Lens moves during focus pull. Any suggestions?

[Jawa Ex Machina]

What you are describing is just one of the problems that is faced when you use a still lens in a cine situation. This is why cinema lenses cost so much more than still lenses.

A cinema lens will
- hold focus while you zoom
- maintain exposure while you zoom
- have minimal breathing characteristics for rack focus shots
- have little play or wiggle as you describe
- have a better focus throw
- have hard stops on the focus ring and proper markings

everything we are doing with DSLR's and still lenses is a hack so you just got to figure a way,
hunt down the best still lenses (usually primes), and ditch the equipment that isn't working for you

If enough really good low budget movies that are made today with DSLRs become cult phenomenon, I bet you all these things you describe will be exactly what people will try to emulate 20 years from now.

"How can I get that Canon 7D look? What filter should I use to emulate the play of a low budget DSLR lens? How can I fake a realistic rolling shutter?"

 

[Taylor Rudd]

say what you want, I have NO problems with ANY of my Ls.

i say buy L lenses becuase they are superior in pretty much every aspect than a non L. Thats why i dumped all my mediocre lenses and switched to Ls a few years ago. big investment, yes. but build quality is much better.

The image is superb, if you're wanting to resolve more detail. I like my set of Nikon primes because they have a longer focus throw and a muddier image, similar to the effects that a pro-mist would have on nice glass. I like my L lenses because they make nice crisp pictures and my 70-200 f/2.8 has IS