Saturday, February 11. 2006
First dSLR with live preview
Olympus dSLR cameras have few things that are different than photocameras from above manufacturers.
First, their senzors are with different proportions. So what? - you might say. Well, it does matter.
CMOS sensor of canon 20D has following width and height: 22.5mm x 15.0mm (0.886 inches x 0.590 inches). CCD sensor of Nikon D70 has following width and height: 23.7mm x 15.6mm (0.933 inches x 0.614 inches). And so on. Sensors from most manufacturers have similar proportions - which is: 3/2. This is proportion that is considered the best ratio by many mathematicians, scientists and artists. The regular film has the same ratio. So, most of professional camera manufacturers decided to follow the traditions and make sensors which will produce images with which proportions we are all used to.
But, Olympus was brave enough and its system has ratio of 4:3. With 3:2 you lose a big part of lens coverage. This is reduced with 4:3 ratio. This can be seen on the picture below:
Second, they were the first who implemented automatically sensor cleaning.
Now, they are the first who implemented live preview on dSLR photo camera. It has tilt and swivel monitor (just like compact photo cameras have). ofcourse you won't use this feature with your 300mm 2.8 lens, but it [b]is[/b] usefull. Making shots above the crowd, or from the ground level, macro photography - all this will benefit from the new feature.
Congratulations to Olympus!
 | (Electronics) Manufacturer:Olympus Released: |
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