Proper Sampling

Before acquiring images for deconvolution, ideal sampling density has to be found. The XY Calibration and Z Step calculations are different for confocal and widefield microscopy.

Widefield Sampling

Ideal value for a widefield microscope is calculated as follows:

where λem is the sample emission wavelength, n is the refractive index of the objective lens, and α is the objective half-aperture angle which is calculated as follows:

where NA is the numerical aperture of the objective calculated as follows:

Note

Calculated values for XY calibration and Z step are ideal. Use this value or the closest possible value. A range from zero to 3x the ideal value (for XY calibration) or 2x the ideal value (for Z step) can be used. A warning message is shown for values higher than these limits, notifying that the deconvolution effect may be weak or ineffective.

Confocal Sampling

Ideal value for a confocal microscope is calculated as follows:

where λex is the excitation wavelength of the light source, n is the refractive index of the objective lens, and α is the objective half-aperture angle.

Note

Calculated values for XY calibration and Z step are ideal. Use this value or the closest possible value. A range from zero to 3x the ideal value (for XY calibration) or 2x the ideal value (for Z step) can be used. A warning message is shown for values higher than these limits, notifying that the deconvolution effect may be weak or ineffective.