The high magnification biological microscope BM-500 can be widely used in laboratories, agricultural science institutes, research institutes, and higher education institutions for academic observation, teaching, professional research, etc. This product has a novel design and adopts various advanced structures and technologies, making the instrument easy to use, safe and reliable.

ministry document	rule grid	BM－500M	BM－500B	BM－500T
observation head	Monocular head Hinged binocular head, pupillary distance55-75mm. Hinged three eyed headPupil distance55-75mm.	● ○ ○	○ ● ○	○ ○ ●
eyemirror	Wide-angle eyepieceWF10X-18mm Wide-angle eyepieceWF15X-13mm Wide-angle eyepieceWF20X-11mm	● ○ ○	● ○ ○	● ○ ○
Achromatic objective lens	DIN achromatic objective 4X/NA0.10 DIN achromatic objective 10X/NA0.25 DIN achromatic objective 40XR/NA0.65 DIN achromatic objective 60XR/NA0.85 DIN achromatic objective 100XR(oil)/NA1.25	● ● ● ○ ●	● ● ● ○ ●	● ● ● ○ ●
converter	Internal positioning three hole converter Internal positioning four hole converter	○ ●	○ ●	○ ●
flatTaiwan	Double layer mechanical platform, platform size:132mmX142mm.	●	●	●
condenser	N1.25Abbe spotlight with variable light bar	●	●	●
photobright	halogen lamp6V/20W , AC85－230V.	●	●	●
Optional parts	Phase contrast device Dark field device Simple polarization Camera device	○ ○ ○ ○	○ ○ ○ ○	○ ○ ○ ○
packaging	Each microscope is put into a foam box, and then into a small carton. Outer box dimensions:36.5X25.3X46.8cm Handheld wooden crate aluminum alloy case	● ○ ○	● ○ ○	● ○ ○