On 25/9/15, Mark Roberts, discombobulated, unleashed: >The days of mechanical aperture control are also numbered - electronic >control certainly has to be in the plans somewhere - but there will >need to be some kind of interim with compatibility. Tales of the >demise of screw drive in the new full frame are just irrational >hysteria.
Interesting that with the advent of DSLRs becoming more prevalent in the video field, high end lens makers are offering 'cine' glass with fully mechanical focus and aperture control. Google 'cine lens' and select 'images' for the results pages... Indeed, trying to find a good DSLR lens with (on-lens) aperture control is hard. I use a Canon C100 and my son's EF 17-40 frequently. The aperture control is electronic and operated via a thumbwheel on the camera. Even on its finest setting, the transition between f-stops is not stepless - and so of little use to me in situations where the light changes during a shot. In fact the only lens of this range that has an aperture ring is the Nikkor 17-35/2.8. In due course I'll be purchase one used, and then have it professionally altered to a Canon mount and a stepless, fluid-damped aperture ring. This will cost me about 450 quid for the lens and another 200 or do for the work. The result should be good, and a fraction of the price of, say, this: <http://www.bhphotovideo.com/c/buy/tokina/Ntt/TOTC168*/N/0> -- Cheers, Cotty ___/\__ Broadcast, Corporate, || (O) | Web Video Production ---------- <www.seeingeye.tv> _____________________________ -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
