Our MPLAPON Plan Apochromat objective lens Series provides the highest level of chromatic correction and resolution capability available from Olympus. High level wavefront aberration correction is guaranteed.

M Plan Apochromat MPLAPON
• Dedicated for brightfield microscopy, simple polarized light and DIC (Differential Interference Contrast).
• The Plan Apochromat series provides the highest level of chromatic aberration of the Olympus objective lenses. Guaranteed optical performance (wavefront aberration) with a Strehl ratio of 95% or better.
• Compatible with the Olympus autofocus unit, ideal for automating the inspection process.

Strehl ratio: Indicates as a percent, the ratio of the proportion of light that an actual optical system can concentrate with respect to the proportion of light concentrated in the image plane (central intensity) by an ideal, aberration-free optical system, with the latter serving as 100%. A higher percentage indicates a higher quality optical system.

Specifications
Magnification [X]: 50
Numerical aperture (NA): 0.95
Working distance (WD) [mm]: 0.35
Objective Field Number: 26.5
Immersion medium: Air/Dry
Spring loaded: Yes
Correction collar: N/A
Correction range of correction collar: N/A
Iris: N/A
Correction level of chromatic aberration: Apochromat(APO)
Parfocalizing distance [mm]: 45
Back focal plane (BFP) position: -8.0
Type of screw thread: W20.32X0.706(RMS)
Brightfield(Reflected): Excellent
Brightfield(Transmitted): Excellent
Darkfield(Reflected): N/A
Darkfield(Transmitted): N/A
DIC(Reflected): Good
DIC(Transmitted): N/A
Phase Contrast: N/A
Relief Contrast: N/A
Polarized Light: Limitation
Fluorescence (B, G Excitation): N/A

Parameter Name	Parameter Value
Type	fixed-focus
Technical applications	inspection for microscopy
Other characteristics	apochromatic
Focal length	Min.: 400 mm(15.75 in)Max.: 700 mm(27.56 in) Max.: 700 mm(27.56 in)Min.: 400 mm(15.75 in)