query: What improvements I could expect upgrading from Canon EF 55-250mm IS to a Canon 70 - 300mm?
positive_passages.docid: 154079
positive_passages.text: Should I buy a Canon 55-250mm lens or 70-300mm for my Rebel T3i?
negative_passages.docid: 7818
negative_passages.text: How can I get dramatic shallow DOF with a kit lens?
negative_passages.docid: 46184
negative_passages.text: What should I consider when purchasing a macro lens?
negative_passages.docid: 9259
negative_passages.text: How compatible are my old Nikon lenses?
negative_passages.docid: 131157
negative_passages.text: Should I replace the Canon 18-55mm f/3.5-5.6 kit lens with a 40mm f/2.8 or 50mm f/1.4?
negative_passages.docid: 40865
negative_passages.text: What should I do when I have lenses with different filter thread sizes?
negative_passages.docid: 154482
negative_passages.text: How do you make the resolution bigger on a Canon Rebel T5i?
negative_passages.docid: 137585
negative_passages.text: Canon 75-300mm f4-5.6 USM or 55-250mm f4-5.6 IS lens?
negative_passages.docid: 57370
negative_passages.text: What are the limitations of a typical kit lens as a general purpose lens?
negative_passages.docid: 55415
negative_passages.text: Panasonic Lumix G 25mm f/1.7 ASPH vs Olympus M. Zuiko 25mm f/1.8
negative_passages.docid: 140954
negative_passages.text: what's the relation between sensor size and image quality (noise, dynamic range)?
negative_passages.docid: 37632
negative_passages.text: How to compare the focal length of a 50mm prime lens with the default lens of a point and shoot camera?
negative_passages.docid: 41048
negative_passages.text: If I have a 18-55mm lens, is there a point in buying a 35mm prime lens?
negative_passages.docid: 12460
negative_passages.text: Why prefer the 18-55mm and 55-250mm lenses vs 18-200mm?
negative_passages.docid: 11051
negative_passages.text: Is there a difference between taking a far shot on a 50mm lens and a close shot on a 35mm lens?
negative_passages.docid: 507
negative_passages.text: Is there any significant difference between Nikon and Canon?
negative_passages.docid: 30952
negative_passages.text: What is the difference between EF and EF-S lenses?