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MM-SLR Image of Blood Cells in Brightfield Transmitted Light at 1000x oil - Jenalumar Contrast
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MDSLR-BA Image of Plant Tissue in Brightfield Transmitted Light at 200x -
Motic BA400T
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This comparison shows a stage micrometer imaged with a
Motic BA400T microscope at 200x optical magnification.
The MM-SLR yielded a 500um Field of View (FOV) while the MDSLR yielded a 780um FOV.
The microscope's 10x/20mm eyepieces yielded a 1000um circular FOV.
The MDSLR yields a 36% increased FOV over the MM-SLR and other standard
SLR adapters.
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More on Digital SLR's: Ever since we got our first Canon EOS
XSI camera with Live View capability and included control
software,
we've been sold on the EOS line of cameras. Because of the Live
View capability which greatly eases focusing of the camera image, we
have redesigned the MM-SLR with an improved photoeyepiece lens, but
without the focusing lever. This new design is optically far
superior to the previous MM-SLR, and also will now fit the older Nikon
"chimney" type phototube directly. The MM-SLR does a nice job of adapting these DSLR
cameras to any microscope, but the limited field of view
problem
remains. DSLR's have electronic sensors where traditionally film
would be, and these sensors are usually smaller than a film negative.
So, these cameras will have a
magnification factor of around 1.5x. This led to the development
of our new MDSLR series of adapters for certain compatible
microscopes. Not all microscopes will be able to be used with the
MDSLR type adapter, but for most modern microscope designs, the MDSLR
sets a new standard in microscope adapters for DSLR cameras.
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