39mm to 49mm Step-Up Adapter Ring for Filters

This metal step-up ring converts a 39mm lens thread to 49mm so you can fit larger 49mm filters and accessories without replacing lenses. It fits in front of any lens with a 39mm thread and is useful when you need to use UV, CPL or ND filters, lens hoods and other 49mm attachments for landscape or portrait work.

Key Points

Made from CNC-machined aluminium alloy, this adapter aims for high strength and corrosion resistance while keeping weight low. The ring screws onto the lens front and expands the accessory thread to 49mm, allowing quick attachment of compatible filters and converters. According to the manufacturer, the finish is bright and stable for regular photographic use. Consider that you must confirm the lens thread marked with the diameter symbol on the lens cap or barrel before ordering, otherwise the fit will not be correct.

Technical Specifications

• Name: AMOTOK 39mm to 49mm Lens Adapter
• Material: Aluminium alloy
• Thread conversion: 39mm to 49mm
• Compatible accessories: 49mm filters (UV, CPL, ND), hoods, converters
• Manufacturing: CNC machining

Usage Recommendations

Screw the adapter onto the front of a lens showing the 39mm diameter marking. After it is in place you can mount 49mm filters and accessories as normal. For stacked filters, check for vignetting at wide angles since added extension can influence the field of view. The ring is purely mechanical so it does not affect focus or exposure settings.

Positive Aspects

The lightweight metal construction provides durability while keeping handling comfortable on smaller lenses. It is a straightforward way to expand your accessory options without buying new filters. Also, the simple screw-on design makes it an easy tool to carry in a camera bag for shoots that require quick filter changes.

Note: the adapter is a step-up type, not a reducer, so double-check that your lens thread is 39mm and that the accessory you want to use is 49mm.