What you really need is a superzoom!
This is a 40-400mm f4 Taylor-Hobson TV camera lens. I think 70s. Weighs about 10kg! I don’t know how it came to be fitted with a Nikon F mount - it’s on loan from a friend of mine to try it out. Haven’t yet!
8mm, because “I’m sorry, Dave; I’m afraid I can’t do that.”
Let me see…
find . -name 'IMG_????.JPG' -exec exiftool -FocalLength -p '$FocalLength' {} + | sort -n | uniq -c | sort -n
While I’m at it, my use of the various focal lengths:
Neatly done.
Last month, 423 pics, 66% of them at 85mm (Sony APS-).
Of course, I know that my FE 85/1.8 was my favourite lens, and the one I’d take to a concert (Indian classical) if I could take only one.
That was an interesting exercise for me. I discovered that 45% of my shots are at the minimum or maximum focal length of the lens in use. That’s definitely not ideal for IQ, and indicates that I should switch lenses more often rather than trying to get by with what’s mounted.
As for the video, that was 8+ minutes of my life I will never get back…
Using zoom lens exif stats to understand ones focal length preferences is tail wagging dog thinking. Us humans are the tools of the lens not the other way around. Vast majority of people end up using the ends of the zoom range because that’s where the turning stops.
I’m ‘young’ enough to start out photography with zooms even on compacts. Now only use primes because I noticed that they make my photos better (not primarily in technical terms)
Picking a prime lens fl is a creative choice, you’re picking a way of seeing.
Only one lens? My pick would be 28mm of course.
Interesting. Had thought of limitations forcing creativity but not this. Seems odd/irrational we wouldn’t frame at appropriate focal length given freedom to do so but on other hand can see tools end up affecting the job. Will have to check exifs
I have a vague theory is that there is a misconception floating around. The idea of an appropriate focal lenght.
The misconception is that this appropriate focal length comes from the subject not the project of the photographer. That there is a photograph to be taken and that the photographer will find this correct view and adjust their zoom until it matches. This seems to be a common idea among zoom users. Their own statistics tend to show its not the case. Instead they are ruled by their gear.
Despite zoom lenses in practice being two primes in a barrel they differ from primes in how they make you see and how you find your frames. The prime user explicitly makes the choice a zoom user makes ( judging from comments I’ve heard over the years) unknowingly
yep, a 42mm lens would be the answer to everything…
I think it is very useful to think in terms of the working distance, which affects the perspective. Particularly crucial when photographing people.
A zoom gives one the liberty of first choosing suitable working distance, then adjusting the field of view by zooming, to select how much of the surroundings are included in the photo.
A prime doesn’t let you do these independently. One has to make certain compromises about the cropping and working distance. That’s not necessarily a bad thing and can lead to some creative decisions and a distinct style, but can also necessitate some cropping in post.
From what I’ve seen, the most common misconception about focal lengths is that the focal length itself somehow causes perspective distortions. As long as we’re talking about reasonably rectilinear lenses (with distortions corrected), it does not. It is the working distance that matters.
The question is. Does your exif stats, how you actually use your lens, support this idea?
I also have a niggle the working distance idea isn’t solid. Why maintain perspective going from headshot to full body? Is consistent working distance/perspective important when the image is so different. I understand that the face will “look the same” but does it matter when its so small in the latter frame?
If the zoom pull is smaller then conversely the change in perspective from “zooming with your feet” is so small that it will be imperceptible.
Then again I feel that using the same, or a small (3?), selection of focal lengths does bring a coherence to a set of photos that is valuable when putting them together. So maybe the opposite working distance model also brings something of value.
Ooo! That lens looks scrumptious!
Searching eBay in 3… 2… 1…
Careful, they are a family and not budget options.
My favorite one, too. The only disadvantage that it gets stuck to the body 
I didn’t graph mine, but apparently I gravitate toward the extremes (or at least, I used to – no more). This covers images from 2007 to the current day.
I looked at raw files, since I don’t always keep JPGs and I certainly don’t process every raw I shoot. Orange background are the focal length extremes (17-70 and 70-300 lenses) and the yellow background indicates an interesting range. Not only is 28mm the “dotted” (i.e., supposedly sweet spot) on my 17-70, but that’s also the range I typically use for panoramas. The 70mm shots are split between the lenses, but probably favor the 17-70 more than the 70-300. I didn’t feel like extracting and analyzing the lens type… 
(I don’t know about the 0.0 mm shots… just a glitch in the matrix, I suppose.)
For me, this is true only in so far as I don’t have primes. My longest prime is 135: I use my 70-180 for longer focal lengths. My shortest is 35: I use my 17-70 for shorter focal lengths. With a zoom mounted, I have a non-foot composition tool. And I do use that: not just the extremes. Honest!
I like my small collection of primes best. But hey, in a universe which allowed impossibly small and affordable 1.8 zooms — maybe I might change my mind. Physics and my wallet say that that is not going to happen.
My favourite prime is my 40mm lens on my APS-C Canon (with my 24mm as a backup). I’m in the process of moving to fuji atm so I suspect I’ll be using 35mm from now on.
So basically ~50mm FF equivalent.
in this universe, yes.
I can confirm your stats. I call it the “zoom bias”.
Whatever zoom you have, the two extremes will be the single (double) most used focal lengths.
Does not matter if it is a 43-86, 35-70, 10-20, a 24-120 or a 12-600.
The bigger the range, the more the values will be spread out of course, but the peaks are rarely different.
