This report describes the results of a number of measurements and comparisons of the Veiling Glare Characteristics(VGC)for a variety of typical microscope objectives home and abroad

and the assessment method using both the Veiling Glare Index VGI and Characterized VGI(NA

0

)in this survey.Our investigation shows that

in general

from the point of view of VGC

all the microsope objectives with good performance have both very small VGI and VGI(NA

c

)which almost do not very along with the sizes of the limiting aperture of the black target.The results suggests that in order to improve the VGC of domestic microscope objectives

atten-tions must be paid to the optical design to reduce the VG

and to use a better process for darkening the barrels etc.