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DSLR Follow Focus USB!


User_Removed 10 3.3k 4 United Kingdom
2 Mar 2013 3:30PM
Anyone who has done DSLR video knows how difficult it can be to focus manually. There are follow focus systems available but this is the first I've seen which actually uses the autofocus motor to give you manual focus via USB, it's a pretty revolutionary bit of kit for DSLR video shooters.

02-03-2013-15-27-26.jpg

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User_Removed 10 3.3k 4 United Kingdom
2 Mar 2013 3:34PM



GazzaG2003 11 252 England
2 Mar 2013 4:09PM
Thanks for this Chris I shall be ordering one of these next month Smile
MikeA 10 1.2k England
2 Mar 2013 6:50PM
http://www.okii.net/product_p/fc1.htm

Here is another, been around for quite a while.
User_Removed 10 3.3k 4 United Kingdom
3 Mar 2013 12:02AM
That one you link to Mike is $350, pretty expensive and doesn't look as good, but still great use of the tech. This week is first time I've heard of these! I wonder what uses they might have for stills photographers.
Hugo 9 647 United Kingdom
3 Mar 2013 4:05AM
This is more interesting for stills - watch the video at the bottom:
http://dslrcontroller.com/about.php
MikeA 10 1.2k England
3 Mar 2013 9:55AM

Quote:That one you link to Mike is $350, pretty expensive and doesn't look as good, but still great use of the tech. This week is first time I've heard of these! I wonder what uses they might have for stills photographers.


I use software via laptop (Dragonframe) to control my Focus only and stepper motors to control Focus and Zoom for Time-lapse stills.
User_Removed 10 3.3k 4 United Kingdom
3 Mar 2013 2:13PM
Hugo, I actually think I was the first person to post that video on ePz (when the software came out a year or two ago). It was also one of the reasons I bought an Android phone. Must have a look at Dragonframe Mike. If I get more serious with DSLR video I could see myself buying one of the V-controls above and integrating it with the rig.
MikeA 10 1.2k England
3 Mar 2013 3:39PM
Hi, Chris, it can get addictive like EPZ - building a 7 axes rig and controls currently.

Focus pull Time-lapse: http://vimeo.com/25425854 using a 1rpm DC motor.

Five axes Time-lapse test: http://vimeo.com/51699187 using Dragonframe

Dragonframe stepper motor integration: http://www.dragonframe.com/moco-3d.php#arduino
Paul Morgan e2
13 16.1k 6 England
3 Mar 2013 3:48PM
I dug all my sons old scaleletric track out of the loft, then bought some good old fashioned Meccano to build a motorised truck than runs along the track, works like a dream Smile
User_Removed 10 3.3k 4 United Kingdom
3 Mar 2013 4:26PM
What sort of smoothness are you getting from the Scalextric Paul, also any video links? Those vids are impressive Mike, any pics of the setup?
MikeA 10 1.2k England
3 Mar 2013 5:36PM
Hi, Chris
This is the equivalent of EPZ for Time-laspe but non commercial.
http://forum.timescapes.org/phpBB3/index.php

Three iterations of Focus / Zoom in this post.
http://forum.timescapes.org/phpBB3/viewtopic.php?f=30&t=8925&p=54990#p54990 for the stepper motor set up

Images are Focus01 and Focus02, just below the third video frame for the DC motor set up
http://forum.timescapes.org/phpBB3/viewtopic.php?f=30&t=4649

Showing a 3 axes set up, did not a take any stills of the five axes set up.
http://vimeo.com/44823576
User_Removed 10 3.3k 4 United Kingdom
4 Mar 2013 1:00AM
That's a fab looking slider, expensive?
Paul Morgan e2
13 16.1k 6 England
4 Mar 2013 1:43AM

Quote:What sort of smoothness are you getting from the Scalextric Paul, also any video links? Those vids are impressive Mike, any pics of the setup?


Yeh very smooth and the power comes from the track so no trailing wires, speeds adjustable as well using an old scaleletric trigger.

No video links as yet.
MikeA 10 1.2k England
4 Mar 2013 11:07AM

Quote:That's a fab looking slider, expensive?


Slider: http://www.dynamicperception.com/ Stage Zero with DC motor or Stepper motor option now. I modified mine to take the stepper as there was no option when I purchased mine a couple of years ago.

Emotimo: http://emotimo.com/ TB3 Pan/Tilt

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