Skip to content

AmScope PA100X-INF-IRIS Infinity Plan Achromatic Darkfield Objective Lense with 100X Magnification

$422.99

● In stock

Buy at AmScope →

Price and availability may change. Click to see current details on AmScope.

About this product

This is a 100X objective lens with a variable-NA iris for applications such as dark-field microscopy. Standard bright-field objective lenses present low contrast due to their high numerical apertures. This lens' built-in iris provides control over the aperture, varying between 0.36 and 1.25. This allows for the intensity of the dark-field contrast to be easily adjusted. Designed for infinity-corrected microscopes with RMS thread, this lens features both chromatic and spherical corrections, providing sharp, focused images. It is designed to be used with immersion oil, and has a spring nosecone to prevent damage to the lens or specimen. Compatibility Optical System Infinite Reference Focal Length 180mm Mounting Thread RMS 20.32mm Parfocal Distance 45mm Lens Specifications Magnification 100X Numerical Aperture 0.36 to 1.25 Corrections Plan-achromatic Cover-glass Thickness 0.17mm Nosecone Spring Immersion Medium Oil

Shop AmScope PA100X-INF-IRIS Infinity Plan Achromatic Darkfield Objective Lense with 100X Magnification from AmScope for $422.99. Compare prices, check for active coupons, and get the best deal on Love Those Deals.

Are There Active AmScope Coupons for This Product?

Coupon Code ⚠️ Unverified
Expires Jun 6
AmScope

Save 5% Off Orders of $150 or More! Shop Am Scope Now! Use Code: 5FORYOU

••••••••

We earn a commission if you shop through this link.

% Off ⚠️ Unverified
Expires Mar 2
AmScope

Save 15% on Globe Scientific Lab Supplies at AmScope!

No Code Needed
Get Deal

We earn a commission if you shop through this link.

% Off ⚠️ Unverified
Expires Nov 10
AmScope

Omax Science Savings Event: Save up To 60% on Microscopes and Accessories — Limited Time Only!

No Code Needed
Get Deal

We earn a commission if you shop through this link.

% Off ⚠️ Unverified
Expires Jul 17
AmScope

Best Deals on Microscopes and Accessories Plus Free Shipping on US Orders!

No Code Needed
Get Deal

We earn a commission if you shop through this link.

More from AmScope

?

Frequently Asked Questions

How much does AmScope PA100X-INF-IRIS Infinity Plan Achromatic Darkfield Objective Lense with 100X Magnification cost?

AmScope PA100X-INF-IRIS Infinity Plan Achromatic Darkfield Objective Lense with 100X Magnification is $422.99 at AmScope. Prices may change — click through to AmScope for the latest.

Is AmScope PA100X-INF-IRIS Infinity Plan Achromatic Darkfield Objective Lense with 100X Magnification in stock at AmScope?

Yes, AmScope PA100X-INF-IRIS Infinity Plan Achromatic Darkfield Objective Lense with 100X Magnification is currently in stock at AmScope.

Are there coupon codes for AmScope?

Yes — Love Those Deals currently tracks 4 active AmScope coupons. See the coupons section on this page to copy a code before checkout.

Specifications

Category
Objective
SKU
40347679064239
Last updated Jun 13, 2026