The Sigma 500mm F4 DG OS HSM and Sigma 24-105mm F4 DG OS HSM are being lited abroad as discontinued for EF mount. Sigma 500mm F4 DG OS HSM Kitamura Camera: Discontinued products Map Camera: Discontinued products and new products in stock Bic Camera: Sales continue Yodobashi Camera: Discontinued Sigma 500mm F4 DG OS HSM: B&H … Continue reading Sigma 500mm F4 DG OS HSM and Sigma 24-105mm F4 DG OS HSM For EF Mount Discontinued