Posted 16 January 2005 - 05:03 AM
Posted 16 January 2005 - 06:30 AM
With video lenses this is maybe an option but with lenses for 16/35mm or cine HD it is not. Every lens has it's own markings. Zeiss use 7 different scales for every focal length on there standard lenses, Cooke makes a unique one for every single lens.
Hope this helps.
Posted 16 January 2005 - 06:55 AM
sorry for the confusion
Posted 16 January 2005 - 12:54 PM
Sorry, for misreading your question.
Posted 17 January 2005 - 11:40 PM
We have used the BFD for a number of years now and have had excellent luck with repeatable calibrations. We mark the strips for the lens we are allocating to it - on that strip make a note of what you are setting the lens to as its middle. Say for example 3'6". That way you always know exactly where to set that lens when you begin your calibration. Once youve "zeroed" your motor and taken the calibration wheels to their begging setting, you should always have the same scale to marks alignment. In the end, if you really want to be able to mark your strips for repeatable use, be as consistent in every step of your set up as possible. Happy BFDing
Posted 17 January 2005 - 11:48 PM
I meant to say in the last post that Yes, we do take the calibration to the ends of the lens barrel travel not just to the infinity or closest focus marks. Now, I do think that there may have been an improvement the Jim made in some capacitor or other electronic widgmet that fixed the problem of backlash, which of course would have prevented reliability on marking your strips.
If you have an older one that for some reason hasn't had the upgrade, I think Jim would set you up, if not you should be cruisin with consistency.
Posted 18 January 2005 - 06:00 AM
Posted 29 January 2005 - 03:14 PM