Hoya HMC super UV (o) possible problem?
Hello if anyone can help with this it would be much appreciated!
I have just bought a new Hoya HMC Super 62mm UV (O) filter. I have noticed a rattle from the filter as though the glass is slightly loose from the frame. The filter also appears not to have a retaining ring / c-ring to secure the glass, as my normal or HMC only Hoya filters do. Is this normal in the Hoya HMC Super, in particular, or a new feature in their newest filters? (I understand one other manufacturer, at least, opt to use a 'loose glass plate' as this is thought to cause less stress on the element and frame in various temperate conditions) ...or is my filter simply faulty?!?
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