October 26, 2008

Sharpening Up Your Photos

I’ve been using Adobe Photoshop for the better part of 15 years. When I was a beginner, Photoshop was like a beautiful girl who can’t get a date, because everyone is too intimidated to talk to her. I really wanted to try it, but I figured it was just too sophisticated and I’d strike out. Sound familiar?

Well, let’s work on boosting your confidence then! You see, Photoshop has an amazing set of out-of-the-package filters that will perform outstanding graphic conversions without you having to break a sweat. Today, I’m going to introduce you to Photoshop’s High Pass Filter. It's a must for anyone who wants to sharpen the look of any digital photo. Let's give it a try!

Let’s start with a digital photo that wasn’t shot with a high-end camera. When I say “high-end,” what I mean is a camera with a high megapixel rating. Most consumer digital cameras available today run anywhere from three megapixels to eight megapixels. The higher the number, the cleaner the shot. (You can read this tip for more information on that).

I’ll be using this photo of my dog, Pepper:

That photo was shot with my cell phone camera (not known for their clarity), so it’s a perfect example of how to take a “fuzzy” photo and sharpen it up almost instantly. You’re going to love this!

Start by opening your image in Photoshop.

As you may know, Photoshop allows you to work in layers, so you can make all your corrections on a new layer that’s separate from your original photo. How cool is that?!

Across the top of your screen in Photoshop, you’ll see a listing for “Windows.” That tells Photoshop what you want to see in your workspace and what you don’t. Click on the Windows tab and then scroll down through the list to Layers.

Click on Layers and a new window will open that shows you all the layers of your file.

So, now we’ll create a duplicate layer of Pepper by choosing Layer across the top and selecting Duplicate Layer. What you’ll end up with is an exact copy of your photo (see picture below):

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Your duplicate layer will be called Background Copy. That’s the one you’re going to apply the High Pass Filter to.

So, here’s the deal! Along the top of the page, select Filter and then scroll down to Other. Clicking on Other will reveal five more choices. Pick High Pass. At this point, the photo will turn gray, but don’t panic! Remember, we’re working on a new safe layer and your original image is underneath it.

A dialogue box will then appear. You can adjust the effect more or less to your liking when you have time to experiment, but for now, go ahead and click OK.

What the High Pass Filter does, essentially, is pay closer attention to the details of an image and it ignores the rest. It’s almost like throwing a piece of tracing paper over a picture and tracing the outline.

So, where’s your big result? Well, here we go!

In the Layers window, right above the little icons on your photo and its “copy,” you’ll see the word “Normal” with an arrow next to it. Click on the arrow and hold it to reveal a list of layer styles for you to choose from. Scroll down through the list and choose Overlay.

When you let go of your mouse, watch your photo!

The High Pass Filter has pumped up the detail areas, taking Pepper from “fuzzy” to “fantastic!”

Now, if you'd like, you can go to the little “eyeball” located next to your Background Copy image.

Clicking on the eyeball over and over will turn the High Pass Filter on and off so that you can see the before and after!

Pepper never looked so good. Try this with a photo of your best friend today!

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October 7, 2008

Choosing the Right Lens

Lenses are very sacred when it comes to digital photography. Without a proper lens, no picture you take will be worth anything. That's why choosing a lens is so important. There are two kinds of lenses: prime and zoom. Most compact cameras have zoom lenses, whereas most professional cameras have prime lenses. The difference between them is rather easy to understand. Prime lenses have one focal length and can be used for specialist photography. On the other hand, zoom lenses are great for general photography, because they have a wide range of focal lengths.

Of course, there are other tangible benefits from using both types of lenses. Like any field, both have their merits and demerits. Below are a few guidelines you can use when choosing the right lens for your photography!

You may want to think about some of the following features when choosing a prime lens:

1.) Superior images: Prime lenses generally offer high quality pictures, because they are largely made for professionals who want to be perfect in their chosen field. What they offer is priceless: clean, crisp and precise shots.

2.) Economical: There are two sides to prime lenses. While there's the nifty 50mm variety that comes cheap, there are others that come with a higher price. Generally though, prime lenses are cheaper, because unlike a zoom lens, they don’t have too many moving parts.

3.) Lightweight: Since prime lenses lack complex construction, they are smaller and lighter as well.

