AaronChicago Posted February 19, 2014 Share Posted February 19, 2014 I just picked up the Nikon Speedbooster for the Sigma 18-35. How do you accurately judge what F-Stop that you're at? It's numbered as 7 stops, which I'm guessing is up to f22. There's just no easy way to quickly jump to f4, or f2.8 if you need it without doing math. Link to comment Share on other sites More sharing options...
chrisso Posted February 19, 2014 Share Posted February 19, 2014 I think you are supposed to judge it by eye, either using the camera's LCD or exposure tools. Nothing is perfect, and the Speedbooster delivers quite a lot of positives for the price. Link to comment Share on other sites More sharing options...
AaronChicago Posted February 19, 2014 Author Share Posted February 19, 2014 I love it. I can't believe how smooth that combo looks, even wide open. Julian 1 Link to comment Share on other sites More sharing options...
Inazuma Posted February 20, 2014 Share Posted February 20, 2014 What camera are you using it on may I ask? :) And is it difficult to balance that near 1kg worth of lens and adapter? AaronChicago 1 Link to comment Share on other sites More sharing options...
AaronChicago Posted February 20, 2014 Author Share Posted February 20, 2014 What camera are you using it on may I ask? :) And is it difficult to balance that near 1kg worth of lens and adapter? GH3 and BMPCC. It's tough to keep steady handheld. I think it works best with tripod or shoulder rig. Inazuma 1 Link to comment Share on other sites More sharing options...
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