是否有可能在接口构建器中选择性地覆盖布局限制?

I'm attempting to adjust the size of a UIImageView dependent on whether the device is an iPhone 5 (tall screen) or an earlier iPhone version (shorter screen). Below is my code. However when I run the app these instructions are ignored. I suspect the problem is caused by auto layout constraints. If I turn those constraints off the image is resized but that messes up the rest of my layout. Is there anyway to selectively override auto layout rather than turning it off?I'm attempting to adjust the size of a UIImageV