Enhance your photography setup with this versatile M52-M42 adjustable focus adapter ring, designed to provide precise manual focusing and broad compatibility with M52 mount lenses and M42 mount adapters. This adjustable focus length adapter ranges from 25mm to 55mm, offering flexible and convenient use to meet various shooting requirements, whether you’re capturing close-up macro details or standard images. Key Features: · Broad Compatibility: Compatible with M52 mount lenses and M42 mount adapter rings, making it an excellent focusing system addition for a variety of cameras. · Adjustable Focus Length: Easily adjust the focus length between 25mm and 55mm, allowing for smooth manual focusing that satisfies diverse photographic needs. · Macro Extension Tube Functionality: Doubles as a macro extension tube, ideal for enhanced macro photography and digital camera close-up shots, providing excellent imaging flexibility. · Premium Aluminum Alloy Construction: Crafted from high-quality aluminum alloy with advanced anodic oxidation treatment, ensuring durability, sturdiness, and long-lasting performance. · Compact and Lightweight Design: Measures 7cm in diameter and weighs only 99g, making it highly portable and easy to store, perfect for travel and on-the-go shooting. Specifications: · Model: M52-M42 (25-55) · Color: Black · Material: Aluminum Alloy · Product Size: 7 x 7 x 2.5 cm (2.7 x 2.7 x 0.9 inches) · Product Weight: 99g (3.4oz) Package Includes: · 1 x Adjustable Focus Length Adapter Ring (M52-M42 25-55) This premium adjustable focus length adapter combines durable construction with versatile macro and standard focusing capabilities, making it an essential accessory for photographers seeking enhanced control and precision in their work. Experience improved focusing performance and portability with this expertly designed aluminum alloy focus adapter.