ID168
Setting the parfocality:
I have an LM DSLR adapter with C-mount connection (photoport). How do I ensure that the image is in focus both in the eyepiece and on the camera at the same time?
All LM DSLR adapters are equipped with an international standard C-mount connection. This C-mount connection has a flange focal length of 17.52 mm. The flange focal length describes the distance between the microscope’s C-mount connection and the camera’s sensor chip level. If the microscope that you are using also has an international standard C-mount connection thread, then the image will be in focus in both the eyepiece and on the camera display at the same time. If you notice a very large difference between the focus settings, please check the C-mount connection on your microscope. The C-mount connection must have a factor of 1x and may not have any inbuilt optics.
If you determine that this is not the case with your microscope, and it is not possible to refit it with a standard C-mount connection, then photographs can be taken using an ocular tube. For this purpose, one of your microscope’s eyepieces is removed and an LM digital adapter with tube connection is used instead.
If the difference in focus between the eyepiece and the camera display is wide, then we recommend to use a focusable LM DSLR Universaladapter.
If the difference in focus between the eyepiece and the camera display is only very small, then the following optimization options are available:
1. If you possess a microscope with focusable observation tubes, they can be used to align the focus. First bring the image into focus on the camera display, then look through the eyepiece and focus the image.
2. If your microscope is not equipped with focusable observation tubes, but does have eyepieces with dioptre adjustment, then the focus can be aligned using them. Bring the image into focus on the camera display, then look through your eyepiece and focus the image using the dioptre adjustment
Update: 04.04.2011
Nikon D4 / Nikon D3S / Nikon D3x / Nikon D7000 / Nikon D5100 / Nikon D700 / Nikon D3 / Nikon D300S / Nikon D300 / Nikon D5000 / Nikon D3100 / Nikon Coolpix S8100 / Nikon Coolpix S9100 / Nikon D90 / Nikon Coolpix P500 / Nikon Coolpix S6100 / Nikon Coolpix P7000 / Nikon Coolpix 4500 / Nikon Coolpix S710 / Nikon Coolpix S8000 / Nikon Coolpix S1100pj / Nikon Coolpix S4100 / Nikon Coolpix S1100pj / Nikon Coolpix L120 / Nikon Coolpix P300 / Nikon Coolpix 995 / Nikon Coolpix 990 / Nikon Coolpix P6000 / Nikon Coolpix P6000 / Nikon Coolpix P5100 / Nikon Coolpix S700 / Nikon Coolpix P5100 / Nikon Coolpix P90 / Nikon Coolpix S620 / Nikon Coolpix S630 / Nikon Coolpix S570 / Nikon Coolpix S640 / Nikon Coolpix S70 / Nikon Coolpix S1000pj / Nikon Coolpix L22 / Nikon Coolpix L110 /
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