Zoomed image issue problem at final render

[mervin_lim23]

I don’t know if some of you encountered this problem already. I have an interior scene here that keeps bugging me. The question is this. Every time I’m trying to set the output to 1000 x 750 and render, the view seems zooming out. But if I set it to a lower output size, which in this case is 640 x 480. The image output is correct. I’ve attached the sample rendered to both outputs and I’ve also included the render setup in case you want to look at it to find what’s causing the problem. Just ignore the image quality output if it is blurred or what. Just focus on the zooming problem. Pls help me.

[mervin_lim23]

here the output rendered at 1000x750. notice that the image seems zooming out unlike the output rendered at 640x480. what seems to be the problem here?

[mervin_lim23]

this is the render setup. i dont know if the source of the problem came from my setup

[mervin_lim23]

here is the other setup