what happens if you stack 2 UV filters on a lens? Considering one is Slim and is a Polarizer combination?

Question

I know the issue of vignetting if I stack two fitlers. However I heard if i stack a Slim polarizer, the problem will be solved. Is that true? Another question comes up is that the SLim Polarizer I am looking online is a combination of UV/Polarizer ... and what does that mean? Does that mean I wasted money on my B+W UV only filter? If these two are stacked together (both with UV in them) what happens? THe slim polazier I am looking at is 5mm thickness. Is that considered slim?? HElp

Answer 1

The uv filter doesn't do much, it's mostly clear glass and used to protect the lens. It's the same for the skylight filter.

You can stack filters unless you are using a wide-angle lens. If your lens is wide enough, it will see the edges of your filters and the corners of your images will be dark.

Don't worry too much, the polarizing filter is a great addition. The UV is a great filter for protecting your lens.

However, only use the polarizer in sunlight. It will block 1 1/2 stops of light and you won't notice the difference indoors. It's great for making colors more saturated and removing reflections.

Answer 2

In my opinion, UV filters make such a small difference that a lot of people don't even use them for that. In fact, they are more useful as protection for your lens than they are for filtering out UV light.

I would just use the polarizer by itself, forget about stacking it with the UV. You're probably not going to see a difference with it.

If you really want to block UV and filter polarized light, get the combo. That would be the better solution than stacking.

The reason why B+W filters are more expensive than other brands is because of the coatings used. High quality coatings ensure that the least amount of light is lost passing through the glass.

Also, everytime you attach a filter to your lens, you increase the numeber of surfaces the light must pass through the reach the sensor.

More surfaces = more chance of light bouncing around before it lands on the sensor. This can cause your photos to have weird ghostly refections of bright highlights in your picture. This effect is VERY obvious when you take pictures at night.

As far as stacking goes, why not just try it, and see what the photo looks like. There's no real harm to the lens or the camera. Just be prepared for some vignetting on the wide end.

Answer 3

Lets see, school just started back so I say look in chapter one of your science book.

Answer 4

do not stack. juz use either one of them.