6) MICROSCOPY – Lighting
The Celestron has TWO light sources. If you were making images of the veins in a bug’s wings, the overstage light source shining down on the bug (Argulus?), would be a boon. For our purposes it’s useless, or even hampering. Do not use the above-stage light source for microscopic fish parasite detection. The substage light source is impressive and adjustable. There is an impressive “iris diaphragm” under the stage. It’s not an iris diaphragm but in fact, a DISC diaphragm, which is a wheel with various apertures in it. Apertures which concentrate the light, increasing contrast. You need to choose the SMALLEST aperture. The disc is also unique to anything I’ve seen in that it also has color enhancing discs in it, which could allow you to enhance an H&E stain for example. I don’t think that’s going to have any utility to us doing light contrast microscopy.
ABOUT THE IRIS DIAPHRAGM UNDER THE STAGE
Enter your email address for a free PDF of this article including its images.Enter your Email Address
My Favorite Amazon Recommendations
Items and content will not show in "Reader View" check your browser.
PraziPro for Flukes
Buy Some Good Koi?
Best Food, Ever
Pro Air 60 Aerator is a VERY high output air pump pushing my whole fish room (17+ drops), and I have one at home driving everything there, and I have one as a back up.
Topical For Koi and Pond Fish Ulcers
Koi Health & Disease
I have over ten of these Titanium Heaters in my fish room and at home. They're a paradigm shift in aquarium heating. They're titanium and 400W for under $30! Whaaaaaaaaat?
CyroPro by Hikari is safe and easy for Anchor Worms and Fish Lice.
Whatever heaters you use, back yourself up with a temperature controller, it'll turn on, and off your heaters. If your heater seizes "on" at least the thermostat will stop a tragedy.
LifeGuard by Tetra is a tablet version of a tame 'chloramine-t' or 'halamid' compound that's easy to get and good on bacterial infections, in baths.
For me, filtration-of-choice
Rubber sided, round, nettable tanks
1200 Watt heater, on a thermostat held securely above the waterline, works GREAT as a large tank heater. That's all I'll say because there's risk of electrocution and all that. But then, even in a bucket you could get killed. Sound like fun?
What Does Ajax Eat?