Absolutely. The majority of my work is PBS documentary style productions and as you know, it's a lot of run and gun. You don't have a lot of time to follow the action and make sure you're in focus etc. This makes the works much easier so you can concentrate on the action, not the lens. You can go wide and tight and the footage is sharp and crisp with great contrast. I have a Panasonic GH2 so for me, this is a 24-70 and I love it. You will not have buying remorse with this one...
Thank you for your answer. I have some C-mount lenses-which I will test against--a Tokina TV Lens at 1:1.8/12.5-75mm;(I don't think that will do the job today)and a Zeiss C-Mount 25mm. I'll put this 12-35mm on a Blackmagic Design MFT pocket documentary camera. I've got to meet broadcast standards with the visuals. Most of the work will be, MOS, one person interviews with music demonstrations, and shots of objects, art, photos drawings, etc. I lot will also be computer generated. That little package will be worked hard. So, with the added info, can this be the right lens? David