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CoastalOpt f4 60mm Apo Macro - A useful tool for multispectral work

Dr Klaus Schmitt

Dr Klaus Schmitt

Well-known member
Had the chance to get a barely used one...

Here is the official maker site JENOPTIK [who bought Coastal Optical Systems]:
https://www.jenoptik.com/products/o...jective-lenses/multispectral-objective-lenses

Coastal Opt 60mm Macro Apo UV-VIS-IR Image 2021-01-28 at 11.40.05_(c).jpg
 
Dr Klaus Schmitt

Dr Klaus Schmitt

Well-known member
There ARE ALREADY QUARTZ AND FLUORITE lens elements in this lens, but to color correct it from UV to near IR
needs glass with a very differert refractive index...

Not much happens belows 320nm anyway in biology, only combustion processes need to go down to 280nm or thereabouts.
 
Last edited:
Asher Kelman

Asher Kelman

OPF Owner/Editor-in-Chief
Dr Klaus Schmitt said:
There ARE ALREADY QUARTZ AND FLUORITE lens elements in this lens, but to color correct it from UV to near IR
needs glass with a very differert refractive index...

Not much happens belows 320nm anyway in biology, only combustion processes need to go down to 280nm or thereabouts.
Click to expand...
Nucleic acid peaks at 260 nm!!
 
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