MOP Series Microscopy Imaging Objectives

Product Description

• Infinity-corrected, plan (apochromatic) flat-field achromatic design.
• Ideal choice for magnified imaging or light focusing.
• Dry objective designed for air medium between objective, sample, or coverslip.
• Magnification ranges from 5× to 60×, delivering imaging with various magnifications and resolutions.
• Thread for MOP series objectives: RMS (0.800”-36), equivalent to 20.32×0.706 mm.
• Thread for MOPL series objectives: M26×0.705 mm.

 

Model	MOP10X	MOP20X	MOP40X	MOP60X
Magnification	10×	20×	40×	60×
Numerical Aperture (NA)	0.25	0.40	0.65	0.80
Working Distance (WD) (mm)	15.86	1.04	0.67	0.50
Focal Length (f) (mm)	18	9	4.5	3
Resolution (R) (μm)	1.34	0.83	0.51	0.41
Depth of Focus (DF) (μm)	4.4	1.72	0.65	0.43
Object Field of View (mm)	2.5	1.25	0.62	0.40
Image Field of View (mm)	25	25	25	25
Coverslip Thickness (mm)	N/A	0.17	0.17	0.17
Barrel Dimensions (mm)	Ø24×31	Ø24×45	Ø24×46	Ø24×46
Weight (g)	68.6	95.4	88.1	92.1
Applicable Wavelength	400–700 nm	400–700 nm	400–700 nm	400–700 nm
Thread Type	RMS (0.800”-36), 20.32×0.706 mm	RMS (0.800”-36), 20.32×0.706 mm	RMS (0.800”-36), 20.32×0.706 mm	RMS (0.800”-36), 20.32×0.706 mm
Material	Copper barrel, chrome-plated surface	Copper barrel, chrome-plated surface	Copper barrel, chrome-plated surface	Copper barrel, chrome-plated surface

 

Model	MOPL5X	MOPL10X	MOPL20X	MOPL50X
Magnification	5×	10×	20×	50×
Numerical Aperture (NA)	0.14	0.28	0.34	0.5
Working Distance (WD) (mm)	33.61	33.4	29.56	18.9
Focal Length (f) (mm)	40	20	10	4
Resolution (R) (μm)	2.2	1.2	0.8	0.7
Depth of Focus (DF) (μm)	14.03	3.50	2.68	1.19
Object Field of View (mm)	5	2.5	1.25	0.5
Image Field of View (mm)	25	25	25	25
Coverslip Thickness (mm)	N/A	N/A	N/A	N/A
Barrel Dimensions (mm)	Ø34×61.4	Ø36×61.6	Ø36×65.4	Ø36×76.1
Weight (g)	302	302	352	336
Applicable Wavelength	400–700 nm	400–700 nm	400–700 nm	400–700 nm
Thread Type	M26×0.705	M26×0.705	M26×0.705	M26×0.705
Material	Copper barrel, chrome-plated surface	Copper barrel, chrome-plated surface	Copper barrel, chrome-plated surface	Copper barrel, chrome-plated surface

Technical Notes

A microscope objective is a key optical component in microscopes, mainly used to focus light onto the sample and magnify the image. It usually consists of multiple lenses with specific optical designs and parameters, enabling imaging at various magnifications and resolutions.

Barrel Marking Parameters

Low-magnification objectives have a larger clear aperture, providing brighter images and wider fields of view. High-magnification objectives offer significantly stronger magnification but narrower fields and lower brightness, requiring careful focusing to locate targets. The 20×–100× objectives in the MOP series must approach the slide closely for imaging, so they feature a spring mechanism at the tip to prevent crushing the slide.

Each objective comes with a storage case. When not in use, objectives can be stored neatly in the case for dust and moisture protection, ensuring better preservation.

Assembly

Application Examples