I would recommend some further reading on this. All this tells you is that the manufacturing process for this lens is good enough to support camera modules with up to the number of MP for which the lens is rated for. And a 10MP lens will support a camera with a resolution up to 10MP. For instance, a 3MP lens should support a camera with up to 3MP in resolution. The more MP a digital camera sensor has, the more obvious these imperfections are.įor this reason, manufacturers of lenses will normally specify how many MP the lens supports. Because they have a much bigger zoom capability any imperfections in the lense are immediately obvious. They have a much wider angle of view and they can cover several times the area that an old analog video camera used to be able to cover.įor that reason, these cameras are much more demanding in regard to the camera lens they support. It turns out that digital video cameras are much powerful than their old equivalent analog video cameras.
Time lapse tool how to increase the time free#
Just kidding… whatever I say next, take it with a pinch of salt, and please feel free to correct me if you think I said something wrong. That is quite a good question to ask and the same question I had when writing this article.įirst a disclaimer, I am no expert in photography, but after reading some articles on the web and on StackOverflow, I am going to give you my “expert” opinion.
Why does the camera lens state the number of MP? Is it just a lens, nothing digital about it, right? So why state the number of MP? And you will see why I was so keen on this lense. Color Correction.The 16mm 10MP telephoto lens was the one I went with, as I wanted to have the extra zoom capability. The dust is gone and it will not look washed out as if you use the stamp tool to do the same!ītw: If the spots are still a little dark, it helps to increase the brightness of the upper layer a few percentages (Filter.
Set the "Radius" value of the filter to maybe 20-40 and the threshold to 0. The open the Effects menu, select the Noise & Grain menu and there the Dust & Scratches filter. This value says (at least if I understood correctly.) how sharp the mask will be: Change the values of "Mask Feathers" to maybe 5 - 10 Pixels. In the upper layer, two mask have appeared:īy clicking on the little arrow, you can open their menues. Using this tool, mark all dust spots in your image: Then click on the "Ellipse Tool" in the tool bar (if the ellipse tool is not there, just alt-click onto the corresponding symbol until it appears): Copy your ground layer by clicking on it and pressing ctrl-c ctrl-v: To do so, in AE one uses Masks:įirst import your images into a new composition. As in Photoshop, you do not want to apply the filter to the whole frame, but only where the dust spots are. Shooting on Sahara's dunes in Morocco's desert, I caught a large amount of sand grains in my camera (without actually changing the lense at any time, the sand just came in.), so I had to find an efficient way to remove the resulting dust spots.īeing an Adobe product, After Effects comes with a few filters that are also included in Photoshop, luckily also with the Dust & Scratches filter. Now if you have After Effects (I use AE CS4), you can skip this photoshop step and do it directly in After Effects. It's been a while since I wrote a tutorial how to remove dust spots with Photoshop, see here.