Equipment

My workhorse, the Olympus BX51

Microscopes

I examine my samples using an Olympus BX51 microscope equipped with Nomarski DIC, phase contrast, and fluorescence, along with various UPlanFl and UPlanApo objectives. I also utilize a Leitz Orthoplan microscope, which features plan apochromatic objectives, standard Köhler illumination, phase contrast, and a Smith T DIC system.

For observation, the material is transferred to standard microscope slides and covered with 24 x 32 mm coverslips. Specimen isolation is performed using custom-made, ultra-thin glass pipettes. These are created by heating a glass tube over a flame until pliable, then carefully pulling both ends to produce a fine pipette. This tool is used directly to collect amoebae, a process requiring considerable patience—and occasionally a fair amount of cursing!

Photomicrography and video

For scanning samples, cultures, and isolating specimens, I rely on a Nikon Diaphot inverted microscope equipped with phase contrast optics. For filming and photographing live specimens, I use a Caozhengwen MTR3 CMOS 26 MP camera on the BX51 microscope and a Canon 5D Mark II on the Diaphot. Image processing and measurements are performed with Adobe Photoshop and ToupView© software. Videos are captured using ToupView and later edited with Camtasia Studio for final presentation.

Penard slide

Slide made by Eugene Penard of Euglypha brachiata, which he sent to Dr. A.A. de Groot. Collection Ferry Siemensma.
Ferry Siemensma, created February 28, 2019; last modified January 23, 2025
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