Canon isn’t stingy when it comes to fundus imaging offerings; unsurprisingly given their heritage, three ‘1-series’ Canon Digital NM Fundus Cameras were produced. There’s the CR-1 MK II and then the CF-1 and then the CX-1…all utilizing their signature Canon DSLR camera backs and all doing different things. Only one however allows a 50° non-mydriatic view and a vertical-tilt mechanism for a unique take on capture alignment. Although some newer fundus camera offerings feature wider angle views, the CF-1’s tilt swivel mechanism is truly unique- plus a great value. In order to achieve these extra 5 degrees, Canon has sacrificed a simple streamlined fundus imaging exam for something that takes marginally longer. Although the pan-tilt is relatively easy-to-use and to adjust after the patient’s gaze and position has been established, it feels like an extra step in the process- then still requiring manual fixation/working distance, focus, and final capture all from the operator. Instead of a monitor display like the CR-1 MKII employs, the CF-1 features a viewfinder lens for the operator to utilize in order to establish fixation and gaze. We did find this viewfinder to be helpful and effective despite questioning Canon’s decision to delete the display screen and add an automated focus/capture function for easier use.
OUR TAKE: All the Canon quality with 50° viewing and a vertical ‘Pan-Tilt’ swivel.
The CF-1 integrates a digital SLR camera from Canon’s renowned EOS series equipped with a high-sensitivity CMOS image sensor that achieves ultra-high resolution images with superior detail, contrast, and color fidelity. The sensor’s high pixel count ensures that images are sharp and clear even when enlarged, and its high sensitivity reduces the amount of light needed for image capture, a factor that helps increase patient comfort during examinations. After capture, images are transferred to the connected PC for immediate on-screen observation.
In terms of image quality and workflow efficiency, Canon’s digital retinal cameras are in a class of their own. Every aspect of image capture—from the precision retinal imaging optics to the advanced digital SLR technology—has been developed in-house to create a seamless, total imaging system that provides unsurpassed diagnostic image quality and speed. The CF-1 takes this a step further with an all-new ergonomic design that makes it easier and more comfortable than ever to achieve precise images during color/red-free imaging and fluorescein angiography.
The streamlined, ergonomic design of the CF-1 is not only inviting in appearance, it makes the camera a pleasure to operate. It’s easily adjustable to comfortably accommodate each examinee. Smooth, precise pan and tilt movement allows you to easily achieve desired views of the retina without requiring the examinee to move their gaze. Alignment and focus is easy as well, helping you to complete exams in less time.
The high-precision Canon optics of the CF-1 achieves wide, extremely detailed retinal images at a 50-degree angle of view. The 50-degree view angle enables easier alignment and focusing, with fewer errors and less flash flare – even with smaller pupil sizes. Additionally, only a low amount of light is needed to capture clear images.
With one push of a button on the CF-1 control panel, you can get a closer, more enlarged view of the retina for immediate review on the connected PC. “2x mode” works by automatically cropping out the peripheral edges of the image so that the region of interest is larger in the frame, making it quick and easy to confirm image focus and other factors. The end results looks the same as optical magnification, yet is achieved in a fraction of the time. Close-ups are exceptionally clear and detailed thanks to the high pixel count of the integrated digital SLR camera.
Get clear, sharply-focused images every time in tow simple steps. First, align the two halves of a split line using the focusing knob to bring the image into focus. Then adjust the working distance to avoid flash flare by shifting the joystick until the two side dots are clear in the viewfinder.
All CF-1 functions are integrated into a single, streamlined unit with a power supply that is built into the base. The new compact design enables closer face-to-face interaction with the examinee and allows easy access to the examinee’s eye. And the detachable digital camera conveniently receives its power through the body of the CF-1, so there is no separate AC adapter to plug in and cables are kept neatly tucked out of the way.
The motorized chin rest can be moved up and down to accommodate the examinee’s height using a pair of buttons located on the unit’s control panel.
Smooth, precise pan and tilt movement allows you to easily achieve desired views of the retina without requiring the examinee to move their gaze. Alignment and focus is easy as well, helping you to complete exams in less time.
Given the manual pan-tilt on the CF-1, the camera offers no automated functions in regards to flash, alignment, focus, or capture. All adjustments should be made manually by the operator.