full time on CPL


zzyzx

New Member
Aug 25, 2007
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#1
what is the implication of having a CPL filter on full time? i like it when blocking off reflections. any other times i find no difference other than adding 1 or 2 stops.
 

catchlights

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Sep 27, 2004
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#2
what is the implication of having a CPL filter on full time? i like it when blocking off reflections. any other times i find no difference other than adding 1 or 2 stops.
you don't need polarizer filter on at all time, it only needed at some situations.
it cut down 2 to 2 third stops, make you using bigger aperture, slower shutter or higher ISO bcos losing some lights, may have difficulty in focusing as well.
 

#3
having extra glass will always affect image quality, the only truely non-interfering medium is empty space. 2ndly, 1 or 2 stop could make a difference if you are trying to capture a moving subject or for night shoots.
 

Sep 14, 2006
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#4
I agree on moving object but night shoot for landscape or stationary will not have much effect as u will b using tripod anyway. With better high iso performance, losing 2 to 3 stops may not b a issue anymore.
 

daredevil123

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Oct 25, 2005
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lil red dot
#5
what is the implication of having a CPL filter on full time? i like it when blocking off reflections. any other times i find no difference other than adding 1 or 2 stops.
Do you put suntan lotion on your whole body 24 hours a day 7 days a week all the time?

:think:
 

daredevil123

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lil red dot
#6
I agree on moving object but night shoot for landscape or stationary will not have much effect as u will b using tripod anyway. With better high iso performance, losing 2 to 3 stops may not b a issue anymore.
So pay a lot more money just to buy camera with better ISO performance, only to dumb it back down with a filter.

Very wise thing to do. ;):bsmilie:
 

Diavonex

Senior Member
Sep 23, 2008
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#7
If you want to put on your dark glasses all the time, make sure you don't trip and fall.

It's difficult to focus with the CPL especially at night.

I only wear dark glasses when necessary.
 

Daoyin

Senior Member
Nov 25, 2008
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#8
two stops is a significant amount of light.
 

Edwin Francis

Senior Member
Mar 24, 2006
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#9
In addition to all the reasons already mentioned, you sure you want to use a dim viewfinder? Esp for night shots? Good way to miss something in your frame and an aid to bad composition.
 

pinholecam

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Jul 23, 2007
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#10
what is the implication of having a CPL filter on full time? i like it when blocking off reflections. any other times i find no difference other than adding 1 or 2 stops.
I will be the devils advocate here and ask you to try it out for sometime yourself. You do get some benefits from reduced reflections for some surfaces, better contrast and colors, reduced hazing and of course bluer skies (In The Right Situations :) ).

Of course you'd loose a stop or two and it does not work all the time (wrong angle; night time; no blue in the sky at all; etc);
No harm to experiment...
 

jimmygoo

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Jun 13, 2009
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#11
i leave it on because i'm too lazy to change it every now and then. Unless i have problems focusing, if not i will just leave it attached.
 

Diavonex

Senior Member
Sep 23, 2008
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#12
i leave it on because i'm too lazy to change it every now and then. Unless i have problems focusing, if not i will just leave it attached.
When the CPL is on:

1. Less light reach the sensor

2. You compensate by using wider Aperture, slower Shutter Speed or higher ISO

3. This will result in thin DOF, camera shake or grainy pictures

If you are lazy to remove filter, you're better off with a PNS camera.
 

giantcanopy

Senior Member
Feb 11, 2007
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#14
When i first started shooting some yrs back, i also hooked my Nikon slim CPL on my D80. Happy snapping away in Budapest for a day, and the idea of loss in light dawned as the sun starts to set. :bsmilie: The CPl became a PRN usage from Day 2.

Sometimes u have to try to learn. I did not have the hindsight to post the query, but there is definitely some take home message from the contributions of the forumers.

Ryan
 

neech7

New Member
Dec 17, 2009
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#17
Other than for better saturation (bluer sky) and cutting out reflections, the only other time I use a CPL is to decrease the shutter speed like when taking pictures of a waterfall in bright daylight.
 

jimmygoo

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Jun 13, 2009
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#18
When the CPL is on:

1. Less light reach the sensor

2. You compensate by using wider Aperture, slower Shutter Speed or higher ISO

3. This will result in thin DOF, camera shake or grainy pictures

If you are lazy to remove filter, you're better off with a PNS camera.
true, but since i use that only on my wide angle lens which i use almost exclusively for landscape, then it's ok. i'll be using a tripod and small aperture also.

What a waste of a nice FF camera... :cry:
maybe, but i don't use it for other lens, except the 16-35.

I suggest you visit this thread again one year later, to review this statement of yours.
i certainly will.
 

Gengh

New Member
May 6, 2007
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#19
true, but since i use that only on my wide angle lens which i use almost exclusively for landscape, then it's ok. i'll be using a tripod and small aperture also.
Wide angle + CPL may actually work against you, since you can get uneven darkening of the sky. Sometimes it's ok, but other times can look odd. Just have to keep in mind if you have the CPL on a WA lens all the time.
 

daredevil123

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Oct 25, 2005
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lil red dot
#20
true, but since i use that only on my wide angle lens which i use almost exclusively for landscape, then it's ok. i'll be using a tripod and small aperture also. maybe, but i don't use it for other lens, except the 16-35.
CPL on UWA is not the best idea.

http://www.earthboundlight.com/phototips/wide-angle-uneven-polarization.html

and examples of uneven polarization:
http://www.google.com.sg/images?q=uneven+polarization&hl=en&prmd=ivnsfd&um=1&ie=UTF-8&source=og&sa=N&tab=wi&biw=1728&bih=930
 

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