Relative Partial Dispersions
N-BK7(H-K9L)				N-BASF64(H-ZBaF20)
Ps,t	0.3071	P's,t	0.3049	Ps,t	0.2390	P's,t	0.2360
PC,s	0.5588	P'C',s	0.6038	PC,s	0.4971	P'C',s	0.5367
Pd,C	0.3073	P'd,C'	0.2562	Pd,C	0.2957	P'd,C'	0.2460
Pe,d	0.2386	P'e,d	0.2370	Pe,d	0.2372	P'e,d	0.2342
Pg,F	0.5359	P'g,F'	0.4761	Pg,F	0.5760	P'g,F'	0.5102
Pi,h	0.7499	P'i,h	0.7447	Pi,h	0.8923	P'i,h	0.8810

Abnormal  Dispersions
N-BK7(H-K9L)				N-BASF64(H-ZBaF20)
△PC,t	0.0171	△PC,s	0.0052	△PC,t	-0.0040	△PC,s	-0.0019
△PF,e	-0.0006	△Pg,F	-0.0005	△PF,e	0.0000	△Pg,F	0.0004

What are the advantages and disadvantages of triplet achromatic lenses?
Advantages:
Effective correction of chromatic aberration: through the combination of different material lenses, chromatic aberration can be significantly reduced to improve imaging clarity.
Aberration correction: spherical and coma correction, the three-element design enables better correction of spherical and coma aberrations, improving image quality.
Design flexibility: optimized design, three lenses provide more freedom to optimize optical performance for different needs.
Relative simplicity: simple structure, compared to more complex systems, the three-piece design is easier to manufacture and assemble.
Disadvantages:
Higher cost: the use of special materials and precision processing increases costs.
Weight and bulk: compared to single or dual lenses, the three-piece design is heavier and larger and may not be suitable for portable devices.
Assembly complexity: precise alignment and adjustment is required during assembly, making it more difficult to manufacture.
Light loss: more lens surfaces may result in light loss and require coating to minimize reflections.

Highly Recommended Optical Lenses from Yutai Optics:
IR Lenses
Double Convex(DCX) Lenses
UV Fused Silica Cylindrical Lens
N-BAF10 / N-SF10 Achromatic Lenses