Model
bmp-107b
bmp-107t
viewing head
sliding binocular head at 45°, 360° rotatable
√
sliding trinocular head at 45°, 360°rotatable
√
eyepiece
eyepiece wf10× 18 with scale of crosshair
√
√
eyepiece wf10× 18
√
√
objective
strain free achromatic objective 4×、10×、40×
√
√
nosepiece
toward quadruple nosepiece, center adjustable
√
√
analyzer
rotatable analyzer with gradation 0°-90°
√
√
bertrand lens
bertrand lens, sliding in out of optical path
√
√
optical compensator
λ slip（first class red）
√
√
1 4λ slip
√
√
quartz wedge
√
√
revolving
round stage
diameter φ160mm, graduated in1° increments, minimum resolution 6’ when using vernier scale
√
√
condenser
abbe condenser with iris diaphragm & filter
√
√
focusing
coaxial coarse & fine adjustment, range 28mm, fine division 0.002mm
√
√
polarizer
sliding in out of optical path, located on the top of collector
√
√
illumination
6v 20w halogen lamp, brightness adjustable
√
√
package size
327*273*425mm
√
√
gross weight
7.5kg
√.

Model
bmp-107b
bmp-107t
viewing head
sliding binocular head at 45°, 360° rotatable
√
sliding trinocular head at 45°, 360°rotatable
√
eyepiece
eyepiece wf10× 18 with scale of crosshair
√
√
eyepiece wf10× 18
√
√
objective
strain free achromatic objective 4×、10×、40×
√
√
nosepiece
toward quadruple nosepiece, center adjustable
√
√
analyzer
rotatable analyzer with gradation 0°-90°
√
√
bertrand lens
bertrand lens, sliding in out of optical path
√
√
optical compensator
λ slip（first class red）
√
√
1 4λ slip
√
√
quartz wedge
√
√
revolving
round stage
diameter φ160mm, graduated in1° increments, minimum resolution 6’ when using vernier scale
√
√
condenser
abbe condenser with iris diaphragm & filter
√
√
focusing
coaxial coarse & fine adjustment, range 28mm, fine division 0.002mm
√
√
polarizer
sliding in out of optical path, located on the top of collector
√
√
illumination
6v 20w halogen lamp, brightness adjustable
√
√
package size
327*273*425mm
√
√
gross weight
7.5kg
√.