Filters...
Jan 4, 2013 15:45:34 #
Can a UV and polarized filter be used at the same time? This is my first time really learning about filters.
Jan 4, 2013 15:54:21 #
Yes you can use both...but remember..each filter you put on the front of your lens...your going to have to adjust for the light loss...either slow down the shutter...open the aperture....or raise the iso setting.
Jan 4, 2013 16:02:05 #
rsguiting_usmc wrote:
Sure. While you will not see any light loss (as the UV filter is all but 99% clear) you may begin to see some vignetting when using wider angle lenses. Can a UV and polarized filter be used at the same time? This is my first time really learning about filters.
But frankly, I see no advantage to using both of these filters (unless you just want to add and remove the CP while leaving your UV in place to protect your lens.).
I prefer removing the UV while installing the CP, but that is more personal preference than any real technical advantage (sans possible vignetting when using a really wide angle lens).
Jan 4, 2013 16:24:39 #
Jan 4, 2013 16:47:41 #
Mac wrote:
Just for convenience. You can, but why would you?
Maybe you just want to add and remove the CP while always leaving your UV in place to protect your lens.
That's OK with most lenses.
Jan 4, 2013 17:48:01 #
Thanks, guys. This really helps. I do want to protect my lens by leaving the UV on but at the same time, I do want to take great pictures so I don't mind changing the filters. Is the CP primarily used with the sky in the background?
Jan 4, 2013 18:47:57 #
rsguiting_usmc wrote:
Thanks, guys. This really helps. I do want to protect my lens by leaving the UV on but at the same time, I do want to take great pictures so I don't mind changing the filters. Is the CP primarily used with the sky in the background?
Not necessarily. A CP filter can remove glare and reflection from glass and water.
Jan 4, 2013 21:52:33 #
Jan 5, 2013 06:33:49 #
rsguiting_usmc wrote:
Thanks, guys. This really helps. I do want to protect my lens by leaving the UV on but at the same time, I do want to take great pictures so I don't mind changing the filters. Is the CP primarily used with the sky in the background?
Apart from the lens protection issue the UV filter will do nothing when used in conjunction with a CPL, except to add another two air/glass surfaces to worry about. I would definately remove the UV when using the CPL.
CPLs have a multiple role. They will darken a blue sky, making the clouds stand out better. For the best effect the sun needs to be at 90 degrees to the lens, then just rotate the filter for maximum benefit. Obviously, you can't always have the sun in this position and for every degree off 90 the effect will be reduced until you get to the point where the sun is aligned with the lens axis and no amount of rotating will have any effect.
The other useful thing about CPLs is their capability to reduce glare and reflections off surfaces like glass, water etc. Again, the angle of view is relevant, but in some circumstances you can take a picture through a shop window and omit all the reflections.
CPLs are a great accessory and every camera bag should have one.
Jan 5, 2013 08:38:11 #
rsguiting_usmc wrote:
Thanks, guys. This really helps. I do want to protect my lens by leaving the UV on but at the same time, I do want to take great pictures so I don't mind changing the filters. Is the CP primarily used with the sky in the background?
CP filters provide two main benefits; they increase colour saturation, (blues will be bluer, reds will be redder etc.), and they will reduce or eliminate reflections on non-metallic surfaces. The optimum angle for reducing reflections is approx. 30-35 degrees, but they will not work on bare metal surfaces, painted metal yes, but not bare metal, and they will not work at ninety degrees. Because they are colour neutral they can also double as ND filters, giving up tp 3 x stops reduction in light.
Jan 5, 2013 13:02:17 #
Jan 5, 2013 13:05:54 #
rsguiting_usmc wrote:
But can CPLs be used indoors/outdoors with no sunlight?
Yes. A CPL will cut through reflections on non-metalic surfaces regardless of the light source or it's intensity. The saturation effect on the sky only works on blue sky (obviously) and is directly affected by the angle of the light source (i.e. Sun) to the sky. If you're shooting a bit of blue sky and the sun happens to be behind a cloud it will still work.
Jan 5, 2013 15:20:32 #
Jan 5, 2013 15:38:50 #
frmr_av8r
Loc: Helena, MT by way of Afghanistan
rsquiting usmc...I keep a CPL on my lenses almost always. I have used it extensively indoors (primarily aircraft hangars) with no negative effects other than the need to get a bit more light into the lens. I also take a lot of photos from the inside of a helicopter and it makes the colors so much more vivid while also cutting through some of the haze that can wash out a picture.
With a print camera, a long time ago, I took some pictures using a tripod at night and got an inverted ghost image of the Sydney bridge when I had two filters on my lens. There's a discussion of that in another thread on this forum if you want to look at that too.
Have fun with the photography and Semper Fi!!
With a print camera, a long time ago, I took some pictures using a tripod at night and got an inverted ghost image of the Sydney bridge when I had two filters on my lens. There's a discussion of that in another thread on this forum if you want to look at that too.
Have fun with the photography and Semper Fi!!
Jan 5, 2013 20:39:14 #
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