Archive for the 'Digital' Category


Olympus Stylus 550WP (water proof) Digital Camera

Author: CameraBuff
June 29, 2009

226760_m.jpgThis is a camera is for those that wants to take great pictures od the aquatic adventures this is a great companion.  This camera is new and with 10 mega pixels stylus.
The Olympus Stylus 550WP is a go any where digital camera.  It does as well under water as it does on land. This camera is slim light weight, has an aluminum case and a rubber O-ring gasket that seals the elements.  This camera is good for a depth of 10 feet and has a underwater scene mode which is good for the pool or snorkeling and can be used on a water slide.

Olympus Stylus 550WP has an Auto mode built in and identifies what you are shooting at, land scape’s, portrait, night shots and sports.  The camera adjust the setting to capture the best quality pictures. The 550WP is hassle free feature does most of the thinking for you and this is good for a first time user.

The Olympus Stylus 550WP digital camera has face detection your portraits and group shots will be good. The Stylus 550 WP can detect up to 3 faces in the frame and will Auto focus and will capture a sharp portrait and group pictures.



Canon PowerShot G10 - digital camera

Author: CameraBuff
June 25, 2009

46c502a7-2a43-416c-b0bd-cee27c508401.jpgCanon Power-Shot G10 - digital camera is one of Canon’s new cameras intended to gratify the demands of the customers desire of a powerful, compact, pocket size DSLR.  This digital camera came out in September 2008 as a replacement to the Power Shot G9.  The Canon Power Shot maintained a number of the features of the Power Shot G9 including full manual exposure control, a flash hot-shoe, RAW recording, and a retro-styled body.

The Canon Power Shot G10 has a new lens with a 5x optical range equivalent to 28mm to 140mm.  Canon Power-Shot G10 - digital camera is better when faced with cramped interior spaces, large group shots, larger landscapes and or large building shots.
Canon Power-Shot G10 - digital camera is one of the higher resolution cameras on the market 12 mega pixels to 14.7 mega pixels, on the market. There is a new self timer which allows the photographer to get into the picture which exploits facial detection and motion detection.

The viewing screen is still three inches the resolution has been increased from 230,000 to 460,000 pixels this allows a finer detail when viewing your picture and during play back.  There is a wide screen for viewing wide angles  shots. 



When is the best time to buy a Digital Camera?

Author: CameraBuff
June 24, 2009

8.jpg 

Is this the best time to purchase a Digital Camera?

To answer this question depends on you and your situation.  Here are some ideas you may want to consider if its the right time to purchase a digital camera.

Do I need a digital camera today or can I wait?

The fist question is do I need digital camera now?  I feel that the best time you should buy a digital camera is when you need one.  This does not take a rocket scientist to answer this question.  There are a large number people that get into the waiting game.  These individuals will sit back and wait on the new models to be released, then they wait on the prices to go down, then there is a news release there is a new model coming out and again you wait.  This is a vicious cycle.

55d1b2d0-ceb5-49cb-94aa-7ae824c2edce.jpgIf there happens to be something coming up such as a trip, wedding or any other reason and you need a new digital camera, then you should go ahead a purchase it now.  You should follow the rule I outlined in “When should I buy a digital Camera”.
If you do want the newest model and you can wait maybe you should go ahead and wait.

Most of the digital companies release new digital cameras twice a year normally if there are any new cameras.  Reports on new camera are normally released in January Thur February.  These new camera are normally delivered to the stores in February Thur April.  The next release hits the stores normally in October and November for the Christmas sales.  However, there are fewer newer digital cameras for Christmas.  Most of these cameras only have some new updates to their models.

If you are waiting on the newest model of digital camera you will more then likely pay a higher price.  So if price is not an issue you may want to wait for the newest model.

If features and price are not an issue I recommend that if you need a digital camera go ahead and buy it.  You may want to shop around to see where you can find the best price.
 

If you need a digital camera now go ahead and buy it now.



How to Buy a Digital Camera

Author: CameraBuff
June 23, 2009

 The other day I had a friend and customer asked me which digital camera should I purchase?  This is one of the hardest questions to answer, so I spent sometime  and thought about it, but not too long.  So I decided to take the same steps that I use to purchase anything.  My first question is what do I want this Digital Camera to do and what am I going to use the end product?  So I though this might be something I could put in my blog as good information.  I will write several post over the next few days.

