MicrobeHunter.com Microscopy Forum

The iris diaphragm of the condenser can be closed some to increase contrast with the low magnification objectives yes , particularly the 4X but not so much the 10X and very little for the 40X. Closing the diaphragm too much will cause a loss of resolution. With some practice you can find the optimu...

I see the dirt specks on the slides as stationary. However, I also see many black speck and lines on the FOV that move around with my head motion. Does this indicate dirt in the optical train? I believe I've answered my own question. A few gentle fluffs with an eyeglass cleaning cloth on the eyepie...

My 'scope arrived today. Exactly on the last day of the span originally given by eBay. Of course, the FedEx driver left the box directly under the melting snow water drops coming off of the roof in front of the garage doors. Luckily, I saw the box before it had been able to get soaked through. A tho...

Good afternoon, folks, I am Stephen, and I'm brand new here. I had a microscope way way back when I was a kid, and I remember having a great time with it. As I recall it was a tiny thing, made of metal with black crinkled paint on it. Nothing was interchangeable, just one eyepiece and whatever the t...