4.) Faster: If you're constantly taking pictures in low light conditions, prime lenses offer a great way to capture your subjects faster (in terms of aperture). Both the 85mm and 50mm lenses are fast and allow you to shoot without a flash.

Now, here are some features to consider when choosing a zoom lens:

1.) Portable: Prime lenses might be lightweight, but zoom lenses are lighter in a different context. If you have to carry a range of prime lenses for different focal lengths to suit different kinds of photography, you might as well just carry one zoom lens that can deliver all of those angles at once.

2.) Dust: If you use several primes, you will have to change the lenses more frequently than with zooms. Every time you change the lens, you're running the risk of letting where to buy cheap propecia dust surround the body and sensors.

3.) Affordable: It's true that some zoom lenses are more expensive than prime lenses, but you have to look at the cost benefits. If you had to buy three prime lenses to meet your photography needs, the sum total would come up to as much or even more than what one zoom lens would cost.

4.) Flexible: This is the best part of a zoom lens. You don’t need to constantly change your prime lenses to shoot at different focal lengths. You can simply adjust the zoom and you're ready. That's very ideal for taking surprise pictures or quick shots where you don’t have time to change your lenses. It's also great when you have to take close-up pictures from a distance.

Here are a few additional options for lenses:

1.) If you have a Canon DSLR, a couple of 50mm lenses would be great for low light conditions. In addition, you could buy a 100mm f/2.8 Macro lens. It's not only good for macro shooting, but it's also great for portraits. If you're going to buy a zoom lens, go for one or more of these: 17-40mm, 24-105mm or a 70-200mm.

2.) You could go for a 70-200mm zoom, because the focal range is too big to cover with several primes. In addition, you could buy a 28mm and 50mm prime lens for lower focal lengths.

3.) For general photography, it's best to go with a 24-105mm mounted lens. Or, if you want to get more creative, you may want to consider a 50mm prime lens.

4.) For those of you who are beginners, a basic zoom lens or a cheap 50mm prime will do. You can then take it from there.

Since there are advantages to both prime and zoom lenses, the best way to make the most of them is to own one of each and use them accordingly. That way, you're not deprived in either direction. It really all just depends on what kind of photography you do and how passionate you are about your work. Prime lenses are definitely faster, but zoom lenses are more versatile, so you just have to figure out what will work the best for you. Happy lens shopping!

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October 5, 2008

Working with Photos using IrfanView

Techtips - 186

By Scott Nesbitt – Sunday, September 21, 2008

TT186 - PullQuoteManipulating your photos takes a bit of patience and the right software. But what software is right for you? If you’re the average person with a cheap digital camera, then something like Photoshop will be overkill for your needs.

Sometimes, you find that little piece of software that packs a lot into a small space. When it comes to working with graphics – and photos – that software is IrfanView. While billed as an image viewer, IrfanView has some pretty good tools for working with photos.

 

What is IrfanView?

IrfanView started life as a fast, flexible, and compact Windows graphics viewer. It did that job remarkably well – IrfanView can display a couple of dozen common (and not so common) image formats. As IrfanView got older, its developer added a number of useful features to it.

One of these features is support for plugins which extend IrfanView’s capabilities. These additional capabilities include the ability to view even more image formats, to transfer files using FTP, burn slideshows to a CD, play various media files, and even use some Photoshop plugins.

Thanks to the array of plugins, IrfanView is one of the best image applications around. And it does a good job at basic photo manipulation, too.

 

Getting IrfanView

That’s pretty simple. Just go to the IrfanView Web site and download the installer. Once it’s on your hard drive, it only takes a few seconds – the installer weighs in at just over a megabyte – double-click the installer and follow the prompts. proscar propecia The installation is lightening fast.

Then, download the plugins. There are four archives available; I’d suggest getting them all. To install them, just extract the archives the IrfanView plugins folder: C:\Program Files\IrfanView\Plugins. And you’re ready to go.

Working with photos

While IrfanView’s selection of image editing tools is limited when compared to Photoshop or Paint Shop Pro, you’ll find most (if not all) of the functions that you need including:

  • Cropping

  • Rotating and straightening

  • Working with thumbnails and creating Web albums

  • Enhancing photos with effects

Cropping photos

There’s always a photo that contains something or someone that you don’t want in it. Or, you’ve scanned a picture and there’s too much of a border. Cropping enables you to cut out those elements, and still have a decent photo.

