Three adapters with adjustable C-mount thread and five attachment lenses are available. Please note that vignetting may occur with the 0.5x and 0.67x adapters if the chip sizes are too large. We recommend a 1/3" chip for the 0.5x adapter and either a 1/2" or 1 1/8" chip for the 0.67x adapter. For precise selection of components, adapters and attachment lenses, we offer a matrix for download below.