Re:Comparing iPhone 13 vs. iPhone 14 for Astrophotography
by wyager on Sunday May 28, 2023 @10:42PM
(#36109984)
> The f/1.5 is an actual rating.
You're not disagreeing with my actual argument, which is just "they should use the equivalent ratings for both focal length and f-stop". If you prefer physically-based specs, you should be demanding that they also say the focal length is 7mm or whatever.
> It's important for shutter speeds, and relative performance in low light
It's completely useless for determining low-light perf without knowing the crop factor.
> I can compare roughly a phone camera that's at f/1.5 vs a phone camera that's at f/2
Not without knowing the crop factor. You're falling for the marketing.
You're not disagreeing with my actual argument, which is just "they should use the equivalent ratings for both focal length and f-stop". If you prefer physically-based specs, you should be demanding that they also say the focal length is 7mm or whatever.
> It's important for shutter speeds, and relative performance in low light
It's completely useless for determining low-light perf without knowing the crop factor.
> I can compare roughly a phone camera that's at f/1.5 vs a phone camera that's at f/2
Not without knowing the crop factor. You're falling for the marketing.