Product Description Adorama Step-Up Adapter Ring 37mm to 52mm allows you to use larger size filters on lenses with a smaller diameter thread. The first number is the size that screws into the lens, the second number is the filter size.
Customer Reviews:
does the jobNovember 5, 2006 Randal Smith(SF Bay Area, CA) 1 out of 1 found this review helpful
I started with a non-removable 28mm Nikon Coolpix lens. Then I add the 28-37mm adapter. Then I add the 37-52mm adapter. Then I'm ready to use the filters I bought for my 52mm lens on my Canon 20D, namely the IR filter, which is 58mm. So then I add the 52-58mm adapter. I end up with 3 ring adapters and one filter, but its better than duct tape and I only have to buy one $70 filter for all my cameras.