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Front Lens Cap for 77 mm Lens
$13.99
$13.99
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- High-quality replacement front black lens cap
- Protect your lens from dust and dirt
- Compatible with 77 mm lenses
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All rights reserved. Sony, the Sony logo, Alpha, and α are trademarks of Sony. All other trademarks are trademarks of their respective owners.
All rights reserved. Sony, the Sony logo, Alpha, and α are trademarks of Sony. All other trademarks are trademarks of their respective owners.
How do I know if the ALC-F77S will fit my lens?
This cap is designed for lenses with a 77 mm filter diameter, which is usually printed on the front of the lens or listed in the lens specifications. If your lens shows "Ø77mm," this cap will fit.
What kind of attachment mechanism does this lens cap use?
It uses a center-pinch, snap-on design, letting you easily attach and remove the cap by pinching the center tabs, even when a lens hood is mounted.
What does this front lens cap protect the lens from?
The cap helps protect the front element of the lens from dust, dirt, smudges, and minor scratches when the lens is not in use.
Is the ALC-F77S a genuine Sony replacement part?
Yes, the ALC-F77S is a high-quality replacement front black lens cap designed for lenses with a 77 mm filter diameter.
Can I use this lens cap on non-Sony lenses with a 77 mm thread?
As long as the lens has a standard 77 mm filter thread, the cap should fit mechanically, though it is designed and branded for Sony lenses.
Does the lens cap affect image quality or camera operation?
No, the cap is meant to be removed before shooting and simply provides protection when the lens is stored or carried; it does not affect focus, exposure, or other camera functions.
Which Sony lenses is the ALC-F77S compatible with?
It is compatible with any lens that has a 77 mm filter thread, including Sony Alpha lenses such as certain 70-200mm and 100-400mm models that use a 77 mm front.
How much does the Sony ALC-F77S 77mm Front Lens Cap cost?
MSRP is listed as $13.99. Given that, these models can go on sale from time to time, and there are several other opportunities to save on price like through their group discounts for education, healthcare and military/veterans (ID.me & Unidays) along with their free loyalty program that gives up to 5% back in points.
*FAQ generated on 07/23/2026. Financing, pricing and promotions may no longer apply.