Instrument Lens Diameter EFL Measuring Range
BFL and Radius
MTF
OptiSpheric
Manual Focusing,
automated measurement
3 - 35 (75) mm +3 … +250 mm
-3 … -250 mm
+-3 … +-250 mm absolute MTF-Test:
5 … 75 mm EFL
OptiSpheric
Auto Focus 500
Auto Focus,
automated measurement
5 - 35 (75/150) mm +5 … +500 mm
-5 … -450 mm
+-5 … +-490 mm absolute MTF-Test:
5 … 50 mm EFL
OptiSpheric
Auto Focus 1000
Auto Focus,
automated measurement
5 - 35 (75/200) mm +5 … +1000 mm
-5 … -1000 mm
+-5…+-500 mm absolute MTF-T est:
5 … 150 mm EFL
OptiSpheric
Auto Focus 1500
Auto Focus,
automated measurement
5 - 35 (75/200) mm +5 … +1200 mm
-5 … -1200 mm
+-5 … +-750 mm absolute MTF-Test:
5 … 500 mm EFL
         
System Performance EFL
Resolution: 0.03...0.2%
Measurement Accuracy* 5...25 mm: 0.1%.....0.3%
25 500 mm: 0.03%...0.1%
500...1000 mm: 0.05%...0.3%
Measurement Time Manual focusing: 3-20 sec.
Measurement time: mouse click

AutoFocus: First measurement: 5-8 sec.
Next measurements: 3-5 sec.
  MTF
Test mode OnAxisMTF

manual on automatic Autofocus depending on the model
Wavelength range 400-1000nm
Spatial frequency: 0-500 lp/mm-higher frequencies available on request
MTF-Measurement / Slit
Evaluation
• Repeatability*
• Accuracy*


1 %
2 %
  BFL, FFL and Radius of curvature
Repeatability: 0.02 to 0.2%
Accuracy*: 0.03 to 0.3%
  Centration Errors (as an option)
Repeatability: ± 0.1µm or ± 1 arcsec
Accuracy*: ± 0.2µm or ± 2 arcsec
Measurement Time: 3-15 sec
Measurement range: ± 1…± 2000mm
  Angle Measurement (as an option)
Resolution: 0.01 arcsec
Repeatability*: 0.2 arcsec
Accuracy*: 1 arcsec

* for OptiSpheric® without autofocus: the achieved accuracy and repeatability depends as well on the operator