Lưỡng Long Tranh Châu
Nikon D300S vs. Canon EOS 7D
So sánh những hình chụp trong Studio (Định dạng JPEG)
Đây là những hình chụp so sánh trong Studio tiêu chuẩn của chúng tôi, toàn bộ hình được chụp cùng 1 vị trí sử dụng tripod.
Ánh sáng: ánh sáng mô phỏng ban ngày ,> 98% CRI (color rendering index). Crop 100%. Nhiệt độ môi trường khoảng 22°C (~ 72 ° F).
Camera settings:
* Nikon D300S:
ống kính Nikkor 50 mm F1.4 G ,
chế độ A (Aperture Priority),
ISO 200 (mặc định),
JPEG Large / Fine,
Manual WB,
Default Parameters (Normal),
Self-Timer (with exposure delay), ADL off.
* Canon EOS 7D:
Canon EF 50 mm F1.4 lens,
Aperture Priority,
ISO 100
JPEG Large / Fine,
Manual WB,
Default Parameters (Standard),
Self-Timer (với MLU), ALO disabled
Hình Nikon với kích thước 5.1 MB JPEG (4288 x 2848)
Hình Canon với kích thước 6.4MB JPEG (5184 x 3456)
Nikon D300S
Canon EOS 7D
Nikon D300S__________________Canon EOS 7D
Mặc dù chúng tôi đã quen với những hình ảnh khá mềm mại của những dòng DSLR của Nikon trong những năm gần đây. Tuy nhiên, chúng tôi cũng biết trước rằng định dạng RAW mang lại nhiều chi tiết hơn so với JPEG mà chúng tôi thử nghiệm và xu hướng tăng độ sắc nét trong các máy ảnh hiện nay của các nhà sản xuất máy ảnh là 1 quyết định phù hợp. Vì vậy chúng tôi sẽ không đánh giá hình chụp định dạng Jpeg trong máy D300s là một điểm yếu - việc tăng độ nét lại không đem lại 1 bức ảnh với nhiều chi tiết với định dạng Jpeg).
Tổng kết lại là D300S độ phân giải thấp hơn trên danh nghĩa so với 7D EOS nên Canon 7D win trong định dạng này khi hình ảnh JPEG được so sánh với tỉ lệ crop 01:01, side-by-side. D300S bắt được chi tiết ít hơn và chưa thể hiện được tài năng của mình.
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Giá (Body)
US: $1699
UK: £1264
EU: €1399
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Vật liệu của Body: Magnesium alloy
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Cảm biến
• 23.6 x 15.8 mm CMOS sensor
• DX format
• RGB Color Filter Array
• Built-in fixed low-pass filter (with self-cleaning unit)
• 13.1 million total pixels
• 12.3 million effective pixels
• 3:2 aspect ratio
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Bộ xử lý hình ảnh Nikon EXPEED
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A/D conversion 14 bit
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Kích thước ảnh chụp
• 4288 x 2848 [L; 12.2 MP]
• 3216 x 2136 [M; 6.9 MP]
• 2144 x 1424 [S; 3.1 MP]
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Kích thước ảnh (Movie)*
• 1280 x 720 @ 24 fps *
• 640 x 424 @ 24 fps *
• 320 x 216 @ 24 fps *
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Định dạng file
• NEF (12-bit or 14-bit, compressed or lossless compressed RAW)
• NEF + JPEG
• TIFF
• JPEG (EXIF 2.21)
• AVI *
• Motion JPEG *
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NEF compression
• Compressed 12/14-bit NEF (RAW, Lossless compressed):
• Compressed 12/14-bit NEF (RAW, Compressed): approx.
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Lens mount
• Nikon F mount with AF coupling and AF contacts
• 1.5x field of view crop
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Các lens có thể sử dụng
• DX AF NIKKOR: All functions possible
• D-/G-type AF NIKKOR (excluding IX NIKKOR lenses): All functions possible (excluding PC Micro- NIKKOR)
• AF NIKKOR other than D-/G-type (excluding lenses for F3AF): All functions except 3D-Color Matrix Metering II possible
• AI-P NIKKOR: All functions except Autofocus, 3D-Color Matrix Metering II possible
• Non-CPU AI NIKKOR: Can be used in exposure modes A and M; electronic range finder can be used if maximum aperture is f/5.6 or faster; Color Matrix Metering and aperture value display supported if user provides lens data
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Dust reduction
• Self-cleaning sensor unit ('Clean image sensor')
• Image dust-off data acquisition (Capture NX required)
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Tự động lấy nét
• 51 điểm lấy nét (cảm biến 15 đường cross-type )
• Multi-CAM 3500DX
• Vùng lấy nét tự động: -1 to +19 EV (ISO 100, nhiệt độ bình thường)
• Contrast Detect in Live View (Tripod) mode
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Movie Auto Focus* Contrast-detect AF on a desired point within a frame is possible (Tripod mode)*
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Lens Servo
• Single Servo AF [S]
• Continuous Servo AF [C]
• Manual focus [M]
• Focus Tracking automatically activated by subject's status in [S] or [C] AF
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Điểm lấy nét
• Single point from 51 or 11 focus points
• Liveview (Tripod mode): Contrast AF on a desired point anywhere within frame
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AF Area Mode
• Single point AF
• Dynamic Area AF [9 points, 21 points, 51 points, 51 points (3D-tracking)]
• Automatic-area AF
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Focus Lock
Focus can be locked by pressing shutter-release button halfway (single-servo AF) or by pressing AE-L/AF-L button
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AF assist
• Yes, lamp
• Range approx. 0.5 to 3 m/1 ft. 8 in. to 9 ft. 10 in.)
