iolair
No longer a newbie, moving up!
The 50mm lens produces results with more contrast because there's less elements in the glass eating up the light. The pancake lens on your camera would sort this out for you to an extent.
Also, though, it looks to me that on the canon photos above, the subject was correctly exposed but on the shots from your setup, it's more like the background is properly exposed but the main subject isn't. You can probably fix this by changing your camera to spot metering (so it just reads the light level from, e.g., the centre of the frame).
Also, though, it looks to me that on the canon photos above, the subject was correctly exposed but on the shots from your setup, it's more like the background is properly exposed but the main subject isn't. You can probably fix this by changing your camera to spot metering (so it just reads the light level from, e.g., the centre of the frame).