I have a camera with a fisheye lens. I need to simulate it on blender to get the same images

camera properties: sensor size: 2/3". image resolution: 13601024 fisheye focal: 1.8mm HV (FOV): 185*185 (with 2/3").

My problems is how to fix the V field of view ? I have chose a fisheye equisolid and I set a focal length as 1.8 and the FOV =185 as H filed of view. But the horizontal field of view is determined by the W/H image resolution which different to 1 in the real case. Any help?