These binoculars deliver clarity despite foul weather conditions including fog, rain, ice and salt water. Marine binoculars come with an O-Ring seal and are nitrogen purged for reliable fogproof and waterproof performance. Check them out for great products that fulfill these special needs. Outdoor concerts advise in favor of an Extra Wide Angle. This will ensure that you will not miss what is happening on the other side of the stage.
Size also makes a difference.
It is nice to bring a more compact style of binocular to a concert as to a sport event also. Binoculars for Theatre and Indoors N.e.c. However, a very high power binocular is usually not necessary. Indoor viewing like night view brings in low light factors to consider in buying any binocular product. Indoor light can vary considerably, depending if naked light is streaming from exposed bulbs, or if softened by buff type wall collors or by shades or other furnishings.