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Originally Posted by eeyore  a grindy feeling when manual focussing shouldnt have anything to do with the converter - unless it was somehow preventing the camera from realising that AF was turned off but I have never had that issue with mine so maybe you just had a duff one. |
I tried 3 different Jessops converters with my Sigma lens, each one felt like there was sand in the works somewhere when you tried to manual focus, weirdly auto focus worked fine, I'm not really a fan of it though. Just some compatability issue there.
If using a 2x with my Tamron 90mm, surely light isn't such an issue if I'm using a Ring Flash ? ( which I tend to most of the time to combat lense shadow on the subject) and I'm often using F16 or thereabouts for the Depth of Field. I'm just thinking of it as a cheaper option than buying a 150mm macro lense. It would, when combined with various extension tubes, allow me to get the shots I want without having to get quite as close. Or am i missing something obvious>?
TobyH