anton.zimin@gmail.com

Hello! I'd like to share with you my setup.
 
It is very simple to do, nevertheless I've spent about a $1000 to try different ways and ideas. I end up with a setup which costs about $200-300. It is a fully electronic dual follow focus system, controlled by Arduino Nano with two servos and powered by 2 3.7 Li-ion 4800 mAh batteries. The price very much depends on motors and potentiometers  you choose. You can calibrate it with any lens. 
 
Still it is a bit noisy and I'd like to make a wireless version as well plus add a monitor and a possibility to store more than one lens in its memory. 
 
VIDEO

Hello! I'd like to share with you my setup.
 
It is very simple to do, nevertheless I've spent about a $1000 to try different ways and ideas. I end up with a setup which costs about $200-300. It is a fully electronic dual follow focus system, controlled by Arduino Nano with two servos and powered by 2 3.7 Li-ion 4800 mAh batteries. The price very much depends on motors and potentiometers  you choose. You can calibrate it with any lens. 
 
Still it is a bit noisy and I'd like to make a wireless version as well plus add a monitor and a possibility to store more than one lens in its memory. 
 
VIDEO

Hello! I'd like to share with you my setup.
 
It is very simple to do, nevertheless I've spent about a $1000 to try different ways and ideas. I end up with a setup which costs about $200-300. It is a fully electronic dual follow focus system, controlled by Arduino Nano with two servos and powered by 2 3.7 Li-ion 4800 mAh batteries. The price very much depends on motors and potentiometers  you choose. You can calibrate it with any lens. 
 
Still it is a bit noisy and I'd like to make a wireless version as well plus add a monitor and a possibility to store more than one lens in its memory. 
 
VIDEO

Hello! I'd like to share with you my setup.
 
It is very simple to do, nevertheless I've spent about a $1000 to try different ways and ideas. I end up with a setup which costs about $200-300. It is a fully electronic dual follow focus system, controlled by Arduino Nano with two servos and powered by 2 3.7 Li-ion 4800 mAh batteries. The price very much depends on motors and potentiometers  you choose. You can calibrate it with any lens. 
 
Still it is a bit noisy and I'd like to make a wireless version as well plus add a monitor and a possibility to store more than one lens in its memory. 
 
VIDEO

Introducing my DIY synchronized double follow focus system for ISCO 2x ULTRA STAR and Biometar 2.8 80mm. Actually it can work with any taken lenses. You just need to print another gear for the lens and calibrate it with three buttons. Also you can use even another adapter. Then you need to reprint all the holders and gears. It is quite noisy. I guess I have to find another silent motors. But look how it works. 
https://youtu.be/XT2UbgYFvlI

Introducing my DIY synchronized double follow focus system for ISCO 2x ULTRA STAR and Biometar 2.8 80mm. Actually it can work with any taken lenses. You just need to print another gear for the lens and calibrate it with three buttons. Also you can use even another adapter. Then you need to reprint all the holders and gears. It is quite noisy. I guess I have to find another silent motors. But look how it works. 
https://youtu.be/XT2UbgYFvlI

Introducing my DIY synchronized double follow focus system for ISCO 2x ULTRA STAR and Biometar 2.8 80mm. Actually it can work with any taken lenses. You just need to print another gear for the lens and calibrate it with three buttons. Also you can use even another adapter. Then you need to reprint all the holders and gears. It is quite noisy. I guess I have to find another silent motors. But look how it works. 
https://youtu.be/XT2UbgYFvlI

Here you can find a lot: http://lens-club.ru/lenses/c_1427282.html
It is all in Russian, but google translate can be helpful. It is a huge data-base of all lenses you could imagine. 

Biometar is a very good lens. I use an MC version with ISCO. It has a nice bokeh and very sharp for its price. But it’s not easy to find one in a good condition. And I don’t recommend the zebra version. Also I had to change the grease on my lens.