3 Filter Kit UV/FLD/CPL

I bought this filter kit off eBay and I tested them yesterday after receiving them in the mail and I don't see any difference. Is it because these filters are so cheap that I am not seeing a difference? Or am I doing something wrong?

http://cgi.ebay.com …&ssPageName=STR​K:MEWNX:IT

Thanks.

Well, a UV won't have a discernable effect on colour rendition unless you've got a strong UV component to your light, such as when you're at higher altitudes or photographing from considerable distance.

You don't really need an FL-D filter with digital cameras because there's a Fluorescent white balance setting; AWB doesn't do badly at all in correcting, and if you're really concerned you can (and should) do a custom white balance. If you use the FL-D with the camera in auto white balance, the camera will still be trying to correct the colour same as it would if you had no filter there. Any of the three non-filter options will have the added advantage of not costing you a stop or so of light.

Polarizing filters help cut glare and reflection from non-metallic surfaces. You need to adjust the filter's orientation to see the maximum effect. And the effect is sensitive to the sun's angle, as well, being strongest when you're looking at right angles to the sun and weakest with the sun directly in front of or behind you.

But seeing the price for those three filters, I have to be very dubious about their quality. In general, with photographic equipment you'll get what you pay for. And those are so inexpensive that I'd re-examine your photos, not for colour enhancement as much as for distortion due to the glass not being perfectly flat, or under strain from uneven pressure by the filter retaining ring (that holds the glass in the filter ring).

What Jon said, and courtesy of him, here's a good place to start to figure out which (if any) filters you may need and what to consider when purchasing: LINK. I'd turn that current set into coasters.

Thank you both. I ordered 58mm filters for my other lens too. And these ones though the same price actually works. But the ones in the link I posted above are worthless.