This product has 9 calibers, please leave a message for the required caliber.
The product interface is a full metal threaded interface
The square cover diameter specifications are: 37mm, 39mm, 40.5mm, 43mm, 46mm, 49mm, 52mm, 55mm, 58mm. Please purchase a suitable square cover according to your lens caliber and filter size.
The inner circle diameter of the front mouth of the upper cover of all the above calibers is unified to 49mm, so the free lens caps are all 49mm.
Note: In order to avoid vignetting, this square mask is not suitable for ultra-wide-angle lenses with focal lengths below 18mm. It is recommended to use lenses with focal lengths above 25mm for better results.
(A lens cap will be provided with the purchase of the product)
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