The 28-45mm doesn't fit into any established mold right now. It's a stop and a third (did I do the math right?) faster than any of the f/2.8 zooms. Wide open I'm pretty sure it will outperform (or at least match) any of the f/1.8 primes. It's two thirds of a stop slower than the f/1.4 primes, but is very much in the ballpark of performance at shared apertures. So if you think of it has a prime, it has more range than other primes. I don't think it makes as much sense to compare it to f/2.8 zooms.
It's a fairly large and heavy lens, less than 100g heavier (950g vs 886g) than the original 24-70 f/2.8 GM, but longer.
If size, weight, and portability are important factors....then it probably isn't a good fit. If having flexibility of f/1.8 at multiple FLs is an important factor, then there's almost nothing like it. (At least for Sony right now.)
Jul 12, 2024 at 07:23 AM
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