Nowadays, follow focus has been more and more important device to control the depth of field. Here, we provide you with this 15mm DSLR FF A / B Hard Stops Follow Focus for Rail Rod Black to meet your need! With meticulous craftmanship and professional design, this follow focus will effectively control the focus of lens, which is more accurate and stable. With this wonderful follow focus, the video could make bokeh and theme.<!--Features --><p>FEATURES</p><UL><LI>With A / B hard stops to control focal length</LI><LI>Quick installation</LI><LI>Provides quick and accurate focus, perfect for any photographer</LI><LI>Universal design, suitable for most DSLRs</LI><LI>You would have easy begin / end setups for fast repeatable racking between two points</LI><LI>Those focusing lenses that have no hard stops (say Canon EF lenses) are now easily achievable</LI><LI>You could also pull focus anywhere as you like and easily track the previous lens position setting</LI><LI>Completely gear-driven design for slip-free, accurate, and repeatable focusing</LI><LI>Gear drive could be mounted from both sides; Suitable for industry standard 15mm rods</LI></UL><!--Specifications --><p>Specifications</p><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=131>Material</TD><TD width=365>PC &amp; Metal</TD></TR><TR><TD width=131>Weight</TD><TD width=365>2.22 oz / 63 g</TD></TR><TR><TD width=131>Color</TD><TD width=365>Black</TD></TR><TR><TD width=131>Dimensions</TD><TD width=365>(7.09 x 4.33 x 4.33) " / (18 x 11 x 11) cm (L x W x H)</TD></TR><TR><TD width=131>Compatible with</TD><TD width=365>Camera </TD></TR></TBODY></TABLE><!--Package Includes --><p>Package Includes</p><ul><li>1 x DSLR A/ B Follow Focus </li><li>1 x Focus Ring</li></ul><!--Extra Info --><!--produts_compatibility -->