Walimex 2x converter T2

Typically, a long focal length of 500 mm is housed in a mount that is also 500 mm long. To achieve a handy, universally applicable, and compact solution, this lens employs a clever trick. The light path is simply "folded" using two high-precision ground mirrors. This results not only in a compact design and over 50% larger aperture compared to a lens of the same focal length but also a very short minimum focusing distance of just 2 meters. Focusing is done manually. The lens can be used with either automatic exposure or manual exposure settings, depending on the camera. Due to the folded light path, it is technically impossible to incorporate an iris diaphragm. If light reduction is necessary, this can be easily achieved with neutral density filters that screw onto the rear lens. There is a thread M34x0.5 available for this purpose. Conveniently, the lens does not have a fixed defined infinity stop. T2 connection, operating tip: The T2 adapter is screwed onto the optics, and then the lens is locked in place. The side screws on the T2 adapter allow for the lens to be "uprighted" after loosening - aligning the index upwards. Retightening the screws securely holds the optics and adapter in place. Save time in post-processing. Many lens errors such as distortion, edge softness, or vignetting occur in the outer areas of the image. When using a lens designed for full-frame on a camera with an APS-C sensor, these areas are not utilized. This ensures maximum quality, eliminating the need for additional post-processing time to correct lens errors.