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Test Of My Circular Polarizer
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Sep 10, 2012 16:12:54   #
MCHUGH Loc: Jacksonville, Texas
 
Wheezer1 wrote:
I might have to write a book on my past mistakes but that might be a mistake too..Wheezer

MCHUGH wrote:
I agree with the other comments that you over polarized. Turn until you get a balance. If you wanted to remove all you did a great job. I once made the mistake of over doing this in a picture I did of a fish pond. The fish looked like they were floating in mid air. Used this slide when I taught a beginner class in a college course to show what not to do.


If I were to wright a book of all my mistakes it would be to big to pick up by a normal size man. I did learn a lot by making them and must admit some I made more than once. The repeats really made me feel dumb, but the corrections were more solidly in place afterward.

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Sep 10, 2012 17:03:52   #
dpullum Loc: Tampa Florida
 
Julian said in part: "As much as circular polarizers can assist in eliminating reflections thus enhancing the true colors ... give some photographs an artificial and unrealistic appearance; ... the scene did not look real in terms of what the naked eye would perceive:"

The Key Word is PERCEIVE . The God of the dumpster gifted me a Dell Color Laser Printer 2135cn Multifunction. The Black cart was "empty" until I performed the laser cart dance to redistrubute.... then the sensor error appeared! The Bible so nicely placed with the unit gave me ceremony to perform and WALA a functioning $550 printer. Ran a test, using the copy function... colors were off... then sipping coffee I contemplated that if the flesh colors were close, then 6 minutes or 6 months later we as photographers would not recall what the exact color oject in the photo really were.

We accept an ocean or lake with more intense color than it really is and perhaps prefer it. With Digital "ART" photography often we strive to make "VIVID" the colors. and is this any different from the WoW colors of the old slide film projected at high lum density reflected off of a glass bead screen.
http://www.kenrockwell.com/nikon/d300/picture-control.htm
Rockwell says in part and shows examples of the color distortion he "likes"..... "For photos of things, I usually start at VIVID and crank the saturation all the way ... to save these preferred Picture Control settings in the Manage Picture Controls ..."

So, does it really mater Julian if the photo is not real and is more a form of Art?.... no right answer certainly rather a mater of taste.... Stalin liked cows that looked like cows and the typical peasant woman, much the same.... sorry national geo and my apologies to any Russians on this thread.

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Sep 10, 2012 17:32:06   #
Wheezer1
 
jeep_daddy wrote:
chapjohn wrote:
Danilo wrote:
"I used a ND8 filter to keep the ship and pine branches in focus."

I don't understand this statement, Wheezer. An ND8 would require either a larger aperture (thus limiting depth-of-field) or a longer shutter duration (having no effect on depth-of-field).


I too, am confused. Every CPL I have does not have max and min settings, you turn it to get the best image you want. However, I have variable ND filters that have min and max settings. Can you explain your question better?
quote=Danilo "I used a ND8 filter to keep th... (show quote)


I'm sure he just means maximum effect or darkening of the water/sky. The title of this thread is 'Test of CPL Filter'.

I'm also of the opinion that it is too much. The sky is too lavender and the water hasn't much detail. A little adjustment of the filter might tone that down a bit.

If the intention of this thread is to show (test) with and without a CPL (CPL adjusted for most effect) then that's cool. But with all the lavender in the sky I just can't like it. Make sure that when you upload your images that you're using sRGB color space. If you use ProPhotoRGB and forget to convert then the sky will look lavender too.
quote=chapjohn quote=Danilo "I used a ND8 f... (show quote)

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Sep 10, 2012 17:38:28   #
Wheezer1
 
Jeep_daddy, thanks for the reply.. I think the reason the water has less detail is because I was using the ND filter and this required a longer exposure..I do like the colors in the picture with the CPL lens adjusted for the darkest setting, sometimes the water has these lighter shades of blue depending on the angle of the sun..

