Optika Italy B-383 Serie Manual De Instrucciones página 21

V. Microphotography
Image edge is unfocused
Bright spots appear on the image
To a certain extent it is due to achro-
matic objectives features
Stray light entering in the microscope
through eyepieces or camera view-
finder
Page 21
To minimize the problem, set the aper-
ture diaphragm in a proper position
Cover eyepieces and viewfinder with
a dark cloth