Items  | Specifications  | MIT300  | MIT500  | 
Eyepieces  | WF10X -18mm  | ●●  | ●●  | 
WF10X -18 mm (Reticule 0.1mm)  | ●  | ●  | 
WF5X  | ○○  | ○○  | 
WF12.5X  | ○○  | ○○  | 
Infinity Plan Objective (no cover glass)  | 5X/0.11  | W.D=12.10mm  | ●  | ●  | 
10X/0.25  | W.D= 4.75mm  | ●  | ●  | 
20X/0.4(S)  | W.D= 2.14mm  | ○  | ○  | 
40X/0.65 (S)  | W.D= 0.45mm  | ○  | ○  | 
100X/1.25(Oil)(S)  | W.D= 0.12mm  | ○  | ●  | 
Long Working Distance Infinity Plan Objective (no cover glass)  | 20X/0.4 (S)  | W.D= 8.35mm  | ●  | ●  | 
40X/0.65 (S)  | W.D= 3.90mm  | ●  | ●  | 
50X/0.7 (S)  | W.D= 1.95mm  | ○  | ○  | 
80X/0.80 (S)  | W.D= 0.85mm  | ○  | ○  | 
Seidentopf Binocular Head  | Inclined 30°,Rotatable 360°, Interpupilary Distance:  50-75mm  | ●  | ●  | 
Seidentopf Trinocular Head  | Inclined 30°,Rotatable 360°, Interpupilary Distance:  50-75mm Light Distribution: 0:100  | ○  | ○  | 
Nosepiece  | Quintuple  | ●  | ●  | 
Mechanical Stage For Reflection Illumination  | Stage Size: 200X140mm,Travel: 78mmX55mm Stage Fast Lowering Unit: Stage Up-Down moving range can be 50mm (Max.)  | ●  |   | 
Mechanical Stage For  Transmission Illumination  | Stage Size: 190X140mm,Travel: 78mmX55mm Coaxial Coarse and Fine Focusing Knobs  |   | ●  | 
Stage Plate  |  Place The Sample on The Plate  | ●  | ●  | 
Clip  |   |   | ●  | 
Glass Plate  |   |   | ○  | 
Stage Micrometer  | 0.01mm  | ○  | ○  | 
Polarizing Unit  | Polarizing /Analyzer Slide  | ●  | ●  | 
Condenser  | Abbe N.A. 1.25(Iris Diaphragm)  |   | ●  | 
Illumination  | 12V/50W Halogen Lamp (Reflection Illumination)  | ●  | ●  | 
6V/20W Halogen Lamp (Transmission Illumination)  | ○  | ●  | 
6V/30W Halogen Lamp(Transmission Illumination)  | ○  | ○  | 
Field Diaphragm  |   |   | ●  | 
Filter  | Blue  | ○  | ●  | 
Green  | ○  | ○  | 
Yellow  | ○  | ○  | 
C-mount  | 1X  | ○  | ○  | 
0.57X (Focus Adjustable)  | ○  | ○  |