The storm that caused this sprite was only about 90 miles away and this is why the sprite is cut-off. The lightning which triggered this sprite is clearly visible on the horizon. As a matter of fact this sprite was slightly delayed from the main lightning flash. The previous frame was overexposed due to the main stroke flash. Telescope: - Camera: Watec 902H with 12mm 1:1.2 lens. Filtration used: None