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Sep 10, 2012 17:47:16   #
Wheezer1
 
Interesting dpullum, I took another long look at the pictures and am wondering if my monitor is not adjusted correctly..I see more blue than green in the highly corrected photo..I guess my eyes could be out of calibration too, yes I am a little blue green color blind.....Thanks to everyone for your posts. Wheezer
dpullum wrote:
Julian said in part: "As much as circular polarizers can assist in eliminating reflections thus enhancing the true colors ... give some photographs an artificial and unrealistic appearance; ... the scene did not look real in terms of what the naked eye would perceive:"

The Key Word is PERCEIVE . The God of the dumpster gifted me a Dell Color Laser Printer 2135cn Multifunction. The Black cart was "empty" until I performed the laser cart dance to redistrubute.... then the sensor error appeared! The Bible so nicely placed with the unit gave me ceremony to perform and WALA a functioning $550 printer. Ran a test, using the copy function... colors were off... then sipping coffee I contemplated that if the flesh colors were close, then 6 minutes or 6 months later we as photographers would not recall what the exact color oject in the photo really were.

We accept an ocean or lake with more intense color than it really is and perhaps prefer it. With Digital "ART" photography often we strive to make "VIVID" the colors. and is this any different from the WoW colors of the old slide film projected at high lum density reflected off of a glass bead screen.
http://www.kenrockwell.com/nikon/d300/picture-control.htm
Rockwell says in part and shows examples of the color distortion he "likes"..... "For photos of things, I usually start at VIVID and crank the saturation all the way ... to save these preferred Picture Control settings in the Manage Picture Controls ..."

So, does it really mater Julian if the photo is not real and is more a form of Art?.... no right answer certainly rather a mater of taste.... Stalin liked cows that looked like cows and the typical peasant woman, much the same.... sorry national geo and my apologies to any Russians on this thread.
Julian said in part: "As much as circular pol... (show quote)

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Sep 10, 2012 20:41:10   #
peggyjom Loc: Pacific Northwest
 
Julian wrote:
As much as circular polarizers can assist in eliminating reflections thus enhancing the true colors of certain objects and scenes, they can also give some photographs an artificial and unrealistic appearance; even though you managed to darken the sky and bring out the clouds, the water, being the most predominant part of the scene did not look real in terms of what the naked eye would perceive: the reflection from the waves was taken away by the polarizer making the water look like a green blob while showing an unnatural view of the sand below its surface.

Nevertheless, if the purpose of the photograph was to enhance the foreground and the tree's true colors, then you accomplished your goals.

Why the ND8 filter?
As much as circular polarizers can assist in elimi... (show quote)
Looks like maybe correcting the white balance may help a bit it is a bit to warm on my screen the lower clouds have a pinkish tone to them. I don't think it is too bad though. For some reason the CP filter just hangs out in the bag more often or not!

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Sep 10, 2012 21:42:52   #
dpullum Loc: Tampa Florida
 
Wheezer1, did you mention what camera/lens and
2. what CPF brand you used (big previous debates about brand/cost of CPF)
3. Also what time of day did you take the photos?
4. What was the direction of the sun with respect to the direction of the photograph.

Wow, lots of questions in a brief paragraph.

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Sep 11, 2012 09:35:08   #
Wheezer1
 
dpullum, I was using my Canon Rebel with a Canon telephoto lens at 100mm..The CPF is a vivitar, not expensive at all. I took the pictures toward the East, around 3PM. These are all good questions. I hope it helps someone, wheezer

dpullum wrote:
Wheezer1, did you mention what camera/lens and
2. what CPF brand you used (big previous debates about brand/cost of CPF)
3. Also what time of day did you take the photos?
4. What was the direction of the sun with respect to the direction of the photograph.

Wow, lots of questions in a brief paragraph.

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Sep 11, 2012 22:37:48   #
york17402 Loc: York Pa.
 
Shot with a circular polarizer of some rare flat bottomed clouds here in south eastern Pa.



