MN701RC2 Fluid Video Head In addition to the video camera market, the 701RC2 should be considered by both birdwatchers and photographers using long telephoto or zoom lenses. Both will benefit from the smooth pan + tilt movement and the sliding platform, in particular birdwatchers who also digiscope. Attaching a digital camera to the eyepiece of a spotting scope will seriously affect the alance/centre of gravity and therefore have a negative effect on the performance of the head. By being able to slide the weight forward, you will improve the movement as well as improve the overall stability.