This is just a mini review of the Sakar CPL filters I got on ebay recently, I got 3 different sizes for about £6.50 all in, very cheap in other words!
Build quality and finishTotally fine, they came supplied with sturdy plastic cases, the frames are metal and the rotating action is smooth.
Image qualityThe image quality is great! When the cost is put into consideration the results are even more impressive. To put it simply they do all that you could ask of a polarizer, blues are deeper, reflections are reduced and foliage and vegetation appears less shiny and colour saturation in general is improved. There was no apparent colour cast and no noticeable loss of sharpness or contrast. I could find no fault in these filters that is worth mentioning, especially at this price point.
Here's a simple before and after:
At this price point there is really nothing to lose, these filters are great value for money and deliver more than satisfactory results!
UPDATE: I have recently noticed strange behaviour with these filters when using lenses with longer focal lengths, for some reason where a filter will give perfect results on a wider lens the image will turn mushy on telephoto lenses, I am investigating the matter further and for now I can only recommend these filters for use on lenses 50mm or lower in focal length where they have performed and still are still performing perfectly well.