Easy Adjustment: This viewfinder features an intuitive sliding mechanism for quick and easy adjustments to help you readily adapt to a variety of shooting conditions. You can adjust the view ratio to your personal preference making it an ideal tool for framing in different formats Rugged and Durable: Crafted from high-quality plastic materials our View Finder with Sliding Mechanism is built to withstand the rigors of outdoor photography ensuring longevity and reliability. The viewfinder measures 89x89x5mm making it small lightweight and easy to carry Enhances Skills: By holding the viewfinder up to the eye the artist can narrow down a vast landscape or complex scene to a square field of view. It's like putting a ‘window’ in the eye which helps the artist focus on a specific part of the scene and filter out unwanted elements around it Optimise Composition: The viewfinder is a powerful tool for composition. Using the viewfinder allows the artist to quickly determine the position of the scene within the frame the proportionality of the scene and helps you to visualise the scene more efficiently thus making it easier to achieve better composition and artistic photography Wide Application: The viewfinder can also be used as a colour isolator for professionals amateurs and students for outdoor sketching painting drawing photography interior design landscaping craft projects and anywhere else composition is required. It is not limited by location and can be useful at different altitudes and lighting conditions