Optika Italy B-810 Serie Manuel D'instructions page 24

IV. Observation tube:
Field of view of one eye does not match
that of the other.
V. Microphotography:
Image edge is unfocused
Bright spots apear on the image
Interpupillary distance is incorrect.
Incorrect diopter adjustment.
Your view is not accustomed to micro-
scope observation.
To a certain extent it is due to achro-
matic objectives features
Stray light entering in the microscope
through eyepieces or camera viewfin-
der
Page 24
Adjust interpupillary distance.
Adjust diopter.
Upon looking into eyepieces, try look-
ing at overall field before concentrating
on specimen range. You may also
find it helpful to look up and into dis-
tance for a moment before looking
back into microscope.
To minimize the problem, set the aper-
ture diaphragm in a proper position
Cover eyepieces and viewfinder with a
dark cloth