minus-squareOk-Jacket8836@alien.topcakeBtoPhotography•Are focal lengths on crop sensor lenses same as full frames ?linkfedilinkEnglisharrow-up1·1 year agoWhere your equation goes wrong is here “35mm looks like 50mm on a FF because the narrower FOV” Just no. Optically 35mm = 35mm and 50mm = 50mm on both Crop and FF. It will look the same regardless of your sensor size. A crop will give you the idea of a narrower FOV because your image is cropped, aka the outer edge of your image is cut off. The focal length, and thus how “large” objects look through the viewfinder is the same on both systems. linkfedilink
Where your equation goes wrong is here “35mm looks like 50mm on a FF because the narrower FOV”
Just no.
Optically 35mm = 35mm and 50mm = 50mm on both Crop and FF. It will look the same regardless of your sensor size.
A crop will give you the idea of a narrower FOV because your image is cropped, aka the outer edge of your image is cut off.
The focal length, and thus how “large” objects look through the viewfinder is the same on both systems.