO, e.g., qhov tseem ceeb ntawm 200-800. ISO 200 yog lub neej ntawd hom nyob rau hauv lub P, Tv, Av, thiab M, yog hais tias tus ISO nqi tsis tau yav tas los raug xaiv. Neeg yuav tsum tau muab teem manually los xaiv ib tug ntawm cov nram qab no qhov tseem ceeb: 200, 400, 800, 1600 los yog 3200.

dawb tshuav nyiaj li cas

Nws pib dawb tshuav nyiaj li cas yog muab ua neej ntawd rau tag nrho cov Pentax K100D shooting hom. Tus neeg siv yuav kuj xaiv ib qhov chaw incandescent, fluorescent, ncaj qha tshav ntuj, Nyem, pos huab, ntxoov ntxoo, los yog muab raws li ib tug dawb los yog txho siv yam khoom.

Roj teeb lub neej

Tuam txhab Pentax - ib qho ntawm ob peb manufacturers ntawm SLR koob yees duab, uas tso cai rau koj rau nruab AA roj teeb. Cov kev pab loj tshaj ntawm cov tshuaj no yog cov muaj peev xwm mus siv thiab rechargeable roj teeb, txheem roj teeb, uas yuav tau muas nyob qhov twg, txawm nyob rau hauv ib tug me me lub zos nyob rau hauv ib tug txawv teb chaws lub teb chaws. Tsis tas li ntawd, K100D yuav powered by lithium roj teeb uas ntev ua hauj lwm hom CR-V3. Lub koob yees duab tso cai rau 1480 kev txhaj tshuaj nrog autofocus, duab stabilization, plua plav tawm muaj nuj nqi nyob rau txhua startup thiab periodically siv cov sab hauv thiab sab nraud explosions.

Specifications optics

Lub nkag 18-55 hli lens yog zoo heev. Optics qha insignificant vignetting (tsaus fab) nyob rau hauv ib tug ntau lub (18 hli), tab sis txaus sharpness thoob plaws hauv tus ncej. Lub lens suffers me ntsis chim distortion nyob rau ntau kawg thiab pincushion ntawm telephoto. Txawm tias lub 6-megapixel daws teeb meem, paub dluab thiab nkig, txawm nyob rau hauv 100% magnification. Nrog cov npoo muaj yog liab doog fringing (nyob rau high-zoo rau ib thaj tsam), tab sis lawv yog pom xwb thaum doubling.

Xyuas

Pentax K100D neeg siv xyuas hu ua ntau tshaj li nws tus tij laug, K10D, dua li lwm yam kev siv nyiaj txiag SLR koob yees duab. ua kom pom tseeb kev ceev ntawm lub koob yees duab yog hais txog cov tib yam. Thaum tus nruam shooting ceev sib npaug zos rau 2.7 / s, cov koob yees duab kev ua tau zoo yog zoo heev, tab sis lub me me tsis 3 los yog 5 RAW JPEG-dluab thiab tsawg-speed nrog flash synchronization tshuam txwv tsis pub chamber. Raws li cov kev txheeb xyuas, cov duab zoo yog cov zoo tshaj plaws uas yuav pom nyob rau ib tug ntaus nrog ib tug 6-megapixel sensor, ISO thiab cov suab nrov yog txwv vim rau qhov no. Tag nrho cov compatibility nrog tag nrho cov lo ntsiab muag chaw tsim tshuaj paus yog zoo limitless lub caij rau cov expansion thiab kev loj hlob ntawm photographic txawj. Xim nplua nuj tej yam ntuj tso tus cwj pwm txawm tias thaum cov duab laus. Ua-nyob rau hauv stabilization system thiab plua plav tawm txhais tau tias lub koob yees duab yog kuj ceeb tias tag nrho cov featured. Beginners uas tau cia li hloov los ntawm ib tug compact koob yees duab, nrog nws pib thiab scene hom xav tias heev ntseeg nrog nws.

Muab tus nqi, K100D Super yog ib qho zoo heev nkag-qib xyeem.