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Camdiox CPRO series filters use only the very highest quality optical glass.

Reduce light entry to 10 stops.

ND filters reduce the intensity of light transmitted through the filter without any change in the original colours. It results in a longer exposure time depending on the type of the filter.

It makes sense when you photograph landscapes or running waters. For instance, if you photograph a waterfall and the exposure time is 1/125 sec, then placing an ND8 filter on the lens shutter speed will be longer by -3 LV, that is 1/15 sec., etc.

Suitable for Cokin Z series (100mm) filter holder with camera lens.

Super nano multi-layer coating to reduce flare and ghosting.

High level light transmission to give best picture quality.

In the photos below, the exposures are corrected in Photoshop CS6 as stated follows.

Photo taken with B+W filter has 50% over exposure.

Photo taken with Camdiox filter has NO exposure correction.

Findings :

Camdiox : This filter also produced good result. It did not cause any sharpness loss. No color cast as well. So as a result the big version of the photo above is 30% underexposed in Camera Raw in Photoshop CS6.

In terms of thickness, Camdiox is the most thinner/slimmest filter compared to B+W. So thats the reason Camdiox calls their filter as Ultra Slim ND1000 filter.

B+W : Although this filter also produced good result, its photo was underexposed by about 1/2 stop. And from the 100% Crop photo above (where there is 10stop exposure reduction) it is clearly seen that the photo is dark. So that means that that filter in fact gives 10.5 stops exposure reduction. So the exposure of our test photo has been increased by 50% in Camera Raw in PS6.

From the filter photo above it can seen that, the glass of B+W filter is darker compared to Camdiox filters. So this also explains that that filter in fact gives more than 10 stops. And in our test it gave 10.5 stop similiar like ND1500 filter.

And one another fact is that this filter causes slightly color cast, shifting to the pink a little. But it can be easily corrected in PS.

Regarding the weight, B+W filter is 50% heavier than Camdiox. 

Summary:

As u will see here, Camdiox filter has performed better than the B+W filters. Camdiox filter is almost 40% cheaper than B+W Filter but performe a better quality.

Regarding B+W filter, considering its high price I would expect much better result. Although slight color shift to pink can be corrected in PS, users expect no color shift from such an expensive filter. But bear in mind that B+W gives 10.5 stops.

Photo taken by Fotografci.Net

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