Timeline for Is it possible to use a follow focus to add AF to MF lenses?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Oct 1, 2019 at 7:03 | comment | added | Tetsujin | I understand what you're trying to do, & appreciate the idea might work in theory if you can figure out the comms between the two - I just think a stills camera's AF is going to want to be too fast for the mechanical structure. My guess is it would hunt like crazy because it will keep trying to correct for an image that hasn't managed to finish its last command to move. Also… "Real DoPs don't use AF" ;) | |
| Sep 30, 2019 at 14:46 | comment | added | R3D34THR4Y | I would do that if I were more than a 1 man crew, I'm using this camera for hobby photography and also for doing interviews and on the ground reporting so if I could utilize the a6400's marvelous AF capabilities with the optical quality of old and cheap vintage lenses that'd make my work much easier. Of course if I were to do a well produced movie I'd get other people to manage the focus etc... Also I cannot upvote the answer because I lack 5 rep rn | |
| Sep 30, 2019 at 12:46 | comment | added | Tetsujin | If it's actually for video, why not employ a 1st AC. That's what they're paid for, focus-pulling ..& gear lugging, if you've only a 2-man camera crew, otherwise the 2nd or 3rd AC gets to do the lifting & carrying. Camera-op/DoP doesn't do such a menial task as actually making sure the picture is sharp all by themselves, they have people to do that ;) | |
| Sep 30, 2019 at 11:19 | comment | added | R3D34THR4Y | Yes it is a budget solution for video, though I am planning to use the AF on vintage lenses mostly for filming, and even then this product is just an example, I could jerryrig a high torque brushless motor. I could also manually calibrate each lens and create different profiles for different lenses. I'll try reverse engineering the E-Mount using arduinos and tricking the camera into thinking it's focusing a genuine lens | |
| Sep 29, 2019 at 17:45 | comment | added | Tetsujin | Comment rather than part of the answer, as it's really off-topic. focus motor 4 grand for the 'mini', & remote controller 7 grand. | |
| Sep 29, 2019 at 17:39 | history | edited | Tetsujin | CC BY-SA 4.0 |
added 293 characters in body
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| Sep 29, 2019 at 17:33 | history | answered | Tetsujin | CC BY-SA 4.0 |