Q: How does numerical aperture (NA) impact microscope objective performance?
A: Numerical aperture measures the objective’s ability to gather light and determines resolution. Higher NA results in superior resolution, allowing finer distinctions in images. NA = n × sinθa, where θa represents the maximum acceptance angle and n denotes the refractive index of the immersion medium.
Original Page: How does numerical aperture (NA) impact microscope objective performance?