Setting The Measurement Distance And The Pint Ring Range Index; Setting Measurement Distance - Konica Minolta CA-2500 Series Instruction Manual

Setting the measurement distance and the pint ring range index

Setting measurement distance

Five types of objective lenses are available for CA-2500 depending on the size of measuring objects. The
relation between the size of measuring objects and the measurement distance for each lens is as follows:
CA-2500A, CA-2500S, CA-2500SW, CA-2500ST
Standard lens
Size of measurement object
(One-side length of square)
98 mm approx.
210 mm approx.
440 mm approx.
890 mm approx.
CA-2500A, CA-2500T, CA-2500ST, CA-2500WT
Telephoto lens
Size of measurement object
(One-side length of square)
115 mm approx.
275 mm approx.
420 mm approx.
Optical lens features in varying light intensity and illuminance distribution of imaging surface if focus ring
is rotated. Therefore, lens calibration has been done lens by lens according to the distance from lens to
measurement object (distance indicator of focus ring). Each has its own calibration coefficient.
Correct calibration coefficient can be applied by selecting what kind of lens is used for which focusing
distance, in software CA-S25w.
CA-2500A, CA-2500S, CA-2500SW, CA-2500ST
Distance
0.25 m
0.3 m
0.5 m
1 m
CA-2500A, CA-2500W, CA-2500SW, CA-2500WT
Measurement distance
250 mm
500 mm
1000 mm
2000 mm
Measurement distance
900 mm approx.
2000 mm approx.
3000 mm approx.
Standard lens
With distance label
○
○
○
○
○
23
Wide lens
Size of measurement object
(One-side length of square)
145 mm approx.
410 mm approx.
850 mm approx.
1770 mm approx.
With low-magnification macro ring (Macro 1)
Size of measurement object
(One-side length of square)
57 mm approx.
With high-magnification macro ring (Macro 2)
Size of measurement object
(One-side length of square)
27 mm approx.
On indicator
Decimal point indicator position (See Figure 1-1.)
Intermediate indicator between previous and next
reference positions (Center) (See Figure 1-2.)
Decimal point indicator position
Intermediate indicator between previous and next
reference positions (Center)
Decimal point indicator position
Intermediate indicator between previous and next
reference positions (Center) (See Figure 1-3.)
Center of "1"
Intermediate indicator between previous and next
reference positions (Center)
End of focus-ring travel ([
Measurement distance
200 mm
500 mm
1000 mm
2000 mm
Measurement distance
500 mm
Measurement distance
300 mm
] side)