[1.5 oz / 42 g] I'm a veteran Hollywood union focus puller and a long time wireless focus user. I've been looking for an affordable, three channel alternative for some time. After using one on a short film in 2015, I decided to purchase this system from Chrosziel. I'm very happy with it so far. Chrosziel is a small company and they are dedicated to customer service. After offering a few suggestions, I saw them implemented almost immediately. The device works as a focus puller would expect. The system is compatible with a wide variety of motors and uses Lemo connectors. It is compatible with Preston motors if you already own those. I have two handsets and send control of the iris to the 2nd handset for the DP. Firmware updates are downloaded from the website and easy to install via a USB stick.

[1.5 oz / 42 g] I use the magnum for about a year now and it is a great and easy to use tool for adjust focus iris and zoom. Great value for money and a very good support via phone. My ac's really like the cinetape readout on the handunit display. There is no need for a external cinetape display. Another nice feature is the function for controlling canon eng zoom lenses via the digital port with the built in motor. I also can control a LED headlight via a dmx port or the fader on the handunit.

[Hirose 12-pin] Used on Canon CN-E primes, great built, precision machined

[1.5 oz / 42 g] It's an amazing follow focus. Haven't encountered a smoother action. It is expensive but worth it in the long run, having dealt with cheap to mid priced FF. This will last a lifetime.

[Hirose 12-pin] Nice.

[1.5 oz / 42 g] The construction is superb! The knurled grip is made of metal and works in all weather conditions and temperatures. Just amazing how Chrosziel continues to do fine work.

[Hirose 12-pin] Perfect priduct

[Hirose 12-pin] The MagNum 300 3-Channel Wireless Lens Control System by Chrosziel is intuitive and made for demanding professionals. We have 5 complete systems in our rental inventory, and customers have always been very happy with the performance. Easy to use, clean and streamlined IN-HAND feel, responsive to even the slightest input, and great feedback (feeling) from the actual focus knob. As the owner of over 25 other remote lens systems, the MagNum has been everything we expected!!

[Hirose 10-pin] Works as advertised with my new Canon lens(CJ series)and a legacy Canon servo grip. My only complaint was the very long wait time for the cable. Over 2 months. Hopefully the delivery time will improve for future orders.

[1.5 oz / 42 g] I purchased the 203 version of this follow focus (one generation back) secondhand and immediately I noticed the modern design and solid quality. The thing that sets a professional follow focus apart from the lesser expensive versions is the machining tolerances. Chrosziel manufactures this unit with very low tolerances meaning there are no gaps or wiggle room where there shouldn't be. The gearing mechanism is smooth and performs as expected. The marking discs click into place with a satisfying snap. The knob handle is large enough to firmly grab onto but not overbearingly large. It has a slim profile and fits well into cases etc. Don't skimp on getting a cheap follow focus, it's an integral part of what makes a movie, focus!