Are HD single lens reflex cameras the better HD camcorders?
A new generation of single lens reflex cameras with high
definition (HD) video recording function, such as the Canon 5D II,
Canon EOS 500D and Nikon D90, have well and truly shaken up the
camcorder world.
The
possibility of attaching any lens that you wish to the camera body via
the bayonet fitting was previously the preserve of the professional
scene only. In the case of commercially available camcorders, the lens
is inbuilt and cannot be removed. In digital single lens reflex
cameras, a much larger sensor chip is incorporated to provide perfect
image quality. Modern digital SLR cameras currently have between 10 and
21 million pixels in photo mode. In full HD video mode, a resolution of
only 2 million pixels is required. The photo format is reduced to video
resolution using a clever algorithm. Due to this reduction, the video
quality is increased considerably and, depending on the number of
pixels, this results in a reduction ratio in the order of between five
and ten to one. 5 to 10 pixels thus produce one video pixel. Through
this averaging, image flaws are reduced and the signal to noise ratio
is greatly increased. A large signal to noise ratio, with a maximum
memory depth for each colour channel, guarantees image quality with
plenty of contrast and low noise, even in difficult light conditions.
For use at the microscope, after the camera lens has been removed, the
microscope adapter is directly mounted to the camera body via a bayonet
fitting and the adapter projects the image directly onto the sensor
chip. Modern single lens reflex cameras have a Live View function,
which is especially important in microscopy as it allows the user to
precisely adjust the focal plane.
Conclusion: DSLR cameras with HD function are placing a great deal
of pressure on classical camcorders and will win a large portion of
their market share in future. The comparatively large sensor chip and
detachable lens make a DSLR camera almost unbeatable. For use at the
microscope, the DSLR camera is king.
Caution! This manual is protected by copyright. Unauthorised reproduction thereof, in whole or in part, is punishable by law. Only use with MICRO TECH LAB’s approval.New LM Digital Adapter for: Nikon D850 / Sony Alpha 7III / Sony Alpha 9 / Nikon D5 / Sony Alpha 7S II / Sony Alpha 7R II / Sony Alpha 7R III / Sony Alpha 7S / Canon EOS 5D Mark IV / Nikon D750 / Canon EOS 6D Mark II / Sony Alpha 6300 / Sony Alpha 6500 / Nikon D500 / Canon EOS 1D X / Nikon D810 / Nikon D4s / Nikon D800 / Nikon D800E / Nikon D4 / Nikon Df / Nikon D610 / Nikon D600 / Canon EOS 6D / Canon EOS 5DS R ( without low-pass filter) / Olympus OM-D E-M1 Mark II / Canon EOS 80D / Canon EOS 5DS / Sony Alpha 77 II / Canon EOS 70D / Nikon D7200 / Canon EOS 200D / Canon EOS 800D / Rebel T7i / Canon EOS 77D / Canon EOS 5D Mark III / Canon EOS 60D / Sony Alpha 7R / Sony Alpha 7 / Nikon DS-Qi2 (Microscope Camera) / Nikon D3x / Olympus OM-D E-M1 /
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