Pál_K
Cameras. I has it.
I'm surprised how many of you artificially limit yourselves by carrying only one lens. I can't do that, if I see something I want to photograph, I need to GET THE SHOT; and that means having the right lens for the job. I've been doing this so long that I can look at a scene and instantly know what lens I want to use for it.
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An interesting statement which deserves its own thread.
As you are a professional photographer, I can understand your viewpoint and am not disputing it. I think there's also another approach - at least for the amateur or hobbyist.
In 1971 I started with the normal 55/2 lens that came with my new Pentax - it was all I could afford. When I could get another lens, I chose to "wait until I mastered the normal lens". So I used the 55/2 lens as my only lens for 15 years (but still not a master 🙂 ). I learned to see everything with a view of how to capture it with that lens. I never felt I missed anything.
Today, with many more cameras and lenses, I still choose to photograph with essentially one camera and one lens at any one time. Part of the reason is my wish to travel light, but also when I use a particular lens, such as 28mm or 90mm, I look at scenes differently - appropriate to the lens I have.
Being interested mostly in neighborhood, city, architecture, nature, and landscapes, perhaps there is no pressing need to have the right lens at the right time. If I see something somewhere where I know the image needs to be captured within a certain focal length range, I know I can almost always do that later.
Yet, even for trips across the country or even to other countries, I've still taken just one main camera with one fixed focal length lens and a smaller compact camera with its fixed focal length lens. Why? Because being able to travel very light with minimal equipment is "liberating" and allows me to enjoy the trip more. I don't want to be thinking of which body, which film, which lens.