Exposure modes • Program Auto [P] with flexible program
• Shutter-Priority Auto [S]
• Aperture-Priority Auto [A]
• Manual [M]
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Metering
TTL full-aperture exposure metering using 1005-pixel RGB sensor
• 3D Color Matrix Metering II (type G and D lenses); color matrix metering II (other CPU lenses); color matrix metering (non-CPU lenses if user provides lens data; metering performed)
• Center-weighted: Weight of 75% given to 6, 8, 10, or 13 mm dia. circle in center of frame or weighting based on average of entire frame (8 mm circle when non-CPU lens is used)
• Spot: Meters approx. 3 mm dia. circle (about 2.0% of frame) centered on selected focus point (on center focus point when non-CPU lens is used)
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Metering range • 3D Color Matrix Metering: 0 to 20 EV
• Center-Weighted Metering: 0 to 20 EV
• Spot Metering: 2 to 20 EV
• At normal temperature (20°C/68°F), ISO 100 equivalent, f/1.4 lens
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Meter coupling CPU and AI
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Exposure lock Locked using AE-L/AF-L button
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Exposure bracketing
• 2 to 9 frames
• 1/3, 1/2, 2/3 or 1 EV steps
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Exposure compen.
• +/-5.0 EV
• 1/3, 1/2 or 1 EV steps
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Sensitivity
• Default: ISO 200 - 3200 in 1/3, 1/2 or 1.0 EV steps
• Boost: 100 - 6400 in 1/3, 1/2 or 1.0 EV steps
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Shutter
• Electronically-controlled vertical-travel focal plane shutter
• 30 to 1/8000 sec (1/3, 1/2 or 1.0 EV steps)
• Flash X-Sync: 1/250 sec (up to 1/320 sec with reduced GN)
• Bulb
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DOF Preview
• Stop-down lens aperture by pressing button
• Activates modelling flash
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White balance
• Auto (1005-pixel CCD, image sensor)
• Presets (seven) with fine tuning
• Manual presets (five)*
• Color temperature in Kelvin (2500 - 10000 K, 31 steps)
• White balance bracketing (2 to 9 frames,1, 2, 3 MIRED steps)
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Picture Control
• Standard
• Neutral
• Vivid
• Monochrome
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Image parameters
• Quick Adjust: 5 settings (adjusts Sharpening, Contrast and Saturation by preset amounts)*
• Sharpening: Auto, 10 levels*
• Contrast: Auto, 7 levels*,
• Brightness: 3 levels
• Saturation: Auto, 7 levels*
• Hue: 5 levels*
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Color space
• sRGB
• Adobe RGB
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Viewfinder
• Optical-type fixed eye-level pentaprism
• Built-in diopter adjustment (-2 to +1m-1)
• Eyepoint: 19.5 mm (at -1.0m-1)
• Frame coverage 100%
• Viewfinder magnification approx 0.94x with 50 mm f/1.4 lens; -1.0m-1
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Focusing screen
• B-type BrightView Clear Matte Screen II
• Superimposed focus brackets
• On-demand grid lines
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LCD monitor
• 3.0 " TFT LCD
• 920,000 pixels* (VGA; 640 x 480 x 3 colors)
• 170° viewing angle
• Brightness adjustment
• 100% frame coverage
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LCD Liveview
• Handheld mode: TLL phase-difference AF with 51 focus areas (15 cross-type sensors)
• Tripod mode: focal-plane contrast AF on a desired point within a specific area
Shooting modes • Single frame
• Continuous Low [CL]
• Continuous High [CH]
• Quiet shutter-release [Q]*
• Self-Timer (programmable)
• Mirror-up mode
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Continuous shooting
• With built-in battery: up to 6 fps
• With AC adapter or MB-D10 pack and batteries other than EN-EL3e: up to 8 fps
• 12-bit RAW at full speed, 14-bit RAW only 2.5 fps
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Self-timer
• 2, 5, 10 or 20 sec*
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Flash control
• TTL: TTL flash control by 1,005-pixel RGB sensor.
