What might the drawbacks be to having a polarising filter on my lens semi permanently!?Www@QuestionHome@Com
| Question Home |
Position:Home>Visual Arts> I usually by a UV or Skylight filter & leave it on my lens for protection, how aQuestion: I usually by a UV or Skylight filter & leave it on my lens for protection, how about a polarising filter!? What might the drawbacks be to having a polarising filter on my lens semi permanently!?Www@QuestionHome@Com
Best Answer - Chosen by Asker: You can leave the UV filter on the lens, but i wouldn't leave the Polarizing filter on, because you'll force a longer exposure, which, usually, is a bad thing!. Keep it in your pocket, and put it on as needed!. also, they're only good on sunny days, so you won't always need it on- especially now that winters coming in!. Www@QuestionHome@Com It would not be the best in all situations, especially if you're needing more light!. Leaving a polarizing filter on all the time would be great if you're doing a lot of landscapes or scenes with bodies of water it them!. Or, even urban architecture!. But for most other situations leaving a polarizing filter on all the time would not be helpful!. You might just skip it entirely and use a lens hood!. Www@QuestionHome@Com You wouldn't want to leave it on your lens permanently!. Its used to reduce glare on reflective surfaces such as glass or water!. You could use it for landscape photo's as it will make the blue sky darker, therefor making the white clouds appear brighter!. When its on your lens, you rotate the outermost part of the filter and watch the reflections disappear!. The filter will vary your exposure by 1 to 3 stops!. If your using one on a digital camera you will need a circular polarizer!. Www@QuestionHome@Com The polarizer is for special occasions!. It's great for reducing glare/ reflections in outdoor shots, intensifying the blue of the sky (& contrast with clouds), and it CAN be used as a neutral density filter to simply reduce the amount of light that reaches the sensor (in order to deliberately achieve slower shutter speeds!.) It should not be left on the lens semi-permanently, however!. This would necessitate slower shutter speeds when you don't want that, interfere with flash photography, and slightly deteriorate image quality (as would any extra layer of glass!.!.!. although I do accept this drawback with a UV filter!.)Www@QuestionHome@Com You lose a little bit of light!. I assume your thinking a circular polarizer!. If your lens rotates the end when it focuses you will get a different exposure turned than not turned!. But honestly, these are small drawbacks!.Www@QuestionHome@Com A polarizing filter cuts your light 50%!. If you were to take 2 polarizers and put them perpendicular to each other, you would block out all the light!. Www@QuestionHome@Com No ones mentioned, that if you stack these filters, you run the risk of some vingetting!. Www@QuestionHome@Com you will have to carry your tripod around a lot more and your action shots wont be as clear as you'd want them!.Www@QuestionHome@Com You will lose 2f stops !!Www@QuestionHome@Com |