• Allow M42 Screw mount lenses used on Pentax K mount camera body.

• Compatible with Pentax K camera includes: Pentax K100D, K110D, K10D, K10D Grand Prix, K100D Super, K200D, K20D, K-m, K-7, K-x, K-r, K-5, K-01, K-30, K-5 II, K-5 IIs, K-50, K-500, K-3, K-S1, K-S2, K-3 II, K-1, K-70, KP etc.

• Made of brass and aluminum. Stable, precise and durable construction. Manually operated. Infinity focus allowed.

• For heavy medium format lenses, we suggest to use with a telephoto bracket and a tripod to balance its weight when shoot.

• 30 Days No Reason Return, 12 months quality guarantee, 100% satisfaction assurance.