• Built-in Speedlight, SB-900, SB-800, SB-600 or SB-400: i-TTL balanced fill-flash and standard i-TTL flash
• AA (Auto Aperture-type) flash: Available with SB-900 or SB-800 used with CPU lens
• Non-TTL Auto: Available with Speedlights such as SB-900, SB-800, 28, 27, and 22S
• Range-priority manual flash; available with SB-900 and SB-800
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Flash Sync Mode
• Front-curtain Sync (normal)
• Red-Eye Reduction
• Red-Eye Reduction with Slow Sync
• Slow Sync
• Rear-curtain Sync
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Built-in Speedlight
• Manual pop-up with button release
• Guide number (ISO 200, m) approx 17 (manual 18)
• Guide number (ISO 100, m) approx 12 (manual 13)
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Flash Accessory Shoe
ISO 518 standard-type hot shoe contact; Safety lock mechanism provided
Flash Sync Terminal ISO 519 standard terminal, lock screw provided
Flash compensation • -3 to +1 EV
• 1/3, 1/2 or 1 EV steps*
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Creative Lighting System
Advanced Wireless Lighting supported with built-in flash, Speedlight SB-900, SB-800 or SU-800 as commander and SB-900, SB-800, SB-600 or SB-R200 as remotes; Auto FP High-Speed Sync and modeling illumination supported with all CLS-compatible flash units except SB-400; Flash Color Information Communication and FV lock supported with all CLS-compatible flash units
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Playback mode
• Full frame
• Thumbnail (4 or 9 or 72* images)
• One-touch zoom
• Slideshow
• RGB histogram
• Shooting data
• Highlight point
• Auto image rotation
• Image Comment (up to 36 characters)*
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Languages *
• Chinese (Simplified and Traditional)
• Dutch
• English
• Finnish
• French
• German
• Italian
• Japanese
• Korean
• Polish
• Portuguese
• Russian
• Spanish
• Swedish
• Danish*
• Norwegian*
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Connectivity
• USB 2.0 (Hi-Speed) Mini-B connector
• HDMI Mini connector (Type C)*
• Remote control 10-pin terminal
• PC Sync flash terminal
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10-pin terminal
• GPS: GPS Unit GP-1 or GPS device compliant with NMEA0183 version 2.01 or 3.01 (requires optional GPS Cable MC-35 and cable with D-sub 9-pin connector)
• Remote control: via 10-pin terminal
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Storage
• Type I CompactFlash memory cards (UDMA compliant)
• SD memory cards, SDHC compliant
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Power
• Lithium-Ion EN-EL3e (7.4 V, 1500 mAh)
• Included battery charger MH-18a
• Optional AC adapter EH-5a / EH-5
• Optional MB-D10 battery pack / vertical grip
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Vertical grip
• Optional MB-D10 battery pack / vertical grip
• One Rechargeable Li-ion Battery EN-EL4a, EN-EL4 or EN-EL3e or eight R6/AA-size alkaline (LR6), Ni-MH (HR6), lithium (FR6) batteries, or nickel-manganese ZR6 batteries
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Battery monitoring
The LCD monitor on the camera back displays the following information
about the EN-EL3e battery:
• Remaining charge (%)
• No. of shots taken since last charge
• Battery life (5 stages)
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Dimensions 147 x 114 x 74 mm (5.8 x 4.5 x 2.9 in)
Weight (no batt) 840 g (1.9 lb)
Weight (with batt) 918 g (2.2 lb)
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Box contents
• Rechargeable Li-ion Battery EN-EL3e
• Quick Charger MH-18a
• Eyepiece Cap DK-5
• Rubber Eyecup DK-23
• USB Cable UC-E4
• Audio Video Cable EG-D2
• Camera Strap AN-DC4
• LCD Monitor Cover BM-8
• Body Cap BF-1A
• Accessory Shoe Cover BS-1
• Software Suite CD-ROM
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Optional accessories
Multi-Power Battery Pack MB-D10, Wireless Transmitter WT-4, Magnifying Eyepiece DK-21M, AC Adapter EH-5a, Capture NX Software, Camera Control Pro 2
* New or changed compared to the D300
Được sửa bởi ccmshark lúc 10:38 AM ngày 24-01-2010
Nikon D80, 50mm/1.8.
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