What is it?

This is a high-performance replacement for the Edmund-Optics DIN Objective to C-mount Tube Assembly (Stock# #54-868). The tube is made of 3D printed PLA with Aluminum connectors. Tube diameter is 35mm and length is 132.5mm.

IF YOU NEED A REPLACEMENT FOR #54-868. This is the part you need, However, if you just need a C-MOUNT adapter, check the All Metal Casing new modular design here: Then select the C/CS mount option.

This is a high-performance product using nominal magnification of the DIN objective for maximal performance. For macro replacement check: https://www.tindie.com/products/mbe2001/microscope-macro-set-for-sony-canon-and-nikon. Material is Matte PLA for the tube, Carbon-Fiber PLA for the mounting ring.

Why did you make it?

I purchased the Edmund-Optics equivalent product to make a high-resolution scanner. The tube performed well under normal light conditions. Unfortunately, when imaging high dynamic range objects (B/W negative) the image was degraded by stray light reflection from the tube walls. This product represent my effort to solve this problem.

What makes it special?

1. The product utilized a patented geometry (US patent 10,788,663) for suppression of stray light reflections.
2. Additionally, the inner surface of the tube is air-brush painted with a primer, and then with Musou Black (https://www.youtube.com/watch?v=8sDGSgcSZJA) - which is the blackest paint commercially available today.
3. The resulting tube has very low reflections from the walls as can be seen at the comparison image.
4. Last but not least the cost is 1/3 or less (depending on the configuration) of the equivalent product and performance is better. Albeit it is less durable than whole metal parts.

Optional accessories include:

1. 35mm mounting ring 1/4-20 tapped hole. (replacement for Edmund-Optics Stock #52-930 for 35mm tube). The mounting ring is made of 3D printed Carbon-Fiber PLA + steel 1/4-20 thread.
2. C to CS 5mm adapter ring.
3. 4x Plan Achromatic DIN (160/0.1) Microscope Objective.

Notes:

1. This is a microscope with a very narrow depth of field. Use of macro focusing rail is highly recommended.
2. Use finite conjugate DIN objectives, preferably PLAN type. Infinity corrected objectives require an expensive tube lens to create an image and will not work without it, and achromatic (non PLAN) may not focus over the entire field of view.
3. Camera is not included. Mounting ring, C/CS adapter ring and and 4x/0.1 Plan objective are optional.
4. Aluminum parts are secured to the PLA, please do not disassemble.
5. Parts are made of PLA, Do not expose to temperatures > 80C (176F).
6. PLA is sufficiently strong for most applications. Please contact me if your application has special requirement.
7. For best performance Musou Black is used, and is not optional for this product. Airbrush painting cost is already included in the price.