Digital Photography Effects

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Is the quality of photos in digital photography depends on memory card quality?

Effect of memory card on digital photography

No. The type of memory card has no effect at all on photo quality.

The factors that determine photo quality for digital photography are (in no particular order):

1. Sensor qualilty. The quality and type of the image sensor that captures the light of the image being photographed are crucial to the quality of the recorded image. In general, the larger the sensor and the more pixels it has, the better the image, but there are many, many variables.

2. Lens quality. The image on the sensor is only as good as the lens that projects it there. Lens quality is just as important to image quality as the sensor. You need a good sensor AND a good lens to get the best image quality.

3. Software and electronics. Most digital cameras heavily manipulate the raw signals from the image sensor in order to produce a final image to be recorded on the memory card. The quality of the electronics and the quality of the software that manipulates the image make a big difference in the quality of the final image. Neither of these can compensate for a bad lens or a bad sensor, but both can mess up a good image if they are of poor quality.

4. Compression. The more an image is compressed, the lower its quality will be. This is mathematically inevitable. Most cameras let you select various levels of compression in order to compromise between quality and file size (the better the quality, the larger the image file will be), and many of the better cameras let you record images with no compression or special processing at all ("raw" mode), so that you can process them later in a program like Photoshop to extract as much quality as possible from the original. Raw images take up a tremendous amount of space on the memory card.

The only influence the memory card has is on the number of photos that you can fit on the card, and that depends on the card's capacity. Sometimes a very fast card is useful if you want to take photos in rapid succession.

Digital MultiCam Reel EFX Digital Camera Effects


digital photography effects5
digital photography effects5

Digital Photography Effects

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Digital Photography Tricks - Understand Resolution To Easily Improve Your Printed Photographs!

With Digital Photography, you can have much more influence on the final outcome than was possible when film was the only option. Back then, you concentrated on the photo, and the developing lab did the rest. Nowadays, it is not too difficult for the photographer to take a few easy steps that can have a positive effect on the completed printed photograph. Resolution is key, and the digital photography tricks below will help you understand how to apply this correctly, using Adobe Photoshop or similar post-production application.

Digital pictures are made up of millions of tiny squares, known as pixels. How many pixels an image has determines the resolution, and therefore the quality, of the picture. A typical 6 megapixel camera will take a shot of 3000 pixels by 2000 (multiply the two, and you reach the 6MP figure). Knowing this, we can now turn an image into a small or large print, depending on how tightly, or loosely, we spread the pixels out. For example, if we were to place 300 pixels into one linear inch, our final image would be 10 inches wide, by 6.66 inches tall.

With your chosen photograph open in Photoshop, for example, its pixel dimensions can be found by selecting the "Image" button and choosing "Resize" and "Image Size" from the dropdown. Once you know the pixel dimensions of your image you simply divide the width and height (both shown in the "Pixels Dimension" box) by the image resolution (i.e. the pixels per inch - ppi - are shown in the "Document Size" box). This tells you how big your image will be. Typing relevant figures in the boxes can alter all pixel Dimensions and Document Size values.

So, when applying these digital photography tricks, how do you know which ppi figure to select? Well, standards have been established, with the accepted ppi for photographs in the publishing world being 300ppi (high-quality publishing and professional work). At home, a photo quality inkjet printer will give excellent print quality at 240ppi. For a picture to be viewed from a yard or more (maybe a framed wall print) even 150ppi will suffice. By the way, if you are using an image purely for use on a computer screen, or the web, just a low resolution of 72ppi is required, because of the way screens behave compared to actual prints.

In summary, you can see that print size does not mean much until you have the ppi figure to go with it. For example, by simply altering the spread of pixels, a 7 inch by 5 inch print can be created from any digital image. Therefore, if you need a 7in by 5in print at 240 ppi, you know you require 1680 (7 x 240) by 1200 (5 x 240) pixels to produce it. You can play around with the values in the "Document Size" box in Photoshop to see the effect it has. Apply these simple digital photography tricks next time you need to print images, and you will ensure they are of the desired quality before you click the "print" button.

About the Author

If you would like to find out how simple it is to apply a few simple
digital photography tricks
that will greatly enhance your photographs, check out
http://www.photographycourseonline.info
for further information.

Digital Photography 1 on 1: Episode 65: Green Screen: Adorama Photography TV


digital photography effects5
digital photography effects5
digital photography effects5