Replacement Achromatic Objective 40x with Silver Body for Biological Microscope with Aperture 0.65 and Conjugate Distance of 185 mm
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The replacement achromatic objective with a magnification of 40x is one of the most commonly used objectives in biological microscopy, as it allows for the distinction of individual cells while still observing their arrangement in the specimen. The silver body is marked S40/0.65, indicating the magnification and numerical aperture 0.65. The second line 160/0.17 specifies the mechanical tube length and the thickness of the cover slip for which the optics are designed. The objective operates dry, without immersion oil, and the achromatic correction reduces colour fringes at the edges of observed structures. The conjugate distance of the objective is 185 mm, which is a parameter that must correspond to the optical system of the microscope into which the objective is mounted.
- Magnification 40x – in conjunction with the microscope eyepiece, it allows for viewing the shape of cells, cell walls, and other details in both plant and animal specimens, while still keeping their surroundings visible in the field of view.
- Numerical Aperture 0.65 – the specification marked on the casing just after the magnification, which places the objective among other objectives and allows for comparison with the existing equipment of the microscope.
- Tube Length and Cover Slip – the marking 160/0.17 means that the objective is designed for microscopes with a tube length of 160 mm and for specimens covered with a slip of 0.17 mm thickness.
- Without Immersion Oil – the objective does not have an OIL marking, so there is air between the lens and the cover slip, and there is no need to clean the lens from oil after observation.
- Light Blue Stripe – the colour marking on the casing helps to quickly locate the objective in the revolving nosepiece, while the black knurled ring provides a firm grip when screwing it in.
- Compact Shape with Thread – the objective screws into the free position of the revolving nosepiece or replaces a worn or damaged piece of the same magnification without needing to change other parts of the microscope.
Contents of the Package:
- 1x Achromatic Objective 40x
The 40x objective is used very frequently in microscopy, making it worthwhile to keep it in good condition within the assembly. When the original objective is scratched, dirty, or missing, this piece with the same magnification can replace it, provided it matches the conjugate distance of 185 mm and the tube length of the microscope. As this is a dry objective, working with it is quick and suitable for novice users who are not yet working with immersion. When focusing, it is advisable to start from a lower magnification, first finding the desired spot and then switching to forty times magnification to fine-tune the sharpness with the fine adjustment screw. The objective finds application in school collections, during natural science lessons, and in home laboratories, where it is used to observe, for example, plant sections, smears, or drops of water from a pond.
Seller: Alderin
Dispatched within 1 working day (Mon–Fri) – orders paid for by 14:00 Irish time are processed on the same working day.
Availability: In stock
Transit: 5–13 working days – transit takes place on working days (Mon–Fri).
In total, please allow 5–14 working days from payment of your order.
Delivery is only possible to addresses in Ireland.
Delivery to address: €1.59
Returns
Deadline: 30 days from receipt of the goods, without giving any reason
How: notify us of your withdrawal at info@lunzo.ie and send the goods by post to the returns address:
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
Spain
Once you have sent the parcel, send us the proof of dispatch with the tracking number to info@lunzo.ie – this lets us process your return as quickly as possible and refund you without waiting for the parcel to arrive.
Product condition: you can also return goods that have been used or unpacked, or that no longer have their original packaging or tags
Costs: you pay the postage for sending the goods back to Spain; we charge no return fee
Refund: within 14 days of receiving your notice of withdrawal; we may withhold the refund until the goods have arrived back or until you provide proof that you have sent them
Exchanges
Deadline: 30 days from receiving your parcel (exchange for a different size, colour or variant)
How: write to us at info@lunzo.ie, giving your order number and the variant you want – once we have checked that it is available, we will send you instructions for the exchange, including the address to which you should send the original item
Costs: you pay to send the original item back; the new variant will be sent to you at no further charge
Faulty or damaged goods
Period for claiming a fault: up to six years from delivery of the goods – within the first 30 days you can reject a faulty product and ask for a full refund, and for the first 12 months a fault is presumed to have been present on delivery
How: write to us at info@lunzo.ie and attach a photograph or a video of the goods – in most cases you do not have to send the goods back
Remedies: a replacement with a new item, a reasonable price reduction, or a refund of the full purchase price
You will find the details in Delivery and Payment, Returns and Exchanges, Faulty Goods.
Seller:
Shenzhen Thousandshores Technology Co., Ltd
Address: Room 1101, Building B, Lotus Plaza, No. 3186 Nanshan Avenue, Nanshan District, Shenzhen, China
E-mail: qianan@1000shores.cn
Telephone: +86 178 4108 8696
Manufacturer:
Shenzhen Thousandshores Technology Co., Ltd
Address: Room 1101, Building B, Lotus Plaza, No. 3186 Nanshan Avenue, Nanshan District, Shenzhen, China
E-mail: qianan@1000shores.cn
Telephone: +86 178 4108 8696
EU responsible person:
Thousandshores Deutschland GmbH
Address: Bredowstraße 17, 22113 Hamburg, Germany
E-mail: de-info@1000shores.com
Telephone: +49 40 55821900