With a construction of 6 elements in 5 groups, this Pentax SMC-M camera lens ensures amazing clarity, whenever your camera captures pictures. The 6 diaphragm blades of this Pentax 50 mm lens give you an effective background blur that enhances the central focus of your picture. The filter size of 49mm makes this Pentax camera lens scratch and dust resistant. The 1.5-foot close focus distance of this Pentax 50 mm lens gives you every detail of your object. Weighing just 6.457 oz, this Pentax camera lens easily fits on your lens and can be easily carried with you for outdoor shoots. You can minimize the blurriness in your pictures, using the super multi-coated Pentax SMC-M lens.