Hi guys, looks like i have come to the right place to get decent information. I am thinking about buying a sigma 105 F2.8 EX macro lens for my 300D and was wondering if this lens is what you guys woudl recommend for very good macro shots. I am mainly going to try and use it for moths and butterflies. Also what flash should i look at buying as i really want to get the best shots i can. any advuce appreciated. many thanks.....Johnny.