Reviewed by 1 customer
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Comments about Sensei 77-105mm Step-Up Ring:
I use step-up rings to accommodate larger filters wide enough in diameter to use with all my lenses. I own several brass step-up rings along with other top-of-the-line step-up rings costing much, much more (ridiculous really). I'm pleased to say that all of the Sensei step-up rings I own screw on securely and smoothly. Machining tolerance seems to be just fine. Although the Sensei rings I own are well made, they are also a tad lighter (being made of aluminium) and perhaps not as robust as brass rings. Nonetheless, treat them gently and Sensei rings will serve you well for many years. Tip: when fitting rings to a lens or another filter, do not 'squash' the outer sides - this creates resistance in the screwing action and can deform the ring permanently. Instead, pinch the ring to turn it or press on the ring from the front edge using only skin 'grip' pressure to rotate it. If you cannot remove the ring with skin pressure alone, you've probably tightened the ring way too much in the first place. Another tip: very carefully dab drops of silicon solution (not oil) on ring threads and allow to dry. This eases the screwing action and helps remove overly tightened rings. Overall, I give this product 4 stars because it will never be as robust and forgiving as a premium brass ring ... but for price vs performance, I'd rate Sensei step-up rings a whopping 6 stars. Excellent value. Highly recommended.