List of Objectives

This page aims to document compatibility between various objectives such as threading and optical properties

Threading compatibility

RMS threads are the traditional gold standard

M25 threads include:

• Olympus?

M26 threads include:

• Nikon BD: M26x0.75 mm
• Mitutoyo: M26x36tpi (M26x0.71 mm)
• Generally these two are compatible

List

Vendor	Series	Thread	Tube length (mm)	Parafocal distance (mm)	Mag	Year	Notes
Edmunds	HR Apo
Mitutoyo	LCD Plan LCD Plan NUV LCD Plan NIR	M26x36tpi	∞				For repairing LCD screens Corrected for thick coverglass (ex: ∞ / 0.91) Thickness range varies Made to order?
Mitutoyo	M Plan Apo	M26x36tpi	∞				400 to 800 nm
Mitutoyo	M Plan Apo NIR	M26x36tpi	∞				1064 nm
Mitutoyo	M Plan Apo NUV	M26x36tpi	∞				355 nm
Olympus	A	RMS	160	45
Olympus	Apo	RMS	160	36.65
Olympus	C	RMS	160	36.65
Olympus	CDPlan	RMS	160	45
Olympus	CPL	RMS	160	36.65
Olympus	DApo	RMS	160	45
Olympus	DPlan	RMS	160	45
Olympus	DPlan	RMS	160	45
Olympus	EA	RMS	160	45
Olympus	FL	RMS	160	36.65
Olympus	LWDC	RMS	160	36.65
Olympus	LWDCA	RMS	160	45
Olympus	CDPlan	RMS	160	45
Olympus	LWDCPlan	RMS	160	36.65
Olympus	LWDMPlan	RMS	210	36.65
Olympus	MSPlan	RMS	∞ f=180	45
Olympus	MSPlan	RMS	∞ f=180	45
Olympus	NeoSPlan	M26	∞ f=180	45
Olympus	M	RMS	210	36.65
Olympus	MA	RMS	∞ f=180	45
Olympus	MDPlan	RMS	∞ f=180	45
Olympus	MNH	RMS	210	36.65
Olympus	MNM	RMS	210	36.65
Olympus	MPL	RMS	210	36.65
Olympus	MPlan	RMS	210	36.65
Olympus	MPLL	RMS	210	36.65
Olympus	MPO	RMS	210	36.65
Olympus	MSPlan	RMS	∞ f=180	45
Olympus	MSPlan	RMS	∞ f=180	45
Olympus	MUVFL	M26	∞ f=180	45
Olympus	MIRPlan	RMS	∞ f=180	45
Olympus	MSPlan	RMS	∞ f=180	45
Olympus	NeoSPlan	M26	∞ f=180	45
Olympus	NCDPlanFL	RMS	160	45
Olympus	NCSPlan	RMS	160	45
Olympus	NCSPlan	RMS	160	45
Olympus	NCUVFL	RMS	160	45
Olympus	NDA	RMS	160	45
Olympus	NEA	RMS	160	45
Olympus	Neo	M25	210	36.65
Olympus	NeoDPlan	M26	∞ f=180	45
Olympus	NeoPlan	M25	210	36.65
Olympus	NeoSPlan	M26	∞ f=180	45
Olympus	NH	RMS	160	36.65
Olympus	NM	RMS	160	36.65
Olympus	PL	RMS	160	36.65
Olympus	Plan	RMS	160	36.65
Olympus	Plan	RMS	160	36.65
Olympus	Plan	RMS	160	36.65
Olympus	PLL	RMS	160	36.65
Olympus	PO	RMS	160	36.65
Olympus	PS	RMS	160	36.65
Olympus	SPlan	RMS	160	45
Olympus	SPlan	RMS	160	45
Olympus	SPlan	RMS	160	45
Olympus	UVFL	RMS	160	45
Olympus	WIMSPlan	RMS	∞ f=180	45
Olympus	WPlan	RMS	160	45
Olympus	WPlan	RMS	160	45
Olympus	WPlan	RMS	160	45

Where:

• Mag: magnification range availible
• SF: strain free (ie DIC, POL/polarizing, etc)
• RMS: Royal Microscope Society (RMS) 0.8" diameter x 36 thread-per-inch (TPI)
• M25: 25 mm diameter
• M26: 26 MM diameter

Olympus: much info from [Objective designations]

References

1. 1. Objective designations for BH and BH-2 microscopes [Objective designations]: http://www.alanwood.net/photography/olympus/microscope-objectives.html]]