| 词条 | Pentax K-5 II |
| 释义 |
| model = Pentax K-5 II | image = K5 GPS GRIP DSC03814 smial wp.jpg | image_size = 240px | caption = K-5 II with optional GPS unit and battery grip | kind = Digital single-lens reflex camera | sensor = APS-C 23.7×15.7 mm CMOS sensor | res = 16.3 megapixels (4928×3264) | iproc = Prime II | lens = Interchangeable Pentax KAF3 and KAF2 mount compatible with Pentax auto-aperture lenses; older lenses supported in stop-down metering mode | shutterRange = 30–1/8000 s, Bulb | speedRange = ISO 100–12,800 in 1, 1/2, or 1/3 EV steps; expandable to ISO 80–51,200 | metering = TTL open-aperture metering, 77 segments | mmode = Multi-segment, Center-weighted, Spot | cont = Up to 7 fps | rearLCD = 3″, 921,000 dots (640×480 RGB pixels) | recording_medium = SD, SDHC, SDXC[1] and, according to one source, microSD[2] | emode = Green (fully automatic), program, aperture priority, shutter priority, sensitivity priority, aperture and shutter priority, manual, bulb, X-sync shutter speed, five User presets. | flash = Onboard pop-up flash; hot shoe for P-TTL flash units with high-speed sync support; PC socket for studio flashes; 1/180 s X-sync speed | battery = D-LI90 lithium-ion rechargeable battery | obp = D-BG4 battery grip accepts additional D-LI90 battery or 6 AA batteries | viewfinder = Eye-level pentaprism, near-100% coverage, 0.92× magnification | weight = With battery: {{convert|760|g|lb|abbr=on}} }} The Pentax K-5 II is a 16.3-megapixel digital single-lens reflex camera, successor to the Pentax K-5, sharing its body shape with its two predecessors including the Pentax K-7, and making incremental improvements on the K-5. The Pentax K-5 II is available in two versions, the basic Pentax K-5 II as well as the Pentax K-5 IIs which omits the traditional low pass filter for greater sharpness but potentially greater moiré. Both models have improved autofocus ability, particularly in low and tungsten light, down to −3EV, which at the time of release makes it the best low-light autofocus camera.[3] Also improved is the sensitivity of the central AF area which now has an AF base of f/2.8 instead of the common f/5.6.[4] This increased AF base length helps to improve focus accuracy, in particular with fast (wide aperture) lenses and in low light.[5] The Pentax K-5 II/IIs each have HD video capabilities, with resolutions of 1920×1080 (at 25 fps), 1280×720 (at 25 & 30 fps), 640×480 (at 25 & 30 fps). Externally, the cameras are distinguished by a recessed screen, where the K-5 had a flush-mounted one.[6] The K-5II/IIs has a gapless design—the typical air gap is avoided by the use of a special resin—helps to reduce internal reflections and gives better visibility in bright light.[7] The material of the screen has been changed from plastic to tempered glass, which is scratch resistant.[8][9] Like its predecessor, the K-5 II/IIs is fully weather-sealed.[7] It has the highest camera sensor rating of any Pentax APS-C camera, according to DxO Labs, with a score of 82.[10] BundlingThe K-5 II/IIs are available in two different kits, one including the DA 18–55 mm WR lens, and the other the DA 18–135 mm WR lens, as well as a body only.[7] References1. ^{{cite web|url=http://www.dpreview.com/products/pentax/slrs/pentax_k5ii |title=Pentax K-5 II: Digital Photography Review |publisher=Dpreview.com |date= |accessdate=2012-10-20}} {{Pentax DSLR cameras}}{{DSLR cameras with movie mode}}2. ^{{cite web |author=Steve Harvath |url=http://www.digitaltrends.com/digital-camera-reviews/pentax-k-5-ii-review/ |title=Pentax K-5 II |publisher=Digital Trends |date=2012-09-10 |accessdate=2012-10-20 |archive-url=https://web.archive.org/web/20120918170935/http://www.digitaltrends.com/digital-camera-reviews/pentax-k-5-ii-review/# |archive-date=2012-09-18 |dead-url=yes |df= }} 3. ^{{cite web|author=Angela Nicholson |url=http://www.techradar.com/news/photography-video-capture/cameras/pentax-k-5-ii-and-pentax-k-5-iis-10-things-you-need-to-know-1098700 |title=Pentax K-5 II and Pentax K-5 IIs: 10 things you need to know | News |publisher=TechRadar |date= |accessdate=2012-10-20}} 4. ^{{cite web|author=Pentax |url=http://www.pentax.jp/english/news/2012/20120911.html |title=The new flagship model of the PENTAX K digital SLR camera series, featuring newly developed state-of-the-art AF sensor that boasts broadest AF working EV range range in its class*. |publisher=Pentax|date= |accessdate=2013-06-28}} 5. ^{{cite web|author=David Busch |year= |title=Mastering Digital SLR photography |url=http://my.safaribooksonline.com/book/-/9781435458321/mastering-the-mysteries-of-focus/ch03lev1sec3 |publisher=Safari Books online |access-date=2013-06-28 |archive-url=https://web.archive.org/web/20110608003537/http://my.safaribooksonline.com:80/book/-/9781435458321/mastering-the-mysteries-of-focus/ch03lev1sec3 |archive-date=2011-06-08}} 6. ^{{cite web|url=http://www.imaging-resource.com/PRODS/pentax-k5-ii/pentax-k5-iiA.HTM |title=Pentax K-5 II Camera - First Shots |publisher=Imaging-resource.com |date= |accessdate=2012-10-20}} 7. ^1 2 {{cite web|url=http://www.dpreview.com/news/2012/09/10/Pentax-Ricoh-announces-Pentax-K-5-II-DSLR-and-K-5-IIs-with-no-low-pass-filter |title=Pentax Ricoh announces Pentax K-5 II DSLR and K-5 IIs with no low-pass filter: Digital Photography Review |publisher=Dpreview.com |date= |accessdate=2012-11-13}} 8. ^{{cite web|url=http://www.pocket-lint.com/news/47426/pentax-k-5-ii-k-5-iis-dslr-cameras |title=Pentax K-5 II and K-5 IIs refresh company's DSLR camera range |publisher=Pocket-lint |date=2012-09-10 |accessdate=2012-11-13}} 9. ^{{cite web |url=http://support.pentaximaging.com/node/1272 |title=Announcement of PENTAX K-5 II and K-5 IIs | Pentax Support |publisher=Support.pentaximaging.com |date=2012-09-10 |accessdate=2012-11-13 |deadurl=yes |archiveurl=https://web.archive.org/web/20121018220834/http://support.pentaximaging.com/node/1272 |archivedate=2012-10-18 |df= }} 10. ^http://www.dxomark.com/Cameras/Ratings 4 : Cameras introduced in 2012|Live-preview digital cameras|Pentax DSLR cameras|Pentax K-mount cameras |
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