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Sep 12, 2012 05:46:25   #
dpullum Loc: Tampa Florida
 
Wheezer 1, me- I would have thought the floating fish that MCHUGH mentioned would be great... Back to CPF... in a previous UHH any CPF but the most expensive was considered to be ,,, well does not speak well of the owner!... Test your out using none, min, max while at 90degrees...
I was contending that the quarter wave disperser behind the linear polarizer (which is what makes it a Circular...rather than Linear) is not conducive to "auto focus" on some cameras ..

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Sep 12, 2012 08:09:53   #
MCHUGH Loc: Jacksonville, Texas
 
dpullum wrote:
Wheezer 1, me- I would have thought the floating fish that MCHUGH mentioned would be great... Back to CPF... in a previous UHH any CPF but the most expensive was considered to be ,,, well does not speak well of the owner!... Test your out using none, min, max while at 90degrees...
I was contending that the quarter wave disperser behind the linear polarizer (which is what makes it a Circular...rather than Linear) is not conducive to "auto focus" on some cameras ..


Dpullum the floating fish picture was rather unique looking and really created some interesting comments, but it was definitely unnatural looking. If it was for some scientific use it would probably have been very well accepted because it really showed great detail of what a fish looks like while swimming.

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Sep 12, 2012 08:54:24   #
dpullum Loc: Tampa Florida
 
Humm. Swimming pool and swimmers swimming in the air in an empty pool... the "Photoextemist" www.photoextremist.com/

Beware of this site...it'll mess your mind...

For the most part, a filter is a filter, uncomplicated, makes 6 stars, 8 stars, yellow or green etc, filters UV or for IR visible (you do not want coated for IR discussed the optics in prior UHH on IR citations are contained there), BUT circular polarizing filters are differing story... take a linear and put scotch tap on it and it circularizes. The tape disrupts linear light waves and scatters them in multi-random axis. That 1/4 wave filter is the key to the filter.... phase contrast or other is used for auto-focus... hence perhaps problems for some cameras.. I do not know which or exactly why.. but forgive me the phrase, "I sense it" (not saying what size... use to be full frame, perhasps with age I will endup as a cell phone sensor in my cognition)... Ouch!

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Sep 12, 2012 12:09:19   #
Wheezer1
 
I would like to see that picture of the fish, now I want to try it..I know they say "you get what you pay" and I'm sure it's true with photographic equipment. I'm retired so I try to pick and choose my equipment to match my needs..I spent more for a Sigma 150mm-300mm telephoto lens than I did for my Canon camera and a couple of other inexpensive Canon lenses lens but that's because my first love it astrophotography. These three pictures were taken recently with My Canon and Sigma lens. I posted them a while ago under "Photo Gallery". This has been an interesting and informative thread, thanks for all the comments. Wheezer
dpullum wrote:
Wheezer 1, me- I would have thought the floating fish that MCHUGH mentioned would be great... Back to CPF... in a previous UHH any CPF but the most expensive was considered to be ,,, well does not speak well of the owner!... Test your out using none, min, max while at 90degrees...
I was contending that the quarter wave disperser behind the linear polarizer (which is what makes it a Circular...rather than Linear) is not conducive to "auto focus" on some cameras ..

M13 Globular Cluster and the Moon
M13 Globular Cluster and the Moon...

M42 Nebula
M42 Nebula...

M31 Galaxy
M31 Galaxy...

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Sep 12, 2012 12:15:03   #
Wheezer1
 
York, I like the colors in this picture...People have told me on several occasions that I tend to over saturate the colors, maybe it's my monitor or my old eyes or maybe some times I just like bright colors.

quote=york17402]Shot with a circular polarizer of some rare flat bottomed clouds here in south eastern Pa.[/quote]

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Sep 12, 2012 14:44:32   #
Wheezer1
 
I need to proof read before I click "send" my Sigma is a 150mm-500mm Telephoto..Wheezer

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