What's going on?
Posted 14 November 2005 - 09:01 AM
Consequently, we took measurements, set a hyper-focal and shot. Things like that really question your resolve, but you can never tell the quality of an olive until it's pressed, and we all made the day. Wow, what an Oprah moment.
I'm pretty sure this has happened once in everyone's career. Maybe not. Was there something I may have missed in making a vain attempt to calibrate? I was told by the AC that the lenses breathe and were tight, but could that be the only prognosis as to why the motor would jump off at the same point in the travel of the lens?
Thanks for any advice,
Posted 14 November 2005 - 04:04 PM
Having not been there I don't know, but I kind of doubt you were using the lens into 9 or 10 inches. Next time try just calibrating into 2 feet or so and see if your problem still occurs. Also depending on what kind of pitch and what motor system you have you may be able to pop on a wider gear (the M1 has a wider gear for the 32 pitch) that will allow you to move further. Anyhow hope that helps.
Posted 14 November 2005 - 06:09 PM
Posted 15 November 2005 - 04:09 AM
Hope this makes sense.
Posted 15 November 2005 - 06:49 AM
Thanks for the response. We ended up using the support rods for the matte box and I went off my dovetail rods for the motor. But then again, we were so loaded up with filters cuz we were shooting tungsten film at an 8 to 22 stop, that it may have simulated the encumberance of a clip on. It looks like a combination of all your statements.
You are correct in your assumption that we didn't go to the closest focus. And even if we did, I believe we had enough depth of field to go a little long to keep that sharp, going forward.
Yeah, I tried the foucus ring manually and it seemed to go through fine. That's what was confusing me. Everything felt solid with no play or flex, it's just at that 9" to 10" travel that made things go bump.
I had no idea there was a screw to keep the lense in check like that. I doubt the AC knew either. Kids!! Sometimes they surprise you. Sometimes not. Looks like I gotta read my AC handbook in more haste.
Thank y'all again fellas. I feel better now b/c on set it became really uncool, but we just did the damn thing and hoped the hyper covered all distances necessary. At least I now have a contingency for the next time.