Title
Evaluation of the distortion of photographs using various focal lengths
Authors
Nilesh Suresh & Arvind Sivakumar*
Affiliation
Department of Orthodontics and Dentofacial Orthopaedics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
Dr. Arvind Sivakumar - Email:arvind.sdc@saveetha.com; Phone: +91 8220552400
Article Type
Research Article
Date
Received June 16, 2021; Revised September 20, 2021; Accepted September 20, 2021, Published September 30, 2021
Abstract
It is of interest to evaluate the distortion of intraoral frontal photographs using various focal lengths. Intra-oral frontal view pictures of 20 subjects were taken using a standard 18-55mm lens of a DSLR camera at three different focal lengths (18mm, 35mm, 55mm). 52 experienced orthodontists were chosen and they were asked to assess the photographs and choose the one with the least amount of distortion. Majority of the orthodontists selected the frontal photograph taken at a focal length of 35mm as the best photo with the least distortion among the three photographs. The photos taken at a focal length of 35 mm showed the least amount of distortion.
Keywords
Orthodontics, photography, distortion, survey.
Citation
Suresh & Sivakumar, Bioinformation 17(9): 814-817 (2021)
Edited by
P Kangueane
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
