Ganzen Tag mit Excel gebacken!
“Alright so I guess I’ll go to bed at 10:00.” “You know, 10:30 won’t kill me” “I guess 2:00 is fine…
SMS können gar nicht schnell genug aus sterben!
This photography video tutorial will show you how to burn and spin steel wool to create super cool long exposure photos of sparks.
When viewing other people’s photographs online, more often than not there’s a way to comment and share your thoughts. While photo-sharing sites seem to have nicer commenters than a site like YouTube, there are still plenty of people who seem intent on putting people down and filling the Interwebs with vitriol. If that’s you, then here’s a video you definitely need to see.
It’s an excerpt from the same book as another awesome video we shared a while back, “What’s obvious to you may be amazing to others.”
This is a tutorial that should really help some of you photographers out there. We will start with a base RAW file from an 8 megapixel low-end Canon digital camera and we will open it with Photoshop and use the Camera Raw editor to make these changes. Learn all about using the Camera RAW editor and what the different sliders do and why/how you can use them to create really bold effects to your photographs.
MTF (Modulation Transfer Function) is one of the measurements that evaluate a lens’ performance; it shows contrast reproducibility of the lens using characteristic spatial frequencies. Many people, when choosing a lens, do not seriously consider what they will be using the lens for, at least not as seriously as this article proposes. Most people simply want a general lens, after looking at several subjective lens evaluations and perhaps even comparing MTF ratings, they finally purchase a lens. However, after examining their photographs, they are surprised to find that they aren’t as sharp as they would’ve expected despite the lens having a relatively good MTF rating. Aside from proper technique, one of the problems is that the lens they purchased may indeed be sharp, but not at the focal length and aperture they tend to use it at. In other words, for their style of photography, the lens is not sharp. This video will briefly describe how to read MTF chart and may help the viewer to choose a right lens for the type of photography.
How-To: Turn Slides and Negatives Into Digital Photos
Preserving 35mm photos on a computer is a great way to keep them safe, and chances are that either you or someone you know has an old box of irreplaceable memories waiting to be scanned. The problem is that an ordinary scanner doesn’t really scan slides or negatives properly. The reason is that slides should be illuminated from behind, while conventional scanners are designed to capture reflected light from a document. You could go out and buy a dedicated film scanner, but there is a much cheaper alternative if you already have a flatbed scanner or scanner/copier attached to your computer. A simple cardboard adapter can be used to capture the light from the scanner and reflect it behind the slide. Once the adapter is in place, you can scan the slide as though it were an ordinary document. A sheet of A4 (8 ½ x 11) thick, silver card stock
Materials
Downloadable template, below
Scissors
Pencil
Ruler
Sticky tape
Download the Template PDFRight click to save the PDF to your desktop. Directions on downloading PDFs.
Step 1: Take a piece of silver card stock and download and print out the paper template on the plain (non-silver) side. Step 2: Cut around this shape with the scissors and fold the triangular wings upright so that the shiny sides of the card stock face each other. Step 3: Now fold the longest part of the rectangle in to touch the edges of the triangles, so that the whole thing resembles an open-bottomed, triangular wedge with the shiny side of the card stock to the inside. Step 4: Tape the corners of the adapter together, and it’s ready to use! To use the adapter, place a slide or negative onto the scanner, and then place the adapter over the top. For the best results, line up one side of the slide with the center of the adapter. Leave the lid of the scanner open. If your scans have an uneven brightness, try adding a thin piece of tissue paper between the slide and the adapter. The tissue will diffuse the light and stop the scanner from seeing the space behind the slide of the slide. Take a preview scan with your favorite image editor and crop the scan to area of the slide. The higher the resolution at which you scan, the more detail you will get. I recommend setting the scanner to at least 1200 DPI. If you are scanning negatives, you need to perform a little bit of additional computer jiggery-pokery to reverse the color of the slides. Most image processing programs will have an ‘invert’ function that will reverse the colors for you, including Microsoft Paint. You might also want to adjust the brightness and contrast of the slides to make them look better on the screen. You will probably notice that there are a few specks of dust on your slides when you scan them in. This is usually unavoidable, but a soft lens brush or a clean makeup brush can help minimize the problem. To remove any persistent specks or scratches, you can use a photo editor with a heal tool. If you don’t have a program that can do this, you can download GIMP or Paint.net for free. This image shows the raw scan on the left, the inverted scan in the middle, and the final image with the scratches and dust removed on the right. The entire process took less than 10 minutes to complete.Directions
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