Sigma Lens Hood Adapter 20-700
Related Faq
Q
I have a tokina 11-20 mm ultra wide angle - does the filter set have restrictions or vignetting in the 11mm range?
A
So with my sigma 10 20, only a little with 11 mm but no longer visible with 12 mm (aps-c) 
Q
Are there (Female) threads on the front of this filter "Can you stack (77mm filters) on top of this filter".
A
For this 77mm ND filter,the lens cap/hood should be 86mm. 
Q
Can I still use a normal lens hood on it? Does it need a larger size?
A
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. 
Q
Do you know if this will fit sigma 56mm 1.4 lens
A
Look on the lens and it will tell you the size of the filter required,. 
Q
Can you attach a lens hood on the 52mm lens?
A
hello , if you put a lens hood on 52mm filter, you need a 55mm lens hood 
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