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Bad Contrast - Polarizer  
User currently offlineBigPhilNYC From United States of America, joined Jan 2002, 4076 posts, RR: 54
Posted (8 years 11 months 5 days 21 hours ago) and read 1721 times:

I got two rejections recently that I wonder about.

Now, if Anet just doesn't allow it, I understand, but I was using a polarizer and took the following photos:

http://www.airliners.net/addphotos/r...CO_738_N76265_EWR4RArr1_091005.jpg

http://www.airliners.net/addphotos/r...ka_738_N546AS_EWR4RArr1_091005.jpg

The sky is the color it is because of the polarizer. The plane itself, I think, is of the exact color and contrast as reality. Personally, I think it should be accepted. The sky happens to be very rich. The sky was extremely harsh that day so I used a polarzer.

Your thoughts?

-Phil


Phil Derner Jr.
16 replies: All unread, jump to last
 
User currently offlineWakeTurbulence From United States of America, joined Apr 2004, 1294 posts, RR: 16
Reply 1, posted (8 years 11 months 5 days 20 hours ago) and read 1711 times:

Hey Phil, looking through those two it seems the contrast between the sky and white of the aircraft is too much. It almost started to hurt my eyes. The white in the CO and especially the AS are too bright. The sky itself looks fine to me. Look forward to meeting you and everyone else at LAX next weekend.
-Matt



Jetwash Images - Feel the Heat!!!
User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 2, posted (8 years 11 months 5 days 20 hours ago) and read 1700 times:

Those pictures look a lot better with curves adjustments to lighten the shadows under the planes.

And the sky is noisy, it needs some noise reduction. Maybe the ISO was too high.


User currently offlineFlyfisher1976 From United States of America, joined Jan 2005, 804 posts, RR: 2
Reply 3, posted (8 years 11 months 5 days 20 hours ago) and read 1688 times:

In the future, I would avoid using the polarizer filter and make adjustments in post-processing if necessary. The colors in these shots just don't look natural.

User currently offlineMartinairYYZ From Canada, joined Nov 2003, 1209 posts, RR: 7
Reply 4, posted (8 years 11 months 5 days 19 hours ago) and read 1682 times:

Quoting BigPhilNYC (Thread starter):
Now, if Anet just doesn't allow it, I understand, but I was using a polarizer and took the following photos

Not allow it? That would go past all rule of photography, and make this site an inelligible bachelor!  Smile

It looks okay, very nice photos, maybe a bit of desaturation would help  Smile



Chelsea Football Club supporter.
User currently offlineBigPhilNYC From United States of America, joined Jan 2002, 4076 posts, RR: 54
Reply 5, posted (8 years 11 months 5 days 19 hours ago) and read 1682 times:

If you took that plane...and added it to the hazy sky that actually existed....it would look like shit. The plane is exactly what it SHOULD look like. The ONLY difference is the rich color of the sky. If I didn'tuse a polarizer, you'd see a crappy hazed out blue that woudl get rejected for bad quality or whatever.


Phil Derner Jr.
User currently offlineHisham From Lebanon, joined Aug 1999, 701 posts, RR: 11
Reply 6, posted (8 years 11 months 5 days 19 hours ago) and read 1675 times:

The sky looks great! I think the badcontrast is for the dark belly of the aircraft not the sky.
The fact that the plane actually looked like that is besides the point.

Hisham.


User currently offlineDehowie From Australia, joined Feb 2004, 1057 posts, RR: 33
Reply 7, posted (8 years 11 months 5 days 18 hours ago) and read 1657 times:

G'day Phil
I really like the deep blue you get with using a Polarizer it is outstanding.
I have a 77mm for my 100-400 and 70-200 and got some excellent results with hazy skies and even on a clear day at really helping bring the blue out in the sky.
It is also excellent at bringing out the underside detail without giving that overexposed look to the top side of the aircraft.

View Large View Medium
Click here for bigger photo!

Photo © Darren Howie


I really like how punchy that Alaska shot looks against that great sky.
Thats what polarizers are about.
Darren



2EOS1DX,EF14.2.8LII,17TS,85/1.2,16-35L,24-70LII,24L,70-200F2.8LII,100-400,300/400/500/800L
User currently offlinePsych From United Kingdom, joined Nov 2004, 3048 posts, RR: 58
Reply 8, posted (8 years 11 months 5 days 13 hours ago) and read 1617 times:
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Hi Phil,

I agree that a polariser can be very helpful in certain circumstances.

I used one in this shot to improve the contrast between the white fuselage and the blue of the sky:

View Large View Medium
Click here for bigger photo!

Photo © Paul Markman


But I think the problem then is to ensure that the darker areas that will be created by the filter (due to the fact it takes 2+ stops off the exposure) are brightened. That is what I see as the problem with these photos - they are, in effect, too dark.

So I would agree with the comments above that the dark undersides need to be brightened.

Take care.

Paul


User currently offlineBigPhilNYC From United States of America, joined Jan 2002, 4076 posts, RR: 54
Reply 9, posted (8 years 11 months 5 days 9 hours ago) and read 1562 times:

So a baddark would have been understanable. Why the badcontrast?

Thanks for the input, guys. Just wanted to know also that I wasn't alone in the polarizer world.

These shots were underexposed -1.3

I guess I needed more.

-Phil



Phil Derner Jr.
User currently offlineHisham From Lebanon, joined Aug 1999, 701 posts, RR: 11
Reply 10, posted (8 years 11 months 5 days 6 hours ago) and read 1523 times:

Baddark means the whole photo is uniformly underexposed. In this case the upper fuselage is correctly exposed. Adding more light may have resulted in overexposing the upper fuselage. You were dealing with a contrasty situation that's difficult to meter. What's the contrast setting on your 10D? I usually keep it at zero.

Hisham.


User currently offlineJavibi From Spain, joined Oct 2004, 1371 posts, RR: 41
Reply 11, posted (8 years 11 months 5 days 5 hours ago) and read 1507 times:

Quoting BigPhilNYC (Reply 9):
Why the badcontrast?

Hi Phil! I agree with the first posts, looks too contrasty in my eyes, but I think you can solve that with a different editing and still keep the sky looking good.

I use a circular polarizer with mixed results; I like the way I can pump up the contrast in a lot of situations (not only sky shots, try using it so that the runway appears real dark) but I think quality and sharpness suffers, sometimes so much that it would ruin the shot.

Got several shots from MEX right now in the queue, all of them shot with my polarizer, I hope they make the cut  Smile

Cheers

j



"Be prepared to engage in constructive debate". Are YOU prepared?
User currently offlineDLKAPA From , joined Dec 1969, posts, RR:
Reply 12, posted (8 years 11 months 5 days ago) and read 1457 times:

Phil,

Those shots are nice. I always like the deep blue sky tones.


User currently offlineNorfolkjohn From United Kingdom, joined Jan 2005, 251 posts, RR: 7
Reply 13, posted (8 years 11 months 5 days ago) and read 1458 times:

Hi,

The actual reason for rejection of each shot has not been mentioned although the general assumption seems to be contrast and or dark. I do think the level of contrast is excessive in both shots but I have to say that I would have though the Alaska 737 would have got NOA_Quality. Apart from the contrast issue, what are those white marks below the rear fuselage ? Not to mention the ghost of a winglet between the wing tip and vertical tail fin. It looks to me like some dust spot removal may have gone wrong. Looks even more peculiar if you equalize the shot. I would also say that this shot is slightly over sharpened - jaggies on tail, winglet and top of fuselage.

If you are looking to re-edit this shot I think there are more areas to be looked at than just contrast.

Good luck.

John



One thorn of experience is worth a whole wilderness of warning.
User currently offlineBigPhilNYC From United States of America, joined Jan 2002, 4076 posts, RR: 54
Reply 14, posted (8 years 11 months 4 days 21 hours ago) and read 1443 times:

Good point John.

I had a lot of trouble with reflections as well.

I had my UV Filter under the polarizer, and it seems as though light was bouncing aroudn creating strange glare in several of my shots. I didn't even notice it in this one.

The rejection stands as valid.

-Phil



Phil Derner Jr.
User currently offlineEadster From Australia, joined Jan 2005, 2216 posts, RR: 14
Reply 15, posted (8 years 11 months 4 days 20 hours ago) and read 1426 times:

Quoting DLKAPA (Reply 12):
Phil,

Those shots are nice. I always like the deep blue sky tones.

Me too. Clearly the screeners don't like what we like!


User currently offlineJakbar From United States of America, joined Oct 2003, 442 posts, RR: 24
Reply 16, posted (8 years 11 months 4 days 4 hours ago) and read 1359 times:

Quoting BigPhilNYC (Reply 5):
If you took that plane...and added it to the hazy sky that actually existed....it would look like shit.

Phil, I was standing right next to you and wasn't using a polarizer. I simply shot RAW and edited as needed in Photoshop. I don't think my results are quite on the level of "shit".  Smile


View Large View Medium
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Photo © Josh Akbar - NYCAviation
View Large View Medium
Click here for bigger photo!

Photo © Josh Akbar - NYCAviation


View Large View Medium
Click here for bigger photo!

Photo © Josh Akbar - NYCAviation



Josh


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