Hi there, thank you for reaching DJI forum. Kindly check this thread: (https://forum.dji.com/thread-145984-1-1.html). I hope this will help. If you have another concern, please let us know.
I think you are looking for camera specifications between the different DJI drones and not the ND filters for the Spark. Here you can select the different drones to compare, including camera specs: https://www.dji.com/products/compare-consumer-drones