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From what I could collect, it will be the equivalent of a 15-75mm or so on a full frame.
15×1.6=24mm
66×1.6=105mm (so to be technical it should be 15-66mm, not 15-75)
But not on full-frame; that’s where you’re confused. 🙂 It needs to be 15-66mm on a crop sensor to be the equivalent of 24-105mm on a full-frame sensor.
The cameras are set up right beside each other, and you have your 24-105mm lens(at 24mm) on your camera.
To get the same exact frame, what lens focal length lens would I need?
It would be about 15mm, right?
Yes, that’s correct. See the calculations above.
@jamesstaddon is right, but you have to take his calculations and work backwards to find the answer to the original question.
Since you’re used to seeing 27.2mm when using a 17mm lens on a cropped sensor, you will see pretty much the same thing now (24mm) when using a 24mm lens on a full frame sensor.
I could re-phrase it this way (saying it backwards): “If you’re used to seeing 24mm with your FF camera, you’ll see pretty much the same now (24mm) when using a 15mm lens on a crop sensor.”
Does that make sense?
So if you’re standing beside @creative-click-photography with her new FF camera and 24-105mm lens, you would need the Canon 15-85mm lens on your crop-sensor camera to get equivalent results.
the EF-S 15-85mm f/3.5-5.6 IS USM from Canon is a 24-136mm-equivalent lens designed for APS-C-format DSLRs.
To put it another way, Caitlin is going from a 27-80mm lens (Tamron 17-50mm lens on a crop sensor) to a 24-105mm lens on a full frame. That’s a nice little upgrade! 3mm doesn’t sound like a whole lot, but it probably makes a bigger difference than you’d expect! Congratulations, @creative-click-photography!
- This reply was modified 3 years, 1 month ago by James Staddon.