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round vignetting picture with digital camera microscope

Unlike CCD video cameras, most digital cameras have an integrated optics. In combination with the optics of the LM Digital Adapter the digital camera´s chip is fully illuminated when the zoom is adjusted correctly.
Some producers have integrated a  preliminary optical lens system in the C-Mount of their microscopes. The C-Mount connection has originally been designed for CCD video cameras without integrated optics. The function of this lens system is to project directly a temporary picture onto the chip of the video camera through using the integrated C-Mount optics.
Depending on the size of the CCD chips there are being offered different C-Mount lenses like e.g. C-Mount Adapter 1x, C-Mount Adapter 0,63x, C-Mount Adapter 0,50x or C-Mount Adapter 0,35x in order to illuminate perfectly the different video chips with the dimensions of 1”, 2/3”, ½” or 1/3”. 
These C-Mount optics cause interferences when being used with digital cameras or camcorders in combination with all types of LM Digital Adapters and therefore must be removed. Otherwise they might cause a strong circular vignetting effect.

video chips different dimensions

                        1"                            1/2 "                     1/3 "

The integrated optics of the microscope´s C-Mount connection is normally used for the adjustment of the CCD video camera. The reduction factor (0,63x, 0,5x, 0,35x) depends on the chip size. 
Such C-Mounts with integrated optics are therefore not suitable for the connection of digital cameras and must be replaced by C-Mounts without integrated optics (1x C-Mount)

adjustment field of view with different lens system

Using the optimal combination of C-Mount Adapter 1x without integrated optics,together with our LM Digital Adapter and a Nikon Coolpix, you will obtain a perfect, rectangularly illuminated digital camera´s chip.

New LM Digital Adapter for: Sony Alpha 9 III / Nikon Z9 / Nikon Z8 / Sony Alpha 7R V / Sony Alpha 1 / Sony Alpha 9 II (ILCE-9M2) / Sony FX3 Cinema Line / Sony Alpha 9 / Nikon D6 / Canon EOS R3 / Canon EOS R6 Mark II / Canon EOS R8 / Sony Alpha 7R IV / Canon EOS R5 / Sony Alpha 7S II / Sony Alpha 7S III / Sony Alpha 7R III / Canon EOS R6 / Nikon Z6 / Nikon Z6II / Sony Alpha 7R II / Nikon Z7 / Nikon Z7II / Canon EOS R / Canon EOS Ra (Astro) / Nikon Z5 / Sony Alpha 7C / Canon EOS RP / Sony Alpha 7S / Canon EOS R7 / Leica SL2-S / Canon EOS R10 / Canon EOS 1D X Mark III / Nikon Z50 / Nikon Z30 / Nikon Z fc / Nikon D850 / Canon EOS 1D X Mark II / Nikon D780 / Olympus OM-1 / Sony Alpha 7III /