Shipped in a proper objective jar, packaged in a bubble-lined envelope.
The objective appears to be in a single solid metal casting
and appears undamaged, but cannot focus in my AO 120 infinity microscope.
FWIW, also cannot focus in (finite) Optiphot; return requested.
Front optic is recessed about 1mm into the casting.
vendor offered $15 refund Jul 14
I tested further by holding it backward for far distant view (nearly infinite).
Good infinity objectives can focus a far image on ground glass
at nearly their working distance, but this cannot focus at any distance.
It nearly focuses when touching ground glass, so negative working distance?
Optical elements may be shifted inside, but I sense no looseness.
15 Jul video demonstrating its inability to focus in comparison with another objective:
received 3 Sep 2022 Not Nikon;
optics were corrupted:
.. should show LCD monitor subpixel matrix.
After cleaning, 160/0 (no cover glass) and short working distance
precludes focus on slides with cover glass.
Provoked completion of Afocal clamp for CT phase telescope.
It has adjustment for parfocality:
eBay item number: 234666828369
Condition: Used
Lightly used in excellent optical condition,
a little wear to the lettering is the only cosmetic imperfection to note.
Appearance: Please check the photo carefully!!
Function: It works properly.
Optical system: *CLEAN GLASS* *CLEAN Visibility*
Please judge the performance of the lens by the observed photograph
There are no dirty or scratches that could adversely affect observation
Since it is a used lens, it is not inspected by enlarging it with a magnifying glass.
It has been confirmed with the naked eye under strong light.
There is no dust.
There is no balsam separation.
There is no haze on inside of the lens.
It has no fungus on inside of the lens.
It has no scratch.
Listed lens type / long neck objective lens / mount size RMS 20.25mm
Please purchase after confirming that microscope has 45mm focal and 210 mm tube length.
Primarily for Nikon Optiphot microscope model,
also usable with similar 210 TL scopes from Leitz, Leica, Olympus and Zeiss
with Standard RMS Threads or thread adapters
Tools used to test the objective lens
Microscope Body for Nikon Optiphot Metallurgical Microscope
No condenser. Observed in bright field with epi-illumination.
Nikon Vertical Illuminator
Nikon Nosepiece for RMS 20.25
Genuine Nikon C-mount TV Adapter
USB microscope camera 18 million pixels
Olympus color temperature conversion/daylight filter
Observed CR2032 lithium coin battery
If you don't know the accuracy of the photo I uploaded,
Please purchase CR2032 in the photograph and observe it.
I think you can see that the objective lens I exhibited has a solid accuracy.
eBay item number: 285879647786
Condition: Used
*Excellent* condition
Appearance:Please check the photo carefully!!
Function: It works properly.
The microscope uses BH2 epi-illumination.
I am testing with a CR2032 button battery.
Optical system:*CLEAN GLASS**CLEAN Visibility*
Please judge the performance of the lens by the observed photograph.
There are no dirty or scratches that could adversely affect observation.
Since it is a used lens, it is not inspected by enlarging it with a magnifying glass.
It has been confirmed with the naked eye under strong light.
There is no dust.
There is no balsam separation.
There is no haze on inside of the lens.
It has no fungus on inside of the lens.
It has no scratch.
Dark Optical system: The outside of the lens is divided into 3 parts
There are no dirty or scratches that could adversely affect observation
The outside of the lens is divided into 3 parts, has a diffuser plate that reflects light when used in darkfield, and is used in frosted glass.
Compared to clear vision, there is no problem even if the third part used for night vision is dirty (mold or haze).
There is no problem, but if it is too dirty, I would like to write it for those who care.
This lens is clean enough for dark field observation.
No Problem CLEAN GLASS
Please check the photo carefully!!
Including
Shown on the photo is everything.
eBay item number: 285879647786
Condition: Used
This is a working unit in great Overall condition.
This item was taken out of use only due to department upgrading.
This item comes as pictured.
eBay item number: 115380036288
Condition: Used
Shipped with USPS First Class.
- WORKS FINE, COMES AS SHOWN
- COSMETIC CONDITION IS GOOD, VERY CLEAN, NO SCRATCHES, NO HAZE, NO FUNGUS
- WHAT YOU SEE IN THE PHOTOS IS THE ITEM FOR SELL, NO OTHER ACCESSORIES etc ARE INCLUDED
eBay item number: 304609136243
Condition: Used
The edge of the front lens was cracked, but testing did not affect imaging.
received 23 Sep 2022
Damage appears no worse than in eBay images; it easily passes monitor subpixel viewing test.
In the Optiphot, it is neither fully parfocal and parcentric with the BD Plan 60/0.80,
and contrast is noticeably lower, but an acceptable trade-off for sustantially increased working distance.
WHY USE AN ACHROMATIC LENS? An achromatic objective lens corrects for color
and has a flat field across the central portion of the microscope image.
We use dual lens technology in our compound microscope objective lenses to meet this goal.
This objective lens offers high quality observation without additional chromatic aberration,
which leads to a clearer microscope image.
DESIGNED TO LAST: The microscope objective lens is built with tough,
lab quality materials designed to stand up to everyday use.
Each objective lens goes through a rigorous inspection before shipment
to ensure you receive the highest quality item that you ordered.
HIGHLY COMPATIBLE: The microscope objective lens is engineered to fit microscopes with a 20mm thread
such as AmScope, Canon, Nikon, Bristol, OMAX, Olympus, Swift, TELMU, and many others.
SPECIFICATIONS: 60X Standard NA/0.85, DIN 160/0.17 achromatic objective lens,
Field of view: 0.29mm, Working distance: 0.5mm, Mount size: 20mm thread, 20.2mm standard RMS interface
AMERICAN COMPANY: Reticle Optics is an American microscope lens company.
If you have any problems with or questions about the achromatic objective lens,
our customer service knows this product well and is ready to assist you.
Compared with PL 60 /0.85 160/0,
view of calibration slide without cover glass is much lower contrast.