TTArtisan Dot Sight for Cameras, Telephoto Accessory, for Bird and Astronomical Photography, by Meisho Optics

This is a foldable sight that attaches to an accessory shoe. Even when shooting birds, small animals, or sports scenes with a narrow field of view, it helps you quickly capture your subject and enjoy comfortable shooting. Compact and easy-to-use foldable design / Lightweight design of approximately 73g makes it convenient for long-term shooting and portability / Attaches to many cameras that support an accessory shoe Aiming mark brightness can be adjusted in 5 levels / Aiming mark color can be changed to suit the shooting scene or your preferences / Aiming mark position can be easily adjusted with the dial / Energy-saving design allows for long-term use and includes an automatic sleep function (sleep after approximately 6 hours) Warranty period: See the seller's page