This picture below is just an example
![Image](https://i.ebayimg.com/images/g/bMcAAOSwOuJgdeqd/s-l960.jpg)
Anyone ever used it? How does it perform?
Thanks, I would skip this one as I do not have the eyepieces at all.apochronaut wrote: ↑Mon May 27, 2024 9:05 amIt is silicone immersion but if you can pull that off the image quality will be quite high with the following provisos. It is messy.
I have not used that objective but there are some characteristics of the short barrel Olympus objectives that one would need to be aware of before considering using one. While they are a standard 160mm finite tube objective , the parfocal length is a unique 36.65 mm, making them only parfocal with other short barrel Olympus objectives. You could also use it mixed with a few other objectives : U.S.A. made Bausch & Lomb 160mm apochromat objectives and those made for the Bausch & Lomb Galen I microscope, however the SI requirement would make mixing it with dry or oil objectives, pretty annoying.
The other thing about them that bears note is that they require a high degree of compensation in the eyepiece, more than most other 160mm Apos.Without that degree of compensation , for instance if you tried to use them with any number of eyepieces that had a more neutral character, even Olympus eyepieces made for the long barrel 160mm objectives , there will be residual over correction resulting in an undesirable level of peripheral ca, and most likely some field curvature.
With the correct Olympus Bi 10X eyepieces they will be plan to only an 18mm f.o.v.
I think there is an old thread related to this same objective, you could try to look up.