When selecting Lucky Photo Paper, you must prioritize Grammage (Weight), typically ranging from 180gsm to 260gsm, to ensure the paper is sturdy enough for high-end prints. Pay close attention to the Surface Finish (Glossy, Matte, or RC Satin) as it dictates the visual output. For professional durability, ensure the paper features Resin Coated (RC) technology, which provides superior waterproof capabilities and instant-dry performance. Additionally, verify the Whiteness index to ensure accurate color reproduction and high contrast.