Canon FP repair & common faults
Good coverageThe Canon FP is a 1964 mechanical 35mm SLR, a stripped-back version of the Canon FX released the same year with the built-in meter removed for photographers who preferred a handheld or clip-on meter instead. Everything about how it fails comes down to one thing, a fully mechanical horizontal-travel cloth shutter with no electronics anywhere in the body.
Mechanical horizontal-travel cloth focal-plane shutter · no built-in meter · FL breech-lock mount · no battery required
Common Canon FP faults
Canon FP shutter won't fire
A shutter that won't release, or only fires some of the time, is the signature fault on this body and is almost always old lubricant that has thickened around the shutter mechanism rather than a broken part. Check the film advance lever is wound fully first, a half stroke can look identical to a stuck shutter.
Canon FP 1/1000 shutter speed uneven or overexposing
Exposure that only goes wrong at the fastest speed, with everything slower looking fine, points to slight unevenness or wear in how the two curtains cross the frame rather than anything electrical, this body has no electronics to fail. It is a common finding on well-used examples and rarely troubles ordinary shooting at other speeds.
Canon FP slow shutter speeds sound sluggish or hang
A hesitant or dragging sound confined to the slower speeds points at the separate timing mechanism that governs them running dry, not the same fault as a dead release at all speeds. It is a wear pattern typical of a camera that has sat unused for years rather than one that has seen heavy use.
Canon FP viewfinder dim or hazy
A dim, hazy or spotty view through the finder on a camera this age is usually just accumulated haze on the prism and mirror surfaces, not a sign of trouble with the shutter or anything else in the body. It sits apart from the rest of the fault picture and has no bearing on exposure.
Canon FP meter not working or no needle in viewfinder
This body was built without a light meter at all, Canon removed it from the FX that preceded it for photographers who judged exposure themselves or used a separate meter. A blank viewfinder with no needle is normal for this model rather than a fault, worth checking whether a clip-on meter is meant to sit in the accessory shoe instead.
Stuck on your Canon FP?
Describe the fault or drop in a photo. The technician reads the service data, marks up what it sees, and walks you through it. Pay as you go, no subscription.
Try it now ›Scatto is a reference tool for people who service film cameras. It explains mechanisms and quotes service data, but it cannot see your camera at the bench, so verify anything load-bearing before you act on it.