The SRB 55-77mm Step-up Ring steps a 55mm lens thread up to a 77mm thread, making it suitable to attach a 77mm filter to a 55mm lens for example.

highlights

• Steps a 55mm lens thread up to a 77mm thread
• Features a 3mm deep male thread and 3mm deep female thread
• Made from high grade aluminium and anodised black

Step rings are handy if you have many lenses with different sized threads. Instead of purchasing multiple filters and accessories to fit these lenses, a Step Ring could be an inexpensive choice.

This step ring has a 3mm male thread and a 3mm female thread, making the overall width to be 6mm. For more information, check out our Guide to Using Step Rings.