KOH KHO KING

Nikon D300 - Little brother of D3

Posted on August 27th, 2007 by KhoKing.
Categories: Photography.

After the D3…another exciting news in the Nikon world or even the whole photography world now is the Nikon D300! Successor to the Nikon D200.

Nikon D300 shares many of the similar features of D3. Here’s what I think worth noting:

• 12MP CMOS sensor with 1.5X FOV.
• 3.0? 922,000 pixel LCD monitor.
• EXPEED image processor.
• UDMA CF support.
• 51-point Multi-CAM 3500DX.
• 15 cross-type sensors.
• Contrast detect in Live View mode.
• 100% frame coverage viewfinder.
• 6 frames per second continuous shooting mode. (more…)

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Finally, VR on 400mm, 500mm and 600mm Nikon AFS Super-Telephoto!

Posted on August 27th, 2007 by KhoKing.
Categories: Photography.

Finally…

Many have been waiting for the Vibration Reduction update from Nikon on their Telephoto lenses. Nikon has finally updating them…after many many years Canon has their IS lenses in their 400mm, 500mm and 600mm.

(more…)

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Nikon D3 - First FULL FRAME DSLR!

Posted on August 27th, 2007 by KhoKing.
Categories: Photography.

Nikon has just announced their first full frame DSLR! Nikon D3!

Some interesting features which I think worth noting:

• 12MP CMOS full frame sensor.
• Dual CF memory slot.
• Live View.
• 51-Point AF
• Colour AF tracking.
• 3.0″ 922,000 pixel LCD monitor.
• 9 frames per second.

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Benefit of Full Frame?

Posted on August 27th, 2007 by KhoKing.
Categories: Photography.

The problem of full frame:

Vignetting at corners. When Canon 1Ds was first introduced, there are not many great wide angle lenses in the market for 1.5X crop DSLR, so 1Ds is a good add-on to utilize existing wide-angle lenses, but with the trade-off of vigetting at corners. See:

http://www.dpreview.com/reviews/CanonEOS1Ds/page16.asp

As of today, I am not sure how much sensor technology has improved in combating vignetting. Most new lenses are now specially design to give vertical light-path directly onto the sensor, giving the most of sharpness and contrast. I believe this will reduce vignetting at corners too.

When comparing D3 with D300, you might get same angle of view but depth of field will be different. A longer focal length will have more shallow DOF, while wider angle lens will have deeper DOF. So, you cannot get the same bokeh from D300 + 50mm lens with D3 + 85mm lens.

Another advantage of full frame when compare to smaller sensor size is that you can make better quality sensor DOT (pixel). A larger dot of each pixel is capable of capturing or receiving the light in a better way, hence give less noise and better contrast. This is why compact P&S camera with 10MP sensor is not comparable to DSLR of 10MP at high ISO. Most P&S Digicam will have bad noise at above ISO400. Just imagine a room will with balloon. A bigger room will be able to fit in BIGGER Balloon of the same quantity than a smaller room.

Again, vignetting remains a great challenge to full frame DSLR. Will need to wait and see how good D3 is.

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