AmScope Dry & Oil Darkfield Condenser & Plan Iris Objective Set for Compound Microscopes
Key Features
- Darkfield condensers allow you to render detail in specimens that would otherwise be transparent.
- This set includes a dry darkfield condenser for lower magnifications, an oil darkfield condenser for higher magnifications, and a specialized 100X objective lens with a built-in iris to control its aperture for increased contrast.
- Compatible models include: B340, T340, B400, T400, B450, T450, B460, B490, T490, B590, T590, B600, T600, B680, T680, M220, M600
Darkfield condensers allow you to render detail in specimens that would otherwise be transparent. Using principles of light-diffraction to suppress field-illumination, the condenser illuminates edges of cells, microorganisms, and other objects. This is particularly useful for live blood analysis. This set includes a dry darkfield condenser for lower magnifications, an oil darkfield condenser for higher magnifications, and a specialized 100X objective lens with a built-in iris to control its aperture for increased contrast.
The dry condenser works with objective lenses with numerical apertures below 0.9, including most lenses up to 40X. For higher magnifications, the oil condenser provides optimal brightness and contrast. By placing immersion oil between the oil condenser and the specimen slide, high numerical apertures can be achieved with maximum brightness. While this will work with 100X objective lenses, the darkfield effect loses contrast with increased aperture. A special 100X plan-achromatic darkfield objective lens is included, with the ability to lower its NA through the use of an internal iris. An adjustment collar on the lens allows you to easily adjust the aperture until optimal darkfield is achieved.
This set is designed to work with compound microscopes with a 37mm bottom-mount condenser holder. Compatible models include: B340, T340, B400, T400, B450, T450, B460, B490, T490, B590, T590, B600, T600, B680, T680, M220, M600
| Condenser Compatibility | |
| Condenser Mount | Bottom mount |
| Mounting Diameter | 37mm |
| Model Compatibility | B340, T340, B400, T400, B450, T450, B460, B490, T490, B590, T590, B600, T600, B680, T680, M220, M600 |
| Condenser Specifications (Dry) | |
| Numerical Aperture | 0.7-0.9 |
| Immersion Medium | none |
| Condenser Specifications (Oil) | |
| Numerical Aperture | 1.25-1.36 |
| Immersion Medium | oil |
| Objective Lens Compatibility | |
| Optical System | Finite |
| Mechanical Tube Length | 160mm |
| Mounting Thread | RMS 20.32mm |
| Parfocal Distance | 45mm |
| Objective Lens Specifications | |
| Magnification | 100X |
| Numerical Aperture | 0.31 to 1.25 |
| Corrections | Plan-achromatic |
| Cover-glass Thickness | 0.17mm |
| Nosecone | Spring |
| Immersion Medium | Oil |
| application | Condenser-Compound |
| condenser application | Compound |
| condenser immersion | Oil |
| condenser iris | Without Iris |
| condenser microscope model | B490 Series, T490 Series |
| condenser optics | Condenser-NA 0.7-0.9, Condenser-NA 1.36-1.25 |
| condenser type | Darkfield |
| immersion | Condenser-Dry, Condenser-Oil |
| Manufacturer | AmScope |
| mounting size | Objective-20mm |
| product condition | NEW |
| prop 65 |
|
| type | Condenser-Darkfield |
AmScope products are warranted against manufacturer’s defects in material and workmanship from the original date of purchase, for the following years:Â
• Five Year Warranty for Microscopes: All our microscopes come with a five (5) year factory warranty against manufacturing defects, covering labor and parts.Â
• Ten Year Warranty for Euromex Microscopes: All our Euromex microscopes come with a ten (10) year factory warranty against manufacturing defects, covering labor and parts.
• One Year Warranty for Telescopes: All our telescopes come with a one (1) year warranty, except when specified in the description.Â
• One Year Warranty for Accessories: All our microscope accessories (USB cameras, illuminators, illumination, dust covers, and etc.) come with a one (1) year warranty, except when specified in the description.
• One Year Warranty for Items labeled as “Product Ships From Manufacturer”: All products that are shipped directly from the manufacturer come with a one (1) year warranty, except when specified in the description.Â
Warranty does not apply for consumable accessories and parts such as bulbs, batteries, fuses, cords, optical components or any add-on accessories such as mechanical specimen holders that are not built into the microscope stage as an integral part of the original manufacture, etc. Warranty does not cover microscopes, lenses cameras or other accessories that have become inoperable due to dirt or damage due to misuse or lack of maintenance.Â
Note: Buyers are responsible for return shipping and handling cost for warranty services. Our warranty covers parts and labor only.
Darkfield condensers allow you to render detail in specimens that would otherwise be transparent. Using principles of light-diffraction to suppress field-illumination, the condenser illuminates edges of cells, microorganisms, and other objects. This is particularly useful for live blood analysis. This set includes a dry darkfield condenser for lower magnifications, an oil darkfield condenser for higher magnifications, and a specialized 100X objective lens with a built-in iris to control its aperture for increased contrast.
The dry condenser works with objective lenses with numerical apertures below 0.9, including most lenses up to 40X. For higher magnifications, the oil condenser provides optimal brightness and contrast. By placing immersion oil between the oil condenser and the specimen slide, high numerical apertures can be achieved with maximum brightness. While this will work with 100X objective lenses, the darkfield effect loses contrast with increased aperture. A special 100X plan-achromatic darkfield objective lens is included, with the ability to lower its NA through the use of an internal iris. An adjustment collar on the lens allows you to easily adjust the aperture until optimal darkfield is achieved.
This set is designed to work with compound microscopes with a 37mm bottom-mount condenser holder. Compatible models include: B340, T340, B400, T400, B450, T450, B460, B490, T490, B590, T590, B600, T600, B680, T680, M220, M600
| Condenser Compatibility | |
| Condenser Mount | Bottom mount |
| Mounting Diameter | 37mm |
| Model Compatibility | B340, T340, B400, T400, B450, T450, B460, B490, T490, B590, T590, B600, T600, B680, T680, M220, M600 |
| Condenser Specifications (Dry) | |
| Numerical Aperture | 0.7-0.9 |
| Immersion Medium | none |
| Condenser Specifications (Oil) | |
| Numerical Aperture | 1.25-1.36 |
| Immersion Medium | oil |
| Objective Lens Compatibility | |
| Optical System | Finite |
| Mechanical Tube Length | 160mm |
| Mounting Thread | RMS 20.32mm |
| Parfocal Distance | 45mm |
| Objective Lens Specifications | |
| Magnification | 100X |
| Numerical Aperture | 0.31 to 1.25 |
| Corrections | Plan-achromatic |
| Cover-glass Thickness | 0.17mm |
| Nosecone | Spring |
| Immersion Medium | Oil |