Troika Construction Graphite Mechanical Pencil

Great lead supply for my mechanical pencil. These are very thick and so far, not a single has broken even when I extend a bit. Very happy with these lead refills.

I do protect with filters and find the B&W offers both excellent mechanical construction with good glass. More expensive, but so are the lenses I pair it with.

Awesome rigidity, quality construction, and the industrial/mechanical suction cups are insanely strong! I use this product with my Panasonic GH5! I was sure there was gonna be some drawback in regards to its affordable price point, however, I was wrong!

Exquisite optics and mechanical construction. Built to the level of quality expected in professional scientific instruments. 85mm aperture is perfect balance between portability and adequate light gathering power for most viewing situations. Haven’t used it much yet because of winter weather, but views of M42 exhibited high contrast with excellent resolution of 4 Trapezium stars at 67x. Views of the moon are very crisp and richly detailed along the terminator.

First off, the mechanical feel and construction of this lens is quite impressive. Even moreso, considering the reasonable price point. I own the Nikkor 85mm f/1.4 and although it is lighter and smaller, I am likely going to use the Sigma more, because of the sharpness, build and feel, and image. Wow, Sigma has come a long way from their early days. It's been a long time since I've owned Sigma lenses, decades, in fact.

Found that gear slides on and off the rods much easier than the graphite rods

Nice pencil.

The best mechanical hard drive I had ever used.

I never realized I could be such an artist. This pencil can do it all.

I have never owned an Apple Pencil but I do not know that I would need one after using this one.