Change aspect ratio of sliders?

Most of my photos that I want to use for my site have an aspect ratio of 1.5:1 If I resize the photos to the recommended 950px460px it stretches the image and distorts it. Can you give me some code so that I could resize the slider box to 750px wide by 500px high? This would help maintain proper aspect ratio of my photos which were given to my by a client and cannot be changed.

Thanks,
Jeff

 

Do let us know your website link so that we can provide the exact solution.

 

www.lqsdf.com It is still a work in progress

 

Your all images of slider are not in equal size, some are bigger and some are smaller.
So, do resize the images of slider to "910px x 405px" . This will solve your issue.