If you've down much work with a microscope and video camera you've probably run into problems with the field of view at one time or another. Microscopes by their nature deliver a circular field of view through their optics. Video cameras, historically by design, produced rectangular images. So it's not hard to imagine when you lay one upon the other.
If the corner to corner diagonal of the camera's imager is smaller than the diameter of the microscopes field of view, the camera's field will be overfilled. The view on the cameras video monitor will be considerably less than the field of view from the microscope.
If the corner to corner diagonal of the camera's imager is smaller than the diameter of the microscopes field of view, the camera's field will be overfilled. The view on the cameras video monitor will be considerably less than the field of view from the microscope.
On the otherhand, if the camera's diagonal is larger than the microscope's field diameter, the camera area will essentially be inscribed within the circular field of view. In that case, the video monitor will display a circular field, and a considerable portion of the camera's resolving power will be unused, specifically the corners.
So when choosing a CCD camera or CMOS camera for microscopy, you must choose which is your priority. Do you need to see the entire field of view offered by the microscope, or is it more important to maximize the number of pixels capture your image data?
Either of these parameters can be affected by your choice of camera sensor size, or your choice of video adapter optics for the microscope. Popular choices for camera sensor size is the 1/2 format or the 1/3 format. And popular video adapter optics have .5X, 1X and 2X magnifications.
To overfill the camera sensor, choose a video adapter of 1x or 2x to expand the microscope's field of view projected on to the camera. If you do not have access to proper video adapter optics, selecting a 1/3 format camera sensor will achieve the same affect.
Popular camera model choices for microscopy include the line of Sony XC cameras, such as the XC-ST50, or the Tucsen line of color sCMOS cameras, such as the
So when choosing a CCD camera or CMOS camera for microscopy, you must choose which is your priority. Do you need to see the entire field of view offered by the microscope, or is it more important to maximize the number of pixels capture your image data?
Either of these parameters can be affected by your choice of camera sensor size, or your choice of video adapter optics for the microscope. Popular choices for camera sensor size is the 1/2 format or the 1/3 format. And popular video adapter optics have .5X, 1X and 2X magnifications.
To overfill the camera sensor, choose a video adapter of 1x or 2x to expand the microscope's field of view projected on to the camera. If you do not have access to proper video adapter optics, selecting a 1/3 format camera sensor will achieve the same affect.
Popular camera model choices for microscopy include the line of Sony XC cameras, such as the XC-ST50, or the Tucsen line of color sCMOS cameras, such as the