Do you wear a baseball hat when it’s sunny? See people who do? Do you wonder why people wear them? A lot of people wear baseball hats to shade their eyes from the sun. So what does this have to do with photography? Since photography is all about light, you want to make sure the light hitting your lens is the light you want.

What is this extra plastic in the box?

So you got some piece of plastic ring thing with your lens and you’re not sure what it’s for. Well, that’s your lens hood and it serves a few uses. This post will cover only one of the uses, reducing flare and contrast loss.

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Why, Contrast-loss

The front of your lens is susceptible tadora 20 cialis to stray light which may cause your photo to have dull colors. A lens hoods serve as a circular shade to block that light. Sometimes the buycialisonline-topstore.com hood isn’t long enough and some lights peek through and do affect your photo.

Below

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http://buycialisonline-topstore.com/ are two photos taken seconds apart. One with the lens hood in place and the other without. Image 1 has a sort of lighter tint and some blueing above the book. Image 2 has the lens hood in place and stopped the light from hitting front of the lens. This is an example of contrast loss.

Image 1 - No lens hood

To create this minor contrast loss, I aimed a flashlight straight at the front of the lens above and in front the camera as seen in Image 3.

Image 3 - Camera and Flashlight

Image 4 below shows extensive contrast loss outside due to the sun hitting the front of the lens.

Image 4 - Contrast loss due to the sun

Why, Flare

While outside on a bright sunny day it’s very easy to get flare from the sun (in addition to loosing contrast). Image 5 shows flare from the sun in the bottom left of the photo. cialis australia online shopping Sometimes this type of flare desired. What are your thoughts?

Image 5 - Sun Flare

More

In addition to flare prevention, the lens hood carries additional duties which will be explained in another post.

What’s wrong

You have some guests over and want to take some snap shots. You see a friend sitting in a chair and quickly take a shot. Wait! Why is there this dark arch at the bottom of my photo? Is my camera going bad?

Dark arc at bottom

Image 1 - Dark arc at bottom

The Problem

The dark area at the bottom of the photo is a shadow of the lens (or lens hood) from the on-board flash.

Image 2 - D80 with wide angle lens and hood

Image 2 is the actual set up that took Image 1 second before.

Solution

There are a few solutions to who is the woman in the viagra commercial fix the shadows left by lenses.

  • Don’t shoot so wide – Zoom in a little. Maybe you need to shoot so wide, but maybe you don’t.
  • Remove lens hood – Since you are probably indoors, a lens hood might be needed. I always use a lens hood, even indoors, as additional level of protection of the front glass.
  • Use a hot shoe flash – an inexpensive flash like the Nikon SB-600 is a great addition to any kit. This would not only lift the flash bulb to be higher (great for reducing red-eye), but allows you buy cialis online to bounce the flash off ceiling and walls.
  • Don’t use the on-board flash – Maybe you don’t need it. turkish viagra If you’re camera is producing good high ISO images, try that if the shadows bother you.

Anecdote : I used the Nikon 50mm 1.8D lens for Image 2. EXIF data below:

Device: Nikon D700
Lens: 50mm F/1.8D
Focal Length: 50mm
Focus Mode: AF-S
AF-Area Mode: Single
Aperture: F/8
Shutter Speed: 1/60s
Exposure Mode: Aperture Priority

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Exposure Comp.: 0EV
Metering: Matrix
ISO Sensitivity: Auto (ISO 2200)
Flash
Flash Sync Mode: Front Curtain
Flash Mode: Optional, TTL
Flash Exposure

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Comp.: 0EV
Advanced Operations: Bounce Flash
White Balance: Auto, 0, 0
High ISO NR: ON (Normal)

So, everyone recommended the 50mm f/1.8 lens because the best way to take cialis they said this lens is “the best lens and it’s cheap!”. You got the lens and now you are wondering what they were thinking. “This lens in horrible. How is this supposed to be a ‘low light lens’ when all my photos are blurry?” you buy viagra online prescription ask http://buyviagraonline-rxstore.com/ yourself.

Well, I hope to educate you on how best to use this lens and other lenses that have similar characteristics.

What is the 50mm f/1.8?

The 50mm f/1.8 (or its ‘faster‘ sibling, the f/1.4 ) are prime lenses that have been made for a standard in photography for many years and will probably be around for a long time. The term “prime” means it’s not a zoom lens. The lens’ focal length does not change. To “zoom” in and out with this lens, you must physically move forwards or backwards, otherwise known as “sneaker zoom”.

For many years, prime lenses have been of superior image quality (IQ) than their co-habitat zoom lens. This has been true until the last 5 or so years, when zoom IQ has greatly increased. These zoom lenses, such as the Nikon 24-70mm 2.8G, may have caught with the IQ of primes, but nothing can touch the small size and fast ’speed’ of prime lenses.

Why use the 50mm f/1.8?

When a lens is referred to as a “fast” lens, they are talking about the large aperture of the lens. The large aperture allows more light to enter the front of the lens and then enter the viewfinder / sensor. Since there is more light, the shutter speed will be faster. Hence, a fast lens.

As a fast lens, the 50mm is great for low light. Your friends were right about that… but there is some compromising you need to do with a “low light lens”. This is where the problem lies.

Problem with using the 50 mm lens in low light.

When you understand the problem and know how to control it, this problem turns into a feature and this feature will help you enhance your photos.

So now you know that the large aperture of the 50mm f/1.8 (or f/1.4) lens is great for low light situations. Fantastic! But why are you still getting blurry photos when the shutter is faster? This is because the larger aperture of fast lenses keep less in focus when shooting http://otcviagra-norxpharmacy.com/ at the larger aperture (i.e. f/1.8). You know those creative photos where the background buy viagra (or foreground) is out of focus (OOF)? This is why… one of the few contributing factors that control what is called Depth of Field (DOF). We’ll keep the other factors for another post.

Solution

So now you’re indoors with your low can you take viagra and cialis together light lens and taking photos of children running around at f/1.8 because, you know, that’s what the lens if for. So why are your photos blurry?

Wait, are they blurry or are they out of focus? Here is how to

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tell:

Blurry photos tend to have been taken with a slow shutter speed which causes blur. Either this blur is your subject moving or camera shake. (I’m assuming your caffeine fix wore off from the morning and this isn’t causing more camera shake.)

A shutter speed value that is too slow to hand hold successfully depends on the sensor size, focal length your

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lens is at, and how well you can hold the camera still. A standard guideline for a cropped sensor like the Nikon DX or Canon APS-C bodies is 1/(2 x Focal Length). For example, say this is a 50mm 1.8 you have. I would try to shoot 1/100th of a second or faster. Could you use a slower shutter like 1/60 sec? Sure, but it’s now your job to hold help eliminate the camera shake. Also with slower shutter speeds, if your subject is moving fast, they might appear as blurred.

Out of focus photos are those where the plane of focus has fallen outside where you intended. These photos usually have one or more of the following explanations for being out of focus.

  1. Miss focus – You or the camera didn’t focus on the right subject. Yes, sometimes you can’t blame the equipment. For femaleviagra-cheaprxstore example, when two people are standing next to each other, there is a space in between them, and your focus point is in the middle. Woops, you just focused on something behind them.
  2. VERY Shallow DOF – This is where the DOF of focus is so shallow that when you focus on the eyes, the nose, ears, and hair are out of focus. Some people like this sort of shot, but some people will complain the entire face isn’t in focus.
  3. Moved from Plane of Focus – This is the biggie. The#1
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    reason this lens, and others, are cursed out loud and sometimes in multiple languages. When focusing on a subject and using a large aperture (lets say f/1.8), the plane of focus is pretty shallow. If the subject moves out of that plane it will be come out of focus. Also, if you move the camera forward or backward, this plane moves with the camera so the subject could become out of focus due to you moving the plane. Example #1 below shows a center film canister that is in focus. You can see the small plane of focus by looking at the small area of carpet that is sharp. If this canister grew legs and moved towards (or away from) the camera, it would leave this plane of focus and become out of focus.

Example #1 – Film @ f/1.8

I hope this tutorial helped you understand fast lenses like the 50mm 1.8. If you have any questions or concerns please leave a comment below or email us at help@whatswrongphoto.com.

Welcome to “What’s Wrong Photo,” a place to discuss common problems in photography.

Common problems can cialis range from a simple fix like adjusting a setting on your camera to understanding an underlying theory of photography. herbal viagra the rock I hope answering your questions will help you improve your skills and open up new discussions about what it means to take a successful photo.

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If you have an idea for a topic or are struggling with a specific problem with your photo(s), please send us an email at help@whatswrongphoto.com. If you have a specific problem, we encourage you to submit photo so visitors can assess it to their best ability. Because, as you know, a picture can be worth a thousand words.