Hi guys, I have a situation where I'm not sure if this is my fault due to a lack of knowledge or this is a defective product.
I have a lens with 105mm front element. I have two filters from heliopan which are perfect fit for the lens front element.
Yesterday I've received an adapter 105mm to 122mm which was purchased on ebay. The thread won't mount on my lens or any of two filters. Do you know if there's only one (standard) thread? Or multiple thread options?