อัพเดทวงการกล้อง
Sony DSLR-A900
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หลังจากรอคอยกันมานาน Sony ก็ได้เปิดตัวกล้องดิจิตอล Sony Alpha 900 กล้องดิจิตอล SLR แบบ Full Frame มาให้สาวก Minolta ได้ยลโฉมกันเสียที Alpha 900 อัดแน่นไปด้วยเทคโนโลยีล่าสุด Exmor™ CMOS Sensor ขนาด 24.6 MegaPixels พร้อมด้วยเทคโนโลยี Sensor-shift Image Stabilization ซึ่งเป็นเทคโนโลยีเฉพาะของ Minolta ที่ป้องกันการสั่นไหวที่ตัวรับแสง นับเป็นกล้อง Full Frame ตัวแรกที่มีเทคโนโลยีนี้ และด้วย 100%
ที่มา : www.dpreview.com |
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 Sony Alpha A900  |
 Sony Alpha A700 |
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| Body material | • Magnesium Alloy body chassis • high grade plastic exterior • Environmental seals |
• Aluminum chassis • Magnesium Alloy body shell • high grade plastic exterior • Environmental seals |
| Sensor | • 35.9 x 24.0 mm CMOS sensor ‘Exmor’ • RGB Color Filter Array • Built-in fixed low-pass filter • 25.7 million total pixels • 24.6 million effective pixels • On-chip Column A/D Conversion & NR |
• 23.5 x 15.6 mm CMOS sensor ‘Exmor’ • RGB Color Filter Array • Built-in fixed low-pass filter • 13.05 million total pixels • 12.25 million effective pixels • On-chip Column A/D Conversion & NR |
| Processor | Dual Bionz | Bionz |
| Crop Factor | 1x | 1.5x |
| Image sizes (3:2) | • 6048 x 4032 (24M 3:2) • 4400 x 2936 (13M 3:2) • 3024 x 2016 (6.1M 3:2) • 3924 x 2656 (11M APSC) • 2896 x 1928 (5.6M APSC) • 1984 x 1320 (2.6M APSC) |
• 4288 x 2856 (L RAW) • 4272 x 2848 (L) • 3104 x 2064 (M) • 2128 x 1424 (S) |
| Auto Focus | • TTL CCD line sensors (9-points, center dual cross types + 10 assist sensors) | • TTL CCD line sensors (11-points, 10 lines with center dual cross sensor) |
| Custom modes | Three | Three |
| Bracketing | • Single or continuous bracketing • 3 or 5 frames • 0.3, 0.5 , 0.7 or 2.0 EV steps (2.0 EV steps for 3 exposures only) |
• Single or continuous bracketing • 3 or 5 frames • 0.3, 0.5 or 0.7 EV steps |
| Noise reduction | • Long exposure for exposures longer than 1 second (User controllable: On / Off) • High ISO NR High/Normal/Low/Off at ISO 1600 or higher |
• Long exposure for exposures longer than 1 second (ser controllable: On / Off) • High ISO NR High/Normal/Low at ISO 1600 or higher |
| Continuous | • H: Approx 5fps max • L: Approx 3fps max • RAW: Up to 12 frames • cRAW (compressed): Up to 25 frames • RAW+JPEG: Up to 10 frames • JPEG (XFINE): Up to 11 frames • JPEG (STD/FINE): 285/105 |
• H: Approx 5fps max • L: Approx 3fps max • RAW: Up to 18 frames • cRAW (compressed): Up to 25 frames • RAW+JPEG: Up to 12 frames • JPEG (XFINE): Up to 16 frames • JPEG (STD/FINE): Unlimited (to card capacity) |
| Viewfinder | • Optical glass pentaprism • Spherical Acute Matte focusing screen (interchangeable) • Frame coverage approx 100% • Magnification approx. 0.74x • Eye-relief 20 mm from eyepiece, 21 mm from frame • Eyepiece shutter |
• Optical glass pentaprism • Spherical Acute Matte focusing screen (interchangeable) • Frame coverage approx 95% • Magnification approx. 0.9x • Eye-relief 25 mm from eyepiece, 21 mm from frame |
| Vertical Grip | Optional vertical Grip VG-C90AM | Optional vertical Grip VG-C70AM |
| Dimensions | 156 x 117 x 82 mm | 141.7 x 104.8 x 79.7 mm |
| Weight | • No battery: 850 g • With battery: 895 g |
• No battery: 690 g • With battery: 768 g |
| Other | • Intelligent Preview mode • New raw converter software • AF Micro Adjustment • Top LCD panel |
• Grip sensor |
