Check the listing for details. 40X (Spring) Achromatic Microscope Objective for Compound Microscopes 20mm. Condition: New – Open box. Listed at 31.00 USD. Experience unparalleled clarity in your scientific research with the AmScope Achromatic 40X Microscope Objective. Designed to fit most standard compound microscopes, this objective boasts a 20mm mounting thread diameter, making it a versatile addition to your lab essentials. The model A40X-V300 is crafted to deliver precision and durability, with a magnification power that ensures detailed observation of specimens. Whether you're in the field of healthcare, lab work, or industrial settings, this microscope objective is an indispensable tool for accurate examination and analysis. Its robust construction and high magnification capabilities make it an ideal choice for professionals who demand reliability and performance in their scientific endeavors.