The following information does not help if you already have a BX series microscope, but it is related to thermal drift so it might be interesting nonetheless. A couple of years ago, I ended up ordering an Olympus AX70 stand. It ended up being lost in the mail and eventually returned to the sender, s...

Just in case, check the friction/brake on the focusing rack before you do any maintenance. This lever may be set too loose. The lever that controls friction is located between the left coarse focus knob and the stand.

This thread is already quite long, so I might be repeating some information already state above. However, here it goes: Non-stained acrylic (=Plexiglas and other names in commercial nomenclature) transmits UV well into the UVB range. Many Acrylic formulations have UV-absorbing dyes mixed in, but not...

Can UV light stop fungus growth inside objective ? The most effective wavelengths for this use are in the UVB and UVC. Most lenses (except the very few ones designed for UV imaging and a handful more) transmit little to no UVA, and no UVB and UVC, so exposing these lenses to UVB and UVC has no effe...

In a worst-case scenario, the window may have been computed as part of the optical system w.r.t. axial chromatic aberration, and removing it may increase said aberration. I have seen several examples of optical windows in Olympus infinite microscopes where a thick optical window has a thin cladding ...

Cooper 2011 - Anesthesia, analgesia, and euthanasia of invertebrates. ILAR Journal 52 (2): 196-204

https://academic.oup.com/ilarjournal/ar ... 52-196.pdf

bralex wrote: ↑

Tue Sep 08, 2020 3:41 pm

I think he's saying "magnesia" not "magnesium" when he talks about the replica.

That would explain it. Magnesia is magnesium oxide, so he may have said the right thing after all.

The speaker does say "magnesium replica", but the formula shown in the presentation seems to say that the replica material is magnesium oxide . While metallic magnesium is opaque to VIS (albeit very reflective), magnesium oxide is trasparent from NUV to IR, see https://www.osapublishing.org/josa/abs...

I will leave some answers to others, but can say that vibration in your setup seems to take an excessively long time to settle at 10x, so you should try to solve this problem. For example, mounting the XY stage atop the scissor jack is probably not the best idea. I would try to reverse the order and...

Hi, Thanks everyone for the suggestions. @Dalantech That's a great idea. It doesn't lend itself to my usual setup with a 105 mm lens (my hands aren't that big :wink: ) but I recently started using the EF-S 24mm for macro, which would be suitable. Still have to figure out if I need to drink more or ...

First of all, in my experience the UIS DIC system is very sensitive to mismatches between objective and DIC prism. For example, on my system the UDP10 prism works well with the UPlanApo 10x 0.40 (from the UIS series) and poorly with the UPlanFl N 10x 0.30 (from the UIS2 series). My recommendation fo...

[...] I quick thought, how about making sure the fan has literally no contact to the heatsink, while also being as closely placed to it as possible? This could work out in our favour. One possible problem is that turbulence created by the fan blades in the air flow can transmit vibrations to the he...

Metabones seems to no longer produce these adapters (I guess they discovered that they can earn more from "smart" Canon to Sony adapters and speed boosters). However, second-hand Metabones "dumb" adapters can still be found on the second-hand market, sometimes at relatively good prices. B&H has thi...

Review of the Green Algal Genus Pediastrum; Implication for Pollen-analytical Research (2001 paper). A relatively bad copy, but better than nothing. Plenty of illustrations. https://www.researchgate.net/publication/233933196_Review_of_the_Green_Algal_Genus_Pediastrum_Implication_for_Pollen-analytica...

About Nikon F to Sony E adapters, it is unfortunately true that most of the cheap ones from China are so-so in mechanical quality. For my Sony FE cameras, I try to use Metabones Nikon F to Sony E adapters, in part because the front and rear bayonets are better than average, and in part because the s...