On returning from 10 days in North Iceland, having taken only Landscape images, I decided to analyse my lens usage. I was going for maximum quality and so tried to use my two prime lenses as much as possible. How often was I able to achieve a satisfactory composition with the prime lenses and how often did I have to resort to using a zoom lens?
I analysed 456 images, each of which was a unique composition. The results were as follows:
“Wider” means anything between 18mm and 25mm and “Long” means anything greater than 60mm .
“28mm” includes any zoom images between 26mm to 32mm.
“35mm” includes any zoom images between 33mm to 44mm.
“50mm” includes any zoom images between 44mm to 60mm.
These ranges were chosen on the basis that, with a bit more effort, I could have used a prime lens, instead of the zoom, and still achieve a satisfactory composition.
Conclusions: Nearly 3/4 of all my compositions were, or could have been, achieved with the two prime lenses. Do I need another prime lens? Based on these results the answer is no. But, if I was to buy another it should be a 28mm lens.
As well as the superior quality a further benefit of using the 2 prime lenses was to slow me down and cause me think far more about each shot as I sought to find the right composition without the ease of a zoom lens. A consequence is that I took far fewer images on this trip to Iceland than I did on my last visit. However, my success rate (achieving good compositions) is much higher.