PX 680 Color Shade FF pictures may display a small undeveloped patch at the top of image area when used in folding type cameras (such as the SLR 680/ 690 and SX 70 cameras with an ND filter)
Our engineers in the Netherlands are working hard to overcome this issue for future film generations. To avoid this undeveloped patch with the current First Flush materials you can also apply this easy technique:
At the same time as pressing the shutter release button, slightly press down the film compartment flap of your camera as shown in the video. Do not apply excessive force, as this may damage your camera.
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