Analysis:
First of all, people who can carry the "Invincible Rabbit" around the world are probably not short of money, and the price is almost negligible.
Secondly, most first-time SLR users use medium and long zoom lenses. Since you have to use a fixed focus, I guess you have a lot of medium and long zoom lenses.
Finally, a spittoon is not an option, because the performance of Canon's own spittoon may not be lower than that of a Carl Zeiss head, which means you need a wide-angle fixed focus below 50.
There are two types of Carl Zeiss wide-angle fixed focus: one is 28/2.0, and the other is 35/1.4.
28 is mostly the lower limit of wide angle. If you choose less than 28, I personally think it is better to use fisheye. Fisheye is severely distorted and cannot be used more frequently than wide-angle. So you should choose between 28 and 35.
Considering the scenery, the difference between 28 and 35 is not very big, so choose the aperture. 1.4 aperture should be more popular than 2.0, so 1.4 should be the first consideration.
Conclusion: Carl Zeiss 35/1.4 should be a more suitable choice.
Personal suggestions, for reference only.
Answer to follow-up questions:
Characteristics of Carl Zeiss lenses (comparison between Carl Zeiss and Canon lenses): The lens has high light transmittance and bright colors, but poor grayscale control. It is a creative lens.
Canon lens features: Fluorite lenses have extremely high color reproduction rates, and the mastery and control of grayscale is difficult to achieve with other lenses. Belongs to the descriptive restoration lens.
If you are taking photos of people, it is recommended that Invincible Rabbit choose a Canon lens.
Because grayscale is based on the naked eye observation value of human skin.
The IS (anti-shake) USM (ultrasonic motor) of Canon lenses is a unique technology patent. Currently, only Canon and Nikon use lens-body anti-shake, while the others use body-body anti-shake.
The advantages of lens anti-shake: fast response, high-speed and accurate dynamic capture, and obvious anti-shake effect. Disadvantages: The price is too high.
The anti-shake feature of the body is very low. Disadvantages: Very slow response speed, no capture function, poor anti-shake effect.
Advantages of ultrasonic motors: fast, quiet, accurate, and energy-saving. Disadvantages: The price and manufacturing process requirements are too high.
Don’t worry about the mount issue. Nikkor will never produce EF mount lenses, and Canon will never produce F mount lenses, because in the earliest days, Nikon and Canon were partners, and Canon only produced the body. , Nikon only produces supporting lenses for it. The latter two families independently became eternal enemies.
However, each model of product produced by an open supporting manufacturer like Carl Zeiss is equipped with at least two bayonet mounts: one is the Canon EF mount, and the other is the Nikon F mount (Nikon A The bayonet requires an adapter ring).
But as far as I know, the transmission chips of all non-Canon original lenses such as Sigma, Tamron, Zeiss, etc. are decoded. Action delays and decoding errors often occur, and the actual performance is not as good as Canon original lenses.