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Created by Paul 1108 days ago
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40D: $1299.99 body at amazon.com. Available now
D300: estimated $1799 for body. Available in November
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Created by Paul 1108 days ago
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40D: BP-511/512: 1100mAh or BP-511A: 1390mAh
D300: EN-EL3e (7.4 V, 1500 mAh)
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Created by Paul 1108 days ago
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40D: Up to 6.5 fps, 75 JPEG images or 17 RAW frames
D300: : Up to 6 fps with built-in battery, 8 fps with additional power source. 100 JPEG images at 6 fps, no data for RAW shooting.
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Created by Paul 1108 days ago
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40D: 10.2 megapixels, ISO sensitivity 100-3200, dimensions 22.2 x 14.8 mm
D300: 12.3 megapixels, ISO sensitivity 200 - 3200, (100 - 6400 with boost), dimensions 23.6 x 15.8 mm
Both cameras use 14bit digital to analog conversion.
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Created by Paul 1108 days ago
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40D: 9 cross type focus points.
D300: 51 focus points (15 cross-type sensors). Contrast detection in liveview mode.
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Created by Paul 1108 days ago
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Both cameras have hotshoes for external flashes.
D300 can also control external flashes wirelessly when 40D requires an external flash controller.
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Created by Paul 1108 days ago
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40D: 3 inch LCD, 230.000 pixels, 140 degree viewing angle
D300: 3 inch TFT LCD, 922,000 pixels, 170 degree viewing angle
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Created by Paul 1108 days ago
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Point and shoot type focusing using LCD instead of optical viewfinder.
40D: Yes, preview magnification is possible.
D300: Yes, can focus using contrast detection technique.
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Created by Paul 1108 days ago
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40D: estimated for 100,000 exposures
D300: tested for 150,000 exposures
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Created by Paul 1108 days ago
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40D: 145.5 x 108 x 73.5 mm (5.7 x 4.2 x 2.9 in)
D300: 147 x 114 x 74 mm (5.8 x 4.5 x 2.9 in)
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Created by Paul 1108 days ago
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Weight includes battery.
40D: 824 g (29.1 oz)
D300: 825 g (1.82 lb)
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Created by Paul 1108 days ago
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40D: Guide number 43 (13 meters) ISO 100
D300: Guide number 40 (12 meters) ISO 100
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Created by Paul 1108 days ago
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40D: Low-pass filter with ultrasonic vibration, software based dust removal
D300: Self-cleaning sensor unit, software based dust removal
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Created by Paul 1108 days ago
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40D: 30 sec to 1/8000 sec, bulb, flash X-sync speed 1/250s
D300: 30 to 1/8000 sec, flash X-sync 1/250 sec (up to 1/320 sec with reduced GN)
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Created by Paul 1108 days ago
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40D: optical magnification 0.95x, 95% frame coverage, interchangeable focusing screen, ISO shown in viewfinder
D300: optical magnification 0.94x, 100% frame coverage, on-demand grid lines
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