Anterior and posterior segment photography. An alternative approach using a dSLR camera adaptor
Article first published online: 31 OCT 2011
© 2011 American College of Veterinary Ophthalmologists
Volume 15, Issue 4, pages 280–287, July 2012
How to Cite
Pirie, C. G. and Pizzirani, S. (2012), Anterior and posterior segment photography. An alternative approach using a dSLR camera adaptor. Veterinary Ophthalmology, 15: 280–287. doi: 10.1111/j.1463-5224.2011.00963.x
- Issue published online: 3 JUL 2012
- Article first published online: 31 OCT 2011
- anterior segment;
- camera adaptor;
- digital photography;
- digital single lens reflex;
- posterior segment
Purpose To describe a novel digital single lens reflex (dSLR) camera adaptor for anterior and posterior segment photography.
Methods The adaptor was used to evaluate canine, feline, and equine patients presenting to Tufts Ophthalmology service. Anterior segment imaging was conducted with the adaptor mounted between a dSLR camera body (Canon 7D) and a macro lens (Canon EF-S 60mm/f2.8). Posterior segment imaging was performed with the aid of an indirect ophthalmic lens mounted in front of the macro lens. Coaxial illumination during viewing was provided by a single white light-emitting diode (LED) within the adaptor, while illumination during exposure was provided by the pop-up flash or an accessory flash. Corneal and/or lens reflections were eliminated using a pair of linear polarizers, having their azimuths at right angles to one another.
Results This dSLR camera adaptor provides quality high-resolution, reflection-free, images of both the anterior and posterior segments. It was easy to transport, assemble, and handle. The necessary adjustments, positioning, and focusing required for quality images were easily performed.
Conclusion The described dSLR camera adaptor provides an alternative to existing imaging systems. High-resolution image acquisition occurred at a fraction of the cost of established imaging system, particularly those devoted to the posterior segment.