Iris disc AHG 9789 Ergo

This high qualtiy iris disc from AHG has an adjustable optical device from -3.5 till +3.5 and 5 glass filters in the colours: light grey, grey, yellow, peach and blue. This iris disc is specially designed for older shooters or those who have large fingers or lost a little dexterity over the years. Instead of the usual rotating rings to select the aperture size and engage the filters there are studs to select the colours and the aperture ring has flat sides for easy rotation and large numbers for easy viewing.