49mm MCUV+CPL+ND1000+Adapter Ring Magnetic 4 in 1 Lens Filter Kit Waterproof Scratch-Resistant Anti-Reflection with Filter Pouch

SKU: SKU.1619

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Hi, you can attach center-pinch lens cap on this filter , except the ND1000 filter , the CPL, UV and magnetic adapter ring can attach lens cap. 
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No, the screwing UV and magnetic ring, only one can be selected; then add the CPL & ND as you like; when megnetic ring and uv used together, it will fall off easily. 
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Hello! If you use the magnetic UV filter separately, or use the magnetic adapter ring together with the CPL filter, you can use a normal lens hood on it. Does not require a larger thread. If you use the magnetic adapter ring together with the ND1000 filter, you cannot use another lens hood on it. 
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We installed it on our Canon RF 24-105 lens and it was possible to use the lens hood on this lens because the lens hood attaches to the lens via the bayonette mount which is on the outside of the lens diameter and the magnetic filter adapter screws into the thread on the inside of the lens. 
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No, the ND filter in the magnetic set is an ND1000 (extends the shutter speed by a factor of 1000). However, it would be technically difficult to construct a magnetic, yet adjustable ND filter. 
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1. Install UV: Yes Install the magnetic attachment ring: Yes With magnetic attachment ring + CPL: Yes Only after installing ND1000: no 2. No need to be a bigger size" 
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1. Install UV: Yes Install the magnetic attachment ring: Yes With magnetic attachment ring + CPL: Yes Only after installing ND1000: no 2. No need to be a bigger size"