Name: Bower 48mm Plastic Lens Cap
Brand: Bower
SKU: BOWLC48
Price: 4.99 USD
Availability: Discontinued
Rating: 4.5 (4 reviews)

Bower Lens Cap

Bower 48mm Plastic Lens Cap

Bower

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Bower Lens Caps

Bower Lens Cap 

Top Rated Gear: Bower 48mm Plastic Lens Cap Cap Type: Front Lens Cap, Color Design: Black

It fits perfectly my old Canon AF35M.  It locks in with the two side springs.
The front of the cap has a rough finish.  I would prefer a simple matte finish.  Other than that, I am very happy with the cap.

Perfect.

This fit perfectly on my MD 50mm 2.0
Solid feeling, I mean it's not like oem but it feels good and clicks in nicely.

Works just like it should.

It came broken but i figured it’s too much of a hassle to return lol

It came broken

I buy bigger filters so that I can use them on smaller filter sized lenses. It was exactly what I needed, it's definitely a weird cap compared to a normal sony cap, but it feels secure and performs well.