Napioa - Wind Origins

Napioa - Wind Origins
by octopus                

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-1

Height (px) / Height (inches) = PPI to use.. When working with a design for print but you want to proof it on the web then it is best to start with a 300ppi and convert to cmyk before exporting the final deliverable.


1

This thread appeared when I searched whether sensors lose their sensitivity . . so FWIW my lovely 10 year old high-end compact camera (CCD sensor) still shoots correctly exposed pictures but then quotes abnormal f stop/shutter speed combinations for the fixed ISO in the EXIF info. I've checked back on my earlier pictures and then the quoted exposure ...


2

Ah, well you answered yourself, but changed your requirements. "No loss of quality" and "no loss of quality to the naked eye" are vastly different with images. Also, PNGcrush and opt-jpg work completely differently; only noting this because you mentioned PNGcrush in your OP. PNGcrush only optimizes metadata about the image, not the image itself. This is ...


1

Testing optical performance of lenses requires knowledge and an optical laboratory. Subjectively, looking at the results obtained via the images you have captured, which may raise your index of suspicion about the performance of a lens so tested; may only point you in the general direction of disappointment with performance. In general terms, it is usually ...


7

You applied surplus of sharpening. Sharpening means for a computer to find a lightness transition and make the dark part of it darker and the lighter part lighter. If you apply disastrous amount of sharpening (as you clearly did) you are guaranteed to get those artifacts - the ligher part will become clipped white and the darker part will become clipped ...


2

Cleaning the lens is important, but it looks to me like your issue is compression artifacts. Check your camera settings to see if you can increase the quality of images saved or shoot in RAW.


0

Would stop down the aperture help? If the type of chromatic aberration you're talking about is longitudinal (front-to-back) and showing up as purple fringe, then stopping down will absolutely help reduce or eliminate the issue. Also controlling exposure so there are no blown highlights. Purple fringing is especially prominent when using a fast lens ...


0

Avoid high contrast, especially bright backlit subjects If you have high contrast, keep it away from the edges. CA is worse around the perimeter of an image. Always look at the perimeter of an image in post — you'll find it more than you think. Avoid shooting a zoom at either the closest or furthest focal length. These tend to multiply the effect as the ...


-1

You can achieve your solution by just following the 4 basic steps, Find something you want to take a picture of make sure your hands are steady and then take the picture. Now you must take the picture off of the camera and put it on a computer. Hopefully you know how to do this, or else there is not much that I will be able to do for you. This step is ...



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