Purpose Behind โ€˜That Rubber Thingโ€™ On Your Canon Camera Strap

Shivani Reddy

It might be time to fish out your original Canon camera straps from that dusty manufacturers box, especially for travel and landscape photographers. I know that most photographers usually buy a 2nd or 3rd party camera strap to displace the use of the black & red craftsmanship from Canon, but this trick might prove helpful to you.

canon-camera-neck-strap-rubber

The small rectangle of rubber was actually included as part of the strap to thwart light from entering into the viewfinder. In collaboration with DIY Photography, photographer Bassam Sabbagh displays its use in a short video.

canon-camera-strap-rubber

Straight from the Canon 80D manual, we find that the โ€œrubber thingyโ€ that Bassam refers to is an eyepiece devised to keep stray light from entering โ€œwhen using self-timer, bulb exposure, or a remote switch.โ€ The stray light that leaks through can cause the picture to look dark and therefore the rubber rectangle of magic is meant to act as a wall to block light from seeping in.

Although light leaks through the optical viewfinder isnโ€™t a common occurrence, for time-lapses and long exposures it can be a precautionary measure for low light conditions. It is important to note that โ€œprism above the mirror thatโ€™s used to redirect the imageโ€ makes it possible for light to leak through, even though the mirror retracts up when a photo is taken (DigitalTrends).

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