Load up a photo in IrfanView by selecting File > Open and then choosing a photo that’s on your hard drive. Then, use your mouse to select the portion of the photo that you want to keep. From there, select Edit > Crop selection. The offending bits vanish. Don’t forget to save your changes, though.

The only drawback to this function is that you can only select a square. You can’t do fancy, freehand selections.

 

Resizing a photo

If you’ve ever downloaded a photo off of a digital camera, you’ll have probably noticed that it’s quite large. Sometimes, you want your photo to be small. When? For example, when you want to send it by email, or post it to your family Web site, or transfer it to your cell phone or PDA.

To shrink a photo, select Image > Resize/Resample. You have a number of options for resizing your photos.

First, you can change the height and width by specifying a particular number of pixels or a percentage of the photo’s original size. If you go this route (and it’s the easiest way to do the job), the make sure that the Preserve aspect ratio option is checked. When you change one dimension, that option ensures that the other dimension is proportionally changed so that the image doesn’t appear distorted.

If you plan to use the photo as desktop wallpaper, you can select one of a dozen standard screen resolutions. The available resolutions range (measured in pixels) from 640×480 to 1920×1080.

Finally, you can shrink the photo by 50% by clicking the Half button.

Rotating and straightening a photo

Just as some photos contain superfluous detail that you want to cut out, sometimes, a photo is a bit off kilter. Or it comes to you rotated in a strange way; you either have to twist your head or your monitor around to view it properly.

If you just need to flip an image around, select Image > Rotate Left or Image > Rotate Right. This will turn the photo at 90 degree increments.

On the other hand, if you need finer control then select Image > Custom/Fine Rotation. This enables you to rotate the image at an angle ranging from -360 degrees to 360 degrees. You can make the rotation as fine as 0.01 degrees.

Working with thumbnails and creating Web albums

Most of use have folders full of images on our hard drives. It can be difficult to open a particular file in IrfanView if you don’t remember the exact name of a file. Thumbnails, little snapshots of those images, help.

To view thumbnails, select File > Thumbnails. The thumbnail viewer opens. From there, navigate to the folder that contains the images that you want to view. The thumbnails appear in the window. Just double-click on an image to open it in an IrfanView window for editing.

So, what can you do with thumbnails? How about turn them into an album that you can post on the Web. To do that, highlight the images that you want to add to the album and then select File > Save selected files as HTML. IrfanView will copy the original photos, the thumbnails, and a set of Web pages to a directory on your hard drive (by default, C:\temp). To view the album, just open the file Thumbnails.html in a Web browser.

 

Enhancing photos with effects

Remember when I recommended that you download and install all of IrfanView’s plugins? Well, I had a good reason for that. And not just to fill up your hard drive with useless software. Some of the plugins can add interesting effects to your photographs.

To use the filters, select Image > Effects > Effects Browser. IrfanView has 36 effects that range from the useful to the whimsical to some that will leave you scratching your head wondering why they exist.

Some of the more useful effects are Blur (which lets you soften a photo), Sharpen (which eliminates some distortion), Sepia (to give your photos an old-fashioned feel), and Oil Paint (which makes a photo look like an oil painting).

You have fine control with these effects. The Effects Browser window includes a slider that enables you to control the degree to which the effect is applied to the photo. There’s also a real time preview that lets you see the result of applying the effect before you commit to it. When you’re ready, just click Apply to original image.

 

Other features

If all that wasn’t enough, IrfanView has a number of other features too. It does a decent job of reducing red eye, you can adjust colors or convert a photo to grayscale, and even take snapshot of your screen. IrfanView also has some very basic paint functions. You can draw using a paintbrush; erase bits of an image; add arrows, lines, or text; and even fill areas with color. Not bad for such a little program.

One function that I’ve found useful is IrfanView’s ability to convert images in other formats. You can save individual images in different formats, or do the job in bulk. The process is fast, and it generally produces good results.

 

Conclusion

After spending a little while with IrfanView, you’ll discover that it’s more than just an image viewer. It’s also a great tool for manipulating photos, or just about any other image. While you won’t be able to do a lot of detailed photo cleanup with IrfanView, it’s more than up to the task of doing all the basic photo editing that you need.

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September 30, 2008

Slowing Down the Shutter Speed

Slower shutter speeds can make or break a picture. More importantly, if you master it, you can make a picture look like a million bucks! propecia young men Below are three ways to fine tune your slow shutter techniques. Let's check them out!

Step 1: Let There Be Light

Light plays an important part in brightening up your pictures in ways you would never have imagined. But what normally happens is we often limit ourselves to the normal lighting we're used to seeing. Therefore, the best advice is to set your camera down on a tripod for blur-free photos and then set the camera at a slow shutter speed so that you can manually get some movement on the lights in your scene. For that, you need to experiment with flashlights, rope lights, candles, torches, reading lights or any light source you have access to. One example is getting your subject to sit perfectly still in a completely dark room. Set the shutter as close as possible to the time it would take you to walk around their chair holding a candle (approximately eight seconds). That way, you light their face entirely by candlelight. Also, if you move too quickly around them, you'll be able to capture the floating flame. Cool, huh?!

Step 2: Capture Motion

Sometimes it’s good to be off-focus and introduce a little bit of blur. It's particularly great if you're trying to capture motion blur. A sports scene or any action scene will benefit the most from motion blur. All you need to do is use a shutter speed slow enough to get the movement of the subject (their head, hands, feet or something they're holding). Of course, you may want to use a tripod for that step. Also, in case you forget to capture the motion blur, Photoshop has a filter called Motion Blur, so you can recreate the effect if you missed it while taking the photograph.

Step 3: Turning Night into Day

Yes, that can be achieved on a full moon night. All you have to do is pick a place you like the most. It could be a beach, a mountain top or tower with great aerial views of the area. Or, it could even be a busy market place. Not only do you have the moonlight to compensate for lack of lighting, but you also have a slower shutter speed to let more light into your camera. The result? Almost daylight photos that capture a lot more detail than the usual night shot. If you're taking a photo by the beach, the colors will appear more vibrant. Also, notice the dreamy look it gives to the moving water, rendering the waves almost like low lying clouds.

All of that can be done with the power of a slow shutter speed. Who knew?!

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Cleaning Your Camera

Below are a few tips you can use to get your digital camera squeaky clean. Let's check them out!

Lenses

Basic lens cleaning tools are a blower, a microfiber cloth and lens cleaning fluid (such as Zeiss). Try to blast dust off the lens with the blower or canned air. Finger prints can be removed with a circular wipe of the microfiber cloth. Persistent dirt should be removed with lens cleaning fluid as well. Always drip the fluid onto the cloth and then wipe the lens. Don't ever put the fluid directly on the lens.

SLR Mirrors

Don't even think about cleaning the mirror on your SLR camera. You could use a handheld blower to remove any dust particles, but canned air is too powerful. Technicians clean mirrors with some kind of special fluid and they often do it for free at camera clinics run by shops or conventions. Mirrors have very fragile surfaces and you shouldn't even think about cleaning them with a standard lens cleaning solution or cloth.

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Modern TTL flash systems have numerous contacts and if you don't clean them every now and then with a pencil eraser or something similar, you may end up with several intermittent failures.

Camera Body Sensor

One of the great things about digital SLRs is you can change the lenses as necessary for different projects. However, during those lens changes, there is a risk of dust falling "onto the sensor." In fact, the CMOS or CCD sensor is covered by a color filter or a clear glass plate, so the dust actually falls on the sensor's covering. Nonetheless, you want to be careful and non-aggressive, because if anything near the sensor is scratched, the camera will have to go in for professional service.

Now's the time to get out the owner's manual for your camera. Make sure the battery is fully charged and then follow the instructions to flip up the mirror for the "sensor cleaning mode." If you can't dislodge dust using a simple hand-squeezed blower, consider visiting a camera repair shop.

Camera Body Exterior

Camera and lens bodies are fairly well sealed against dust and moisture, so you don't really ever have to clean the exteriors of your equipment. On the other hand, if you don't want the dirt on the camera body to work its way into your camera bag and onto an optical surface, it's probably worth wiping off the body with a soft cloth.

Just a few things to think about. Happy cleaning!

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