Cołumn OptJes
CnrwMtK Al*flr*tioci SftMTM»
hi gurt- 2-3. The finał ujycrturc limils hcarn eurrent and reduees ihe effects of lens aberraiions. hor any set of lens condilions., ihere is an aperturc stze [hal opnmizes the [rade off between hcam currant and spoi sfce. Larger bcam currcnls require larger jpenures.
L#ns Aborratlons