The SRB 40.5-49mm Step-up Ring steps a 40.5mm lens thread up to a 49mm thread, making it suitable to attach a 49mm filter to a 40.5mm lens for example.

highlights

• Steps a 40.5mm lens thread up to a 49mm 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.