Yes, it may still work, but long storage doesn’t guarantee it will be reliable. It depends on how it was stored and whether it has age-related issues.

Things to check first:

• Battery compartment: look for old batteries and corrosion from leaks.
• Lens/viewfinder: check for haze, fungus, or damage.
• Shutter and wind lever: gently test them; if anything feels stiff, don’t force it.
• Seals and internals: old light seals can fail, grease can get sticky, aperture blades may stick, and shutter timing can drift.

One important note: the Olympus 35DC was designed for a mercury battery, which is no longer available, so you’ll need a suitable substitute if the meter requires one.

The safest approach is to have a vintage camera technician inspect it and, ideally, perform a CLA (clean, lubricate, adjust). That can catch common problems before you waste film. If you try it yourself first, be aware that light leaks are one of the most common issues with older film cameras.