K100d flowers Parks Sigma 18-50mm 2.8 EX DC Macro Pentax Optio 750Z 35mm Wildlife SMC FA 50mm 1.4 Olympus E-PL1 K1000 Macro Minolta MC 55mm f/1.7 B&W Pentax MZ-3 Beach Olympus XZ-1 Zuiko 17mm PENTAX K-50 Peter Winter