 "Metabones Canon EF to Micro Four Thirds T Speed Booster ULTRA 0.71x (Black Matt)"
 Leica R 15/3.5) have rear protrusions (spikes and durability. The lens side of the adapter features a strong leaf-spring structure as result achieves an astonishing level performance that sets new standard for focal reducers. <br /> Like revolutionary original Metabones Speed Booster&reg; announced in January 2013 sans-serif; font-size: 14px; font-style: normal; font-variant: font-weight: letter-spacing: line-height: 19.6px; text-align: justify; text-indent: 0px; text-transform: none; white-space: word-spacing: background-color: #ffffff;"> <tbody> <tr style="border: 1px solid #cccccc; border-collapse: collapse;"> <td collapse; 9pt; vertical-align: top; left; width: 180px;"> <h1 style="margin: padding-top: 2px; 12pt; nowrap;"><span style="color: #000000;">Leica R</span></h1> <p 0.5em; padding-bottom: 0.5em;"><span #000000;">Super-Elmar-R 15mm<br Elmarit 28/2.8<br 35/2.8<br Summicron 50/2<br &nbsp;</span></p> </td> 179px;"> #000000;">Nikon F</span></h1> #000000;">20/2.8 AI-S</span></p> #000000;">Olympus OM</span></h1> #000000;">OM 18/3.5<br OM 21/2<br 21/3.5<br 50/1.8</span></p> #000000;">Pentax K</span></h1> #000000;">Every Pentax K-mount has protruding fin aperture lever. It does NOT fit.</span></p> </tr> </tbody> </table>" subject to certain limitations (see table above details). We are pleased report Panasonic Micro Four Thirds camera bodies capable autofocusing accurately even if maximum Booster combined is sub-f/1.0 range. Although our first foremost priority accuracy we instead take no short-cut but use precision-machined brass with chromium plating on both camera-body sides adapters levers ULTRA m43 uses advanced 5-element 4-group optical design incorporating ultra-high index tantalum-based glass. However #ffffff; justify;"><span #000000;"><strong>List manual focus lenses which REQUIRE MODIFICATION be used Booster</strong></span></h3> <span #000000;"> </span> <h3 1em; font-family: Arial great appearance able make strides autofocus speed well. <em><br Autofocus Lens Compatibility List </em><br <em>The following lists been tested. Other not listed here typically works well "<span #000000;">Since its inception order ensure smooth mounting left;"> style="text-decoration: underline; color: #000000;"><strong>Inaccurate</strong></span></p> #000000;">Canon EF 50mm f/1.8 II<br Sigma f/1.4 EX HSM<br Tamron SP 24-70mm f/2.8 Di VC USD A007<br 28-300mm f/3.5-6.3 XR A20<br 70-200mm A009</span></p> #000000;"><strong>Manual only</strong></span></p> #000000;"><strong>Not supported</strong></span></p> #000000;">Contax N modified by Conurus<br 17-50mm B005<br Zeiss ZE lenses</span></p> #000000;">Focus confirmation "chips"</span></p> </table> #000000;"><strong>Accurate only newer cameras such G7 GX8 </strong><br &bull; Canon f/4L USM (non-IS) 135mm f/2L 200mm f/2.8L II 300mm IS USM<br <strong>Manual Focus Some improperly-made M42 screw mount may short electronic contacts cause damage and/or body. "chips" Dandelion incompatible. Many (e.g. 28/2.8 Consistency Reliability New Mount support 600px; #ffffff;" /><br <strong> Always Enhance Never Degrade Performance Attached Master series Sony E-mount designing manufacturing recognized among professionals enthusiasts leaders workmanship. Contrary popular trend other factories using aluminum ring painted black camera-body-side strengthening adapter-lens connection ensuring tightness reduce wear prevent errors alignment issues from appearing. matte-black treatment keep internal reflection minimum maintain quality possible lens. All Adapters follow this tradition uncompromising precision appendages) would optics housing Booster. They need before they can safely Check sure there adapter/lens combination Scratches damages caused covered warranty.<br #000000;"><strong>Accurate</strong><br </span>&bull; 8-15mm Fisheye 20-35mm f/3.5-4.5 24-105mm 28-80mm f/3.5-5.6 35-80mm f/4-5.6 40mm STM f/1.2L 70-300mm f/4-5.6L 85mm 100mm Macro 100-400mm f/4.5-5.6L Extender 1.4x III 2x 18-35mm DC Art 18-125mm f/3.8-5.6 HSM f/4 Tokina AT-X PRO 11-16mm DXII</span><br <strong>Tested community makes very effective exotic materials at furthest limit glassmaking technology specifically optimized sensor filter stack robust build outstanding finish. Our Smart AdapterTM products add industry-leading interfacing Canada too.</em></span><br style="font-size: 12px; 16.8px; display: inline ! important; float: Helvetica 50/1.8 thanks!</strong><br #000000;">&bull; (Mark I) f/2.0L 400/2.8L I)<br <table cellspacing="0" cellpadding="3" true control lens' directly body.<br <strong>Select correct EF-MFT fits your camera: <img alt="" src="http://www.metabones.com/assets/a/stories/CompatibilityMTF.png" style="font-family: #000000;"><strong>-</strong></span></h3> so it effectively reduces crop factor mirrorless 2.0x 1.4x. almost perfectly corrected all fullframe SLR regardless aperture. will also work extremely many DX APS-C format provided image circle large enough. Optical Boosters good MTF any attached improved. Even latest generation Otus improved adding m43. <strong>Autofocus Optimum Balance Accuracy magnification 0.71x
 "Sigma 18-250mm F3.5-6.3 DC Macro OS HSM for Canon EF-S Mount"@en Mount - Fumfie.com"@en