This was achieved by rotating the CPL. My concern is shouldn't the blue be uniform instead of being patchy?? Is it something wrong with the CPL?
Polarizer is not effective over the entire sky. When you shoot in ultra wide angle you include a wide area of the sky and the polarizer can only darken part if it.
In the shot above, a graduated ND is probably a better filter to use. Alternatively, bracket the exposures and then blend the shots in post processing.
First of all, why did you want to use a polarizer? To darken the sky?
If so, then as I have explained, a polarizer can only darken part of the sky...not the entire sky. That's why the blue is darker at the area where the polarizer is most effective and brighter where the polarizer is not as effective.
Do a thumbs up gesture with you hand and point your thumb at the sun. Then open and close your fingers...the parts of the sky that your fingers sweep across is where a polarizer is most effective in darkening (when the angle is right)...because most of the scattered light from that direction is polarized, and can be blocked by the polarizer. Light coming from other parts of the sky is not polarized, so a polarizer only gives the same amount of dimming regardless of the rotation angle.
There is nothing wrong with your polarizer...but I think I can spot some sensor dust...
Yes I am aware of how CPL is to be angled with the sun and i wanted to darken the sky. I am refering to the patch where is blue... is it supposed to be that patchy? I thought it should be a gradual deepening of the blue?
Sorry, hijack the thread . so is GND the solution? any other method or solution if I were to use wide angle, say 12-24? thanks in advance.
Sorry for misunderstanding your question...If you are referring then to the banding in the area where the brighter sky transitions into the darker blue, then as icebox has explained, it could be due to monitor not able to display the very gradual transition.
Also, JPEG compression can create that effect...if you lower the quality setting.
No worries. But but I use the highest quality... so in your opinion, this pic is ok? in terms of its blue hues?
Ok... thanks for your comments. At least some learning pts, CPL is working fine and CPLs doesnt work well with ultrawides
Ahh.... thanks. So its a common prob... so does that mean using a slim CPL will help avoid this uneven banding?
Ahh.... thanks. So its a common prob... so does that mean using a slim CPL will help avoid this uneven banding?