Extended Depth of Field

EDOF™ Technology – Bring More Into Focus

Available only on Olympus’ new cutting-edge EVIS X1™ EZ1500 series endoscopes, Extended Depth of Field (EDOF) technology creates a continuously sharp, high-resolution image with minimal focal adjustments at any point during an endoscopic procedure.¹

The gastrointestinal tract often makes it difficult for a physician to keep their endoscopic image stable and in focus. Thankfully, EDOF technology allows precise observation through continuous broad focus and seamless magnification. The continuously sharp image reduces the need for focal adjustments, and enhanced visibility aids in making the endoscopic procedure efficient. It may support the identification and diagnosis of abnormalities with confidence.¹

EDOF technology is exclusive to the GIF-EZ1500 gastroscope and the CF-EZ1500DL/I colonoscope. These scopes also include an ErgoGrip control section and are compatible with TXI™, RDI™ and NBI™ technologies when connected to the EVIS X1 CV-1500 video system center.

The video below compares a clinical image produced by the GIF-HQ190 gastroscope versus a clinical image produced by the GIF-EZ1500 gastroscope, both using white light in Normal mode.

GIF-HQ190 vs GIF-EZ1500
White Light in Normal Mode

The video below compares a clinical image produced by the GIF-HQ190 gastroscope versus a clinical image produced by the GIF-EZ1500 gastroscope, both using TXI technology in Normal mode.

GIF-HQ190 vs GIF-EZ1500
TXI Technology in Normal Mode

How It Works

EDOF technology projects two images with identical content at different focal lengths and combines them into one image in total focus. Light entering the scope’s objective lens is split into two separate beams. The beams are simultaneously projected onto an image sensor to generate a single image with a wide depth of field, thereby reducing the need for focal adjustments during a case.

This technology allows the EVIS X1 EZ1500 series scopes to provide closer-focused observation in near and normal modes, as well as higher magnification, than the GIF-HQ190 and CF-HQ190L/I scopes.¹ It helps a physician obtain sharp images with minimal focal adjustments, which may aid in their detection and diagnosis in a procedure.¹

Learn More About the GIF-EZ1500 Gastrointestinal Videoscope
Learn More About the CF-EZ1500DL/I Colonovideoscope
Learn More About the EVIS X1™ Endoscopy System

Clinical videos provided by Dr. Stefan Seewald using GIF-HQ190 and GIF-EZ1500 gastroscopes.

1 Data on file with Olympus (DC00493386, DC00433276, DC00510434 and DC00567392).

The EVIS X1 endoscopy system is not designed for cardiac applications. Other combinations of equipment may cause ventricular fibrillation or seriously affect the cardiac function of the patient. Improper use of endoscopes may result in patient injury, bleeding, and/or perforation. For complete indications, contraindications, warnings, and cautions, please reference the full Instructions for Use (IFU) that accompanied your product.

TXI, RDI & NBI technologies are not intended to replace histopathological sampling as a means of diagnosis.

EDOF, TXI, RDI & NBI are trademarks of Olympus Corporation, Olympus America, Inc., and/or their affiliates.