Features:
1. Aluminum alloy shell is precision machined, stable and for long time use.
2. This is a 4X achromatic objective lens for biological microscope.
3. It can eliminate unwanted reflections and increase contrast.
4. Offers observation of no extra chromatic aberration, makes the picture clearer.
5. The length of the objective lens is 30.5mm, easy to use.

Specification:
Item Type: Achromatic Objective Lens
Material: aluminium alloy + optical lens
Colour: as shown in the pictures.
Magnification: 4X
Tube length: 160 mm/6.3 inches.
Conjugate Distance: 185
Coverslip thickness: 0.18mm
Objective Lens Length: 30.5mm
Mounting size: 20mm (standard RMS thread)
Item size: 5 x 5 x 5 cm / 2.0 x 2.0 x 2.0 inches.
Package weight: approx. 41g

Packing List:
1 x achromatic objective lens