<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><table class="ke-zeroborder" width="100%" cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td> <div> <p> </p> </div> <div style="padding:15px;border:solid 1px #aeaeae;"> <span style="color:black;font-family:inherit;font-size:12px;">M42 To M42 17mm To 31mm Lens Adjustable Focusing Helicoid Adapter Aluminum Alloy Camera Lens Adjustable Focus Helicoid Adapter Macro Extension Tube<br /> </span><strong>Feature:&nbsp;</strong><br /> <strong>1. Precision Construction: </strong>The lens adjustable focusing helicoid adapter is crafted from anodized aluminum with a sleek black finish, ensuring high quality and durability. Its design is for photographers looking for reliable equipment to enhance their macro photography capabilities.<br /> <strong>2. Versatile Focusing Range: </strong>Offering a focusing range from 17mm (minimum) to 31mm (maximum), the camera lens adjustable focus helicoid adapter provides a total movement distance of 14mm for precise focus control. This feature allows photographers to achieve the focus for detailed macro shots or when using vintage lenses without a focusing ring.<br /> <strong>3. Compatible with M42 Mount Lenses: </strong>Designed to accommodate M42 screw mount lenses, such as those from Carl Zeiss or Pentax, the adjustable focusing helicoid adapter is a versatile tool that can also be used with enlarger lenses. This compatibility opens up a world of possibilities for photographers looking to use classic lenses with modern camera bodies for unique photographic effects.<br /> <strong>4. Macro Photography Enhancement:</strong> The lens macro helicoid adapter is an essential accessory for macro photography enthusiasts. It provides fine focus control for lenses without a focusing ring, allowing for precise adjustments to capture stunning macro images with clarity and detail.<br /> <strong>5. Manual Focus with A/M Mode Metering:</strong> While using the focusing helicoid extension tube, automatic aperture and autofocus functionalities will not operate. However, the adapter supports A/M mode metering for manual focusing, enabling photographers to achieve accurate focus manually while maintaining metering capabilities. This ensures that even with manual adjustments, users can capture perfectly exposed images. Compatible with M42 lenses and cameras, this adapter is a must-have for photographers looking to combine the charm of vintage lenses with the precision of modern photography techniques.<br /> <br /><br/><br/><span><strong>Specification:</strong></span><br /> <span>Origin: Mainland China</span><br /> Material: aluminum alloy<br /> Colour: Black<br /> Applicable products: M42 lens and camera<br /> Length adjustment: 17mm to 31mm<br /> Product size: 59*59*21mm/2.32x2.32x0.83inch<br /> Net weight: 52g<br /> <br /> <p> <strong>Note:</strong><br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement. </p> <br /> <br /> </div> <div> <br /> </div> <div style="padding:15px;border:solid 1px #aeaeae;"> 1 x&nbsp;Lens Adjustable Focusing Helicoid Adapter <br /> </div> <br /> <div style="text-align:center;"> </div> </td> </tr> </tbody> </table></div></div>