Camera Body: OM SYSTEM OM-1 Mark II
The heart of my setup is the Olympus OM-1 Mark II.
I chose this camera because all my favorite macro photographers were using it. I think it's a good idea to just copy the gear that your favorite photographer uses.
People love this camera for its focus bracketing and focus stacking features. I can take 100s of photos at different points and the camera will add them all together.
Metabones EF-M43 Mount Adapter
This adapter allows me to connect Canon EF lenses to my Micro Four Thirds Olympus camera body.
Without it, the Canon lens simply wouldn’t physically fit the camera.
Adapters like this are extremely important in custom macro setups because microscope photography often combines equipment from multiple systems:
camera body
- camera lens
- microscope objective
- specialty adapters
Macro photography is basically scientific LEGO.
Canon EF 200mm f/2.8L II USM
This lens is one of the most important parts of the entire setup.
Normally, this would be used as a telephoto photography lens. But in my setup, it acts as a tube lens.
Modern microscope objectives like the Mitutoyo 5x M Plan APO Objective are “infinity-corrected” objectives. That means they do not project an image directly onto the camera sensor by themselves.
Instead, they send parallel light rays out the back of the objective. A second lens — called the tube lens — is needed to focus those rays onto the camera sensor.
Many microscope objectives, especially Mitutoyo objectives, are designed around a 200 mm tube lens standard. That’s why a 200 mm lens is commonly used in high-end photomacrography setups.
The Canon 200mm f/2.8L II is popular because it:
- is extremely sharp
- has low optical aberrations
- produces a flat field
- has excellent contrast
- works beautifully with microscope objectives
It basically becomes the bridge between the scientific optics and the camera sensor.
Sensei PRO 72-52mm Aluminum Step-Down Ring
This piece screws onto the front of the Canon 200 mm lens.
The purpose of the step-down ring is to reduce the filter thread size so additional adapters can connect to the lens.
In extreme macro photography, adapter chains are very common because microscope objectives use completely different mounting standards than camera lenses.
This tiny metal ring is what helps connect the photography world to the microscopy world.
BD M26x36tpi Microscope Objective to M52 Adapter
This adapter connects the microscope objective to the front of the Canon lens.
It screws onto the step-down ring and converts the threading system so the microscope objective can physically attach to the setup.
Microscope objectives use highly specialized thread sizes, and the Mitutoyo 5x M Plan APO Objective uses a BD M26x36tpi threading standard.
Without this adapter, the microscope objective would just sit there looking mysterious and expensive.
Mitutoyo 5x M Plan APO Objective
This is the actual microscope objective that creates the extreme magnification.
Unlike a normal macro lens, microscope objectives are designed for scientific imaging and can resolve incredibly tiny details with very high sharpness.
The “APO” in M Plan APO means the lens is apochromatically corrected, which helps reduce chromatic aberration and keeps colors sharp and clean.
I chose the 5x version instead of the 10x because I use a Micro Four Thirds camera.
Since Micro Four Thirds sensors already crop tighter than full frame, a 10x objective would have been extremely magnified and difficult to work with:
- smaller field of view
- harder lighting
- more vibration sensitivity
- shallower depth of field
- more difficult stacking
The 5x gives me a better balance between:
- magnification
- usability
- composition flexibility
- image quality
It’s still wildly magnified — enough that tiny fungal textures start looking like alien landscapes.