I will not at this time go through the different features that a Digital Camera has to offer.  I also will not discuss which models are the best to purchase.  Digital camera change every time they make a model change.  What type of digital camera should I buy a point and shoot or a DSLR (Digital Single Reflex), this is where you look into the view finder and you look through the lens. There are some question and eliminate you will need to keep in mind when deciding on which digital is best for you.

When buying a digital camera there are nine steps you should keep in mind.  These steps are not in any order.

1.  What do you need
One of the biggest mistake you can make is buying a digital camera is beyond what you really need and do not let someone talk you into something you do not need.  Here are some questions you should ask yourself before buying.
 What do I need the camera for?
 What kind of photo’s will I be doing? (sports, landscapes, portraits, or a little of each)
 Where will you be taking your photo’s What conditions? (out doors, indoors, bright light, low light)
 Will you use the automatic feature or do you want to set all of setting like a photographer?
 What is your experience using a camera?
 Do you want to be able change lens for different types of pictures?
 Ho much do you want to spend on a camera?
 These are just some of the questions you should ask your self and there are other that can help make your decision on what to buy.

2. How many mega pixels do you need?
Several years ago mega pixel were important, however today this dose not mean as much.  However every mega pixel meant something several years ago.

Today most digital camera are being product with at least 5 mega pixel.  Digital camera with larger number of mega pixels can be a drawback as the images can be to large that the image can take up to much of the memory card and computers.  When it comes to mega pixels you need to decide where will you print you pictures.  You also need to decide how large will these pictures need to be (taking up space).  For normal size pictures any camera with four or more mega pixels will be fine.  You will want to buy (pay the extra money) a larger number of mega pixels if you plan to blow up your photo’s.

3. What extras will you need?

You must keep in mind what extras will you need or want to add on.  You may want to add on the following:

digital-camera-accessories.jpg A camera bag   
 Extra memory card/s
 replacement batteries or battery charger
 Different lenses and filters
 And a number of items you may want to add on.

4.  Do you now own gear that will work with your new camera?

You can save money if you already own some of the extras.  You will want to make they are interchangeable (compatible).  These could be lens, filter, memory cards and etc….

4.jpg5.  What kind of camera do I want?

01.gifShould I purchase a DSLR or a point and shoot digital camera.  Every day the Digital Single Reflex DRLR are coming down in price all of the time. 
Should you purchase a DSLR camera please understand these camera are larger and heavier and they are harder to keep clean.  If you are changing lenses these camera can be much more complicated to operate over a point and shoot cameras.

6.  Optical zooms are the best.

Optical zoom are not created equal. There are two different types of zooms.  There are the “optical zoom” and the “digital zoom” on the market today.

You should choose an optical zoom these camera should be at least 3X in length, this will make your subject and the picture 3X as large.  There are super zoom on the market and the come up to 18X.

The digital zoom only increase the pixels in your picture to look bigger, your picture is noisier and grainier its like looking at a picture close-up.

7.  Research

Before you buy anything that cost a large amount of money (when I buy any thing over $100).  Prior to purchasing a digital camera you should read articles on the digital camera you are interested in.  I recommend you go wherever the sell magazines on the different digital camera, or check out the reviews on the Internet.

I do not recommend that you listen to the sale clerk, most of them do not know anything about the camera they are trying to sell.  These individuals come into a store and apply for a job and the pick up information about camera they have over heard.

You can also ask your friend about there digital camera and look at their pictures.  They may not be that knowledgeable but they will be honest with you in most cases.

8.  Experience the digital camera

digital-camera-test.jpgOnce you have narrowed down the number of digital cameras to a few go to your local store and look at the these digital camera.  Handle each of the camera you are interested in.  Now you have the camera in you hands you can find out if it will suits your wants and desires.

9.  Once you have looked at the different digital camera it time to purchase the camera you are interested in.
 



Canon Power Shot A470 Digital Camera

Author: CameraBuff
June 22, 2009

3.jpgCanon Power Shot A470 Digital Camera  is a budget camera, this is a real good camera and you won’t have to pay a lot either.  The A470 Power Shot camera takes good pictures for the price.  This camera isn’t the best looking digital camera and it does not have all of the fancy features, the price is hard to beat.  It will be hard to find a better digital camera for the price.

Canon Power Shot A470 Digital Camera  comes in four colors: red, blue, orange, and gray.  These color can not cover up the large an unattractive design.  This Digital Camera feels like an over sized candy bar it measures about 4 inches long and in excess of a 1 1/2 inches thick and two inches wide.  The Power Shot A470  is one of the heaviest digital cameras at 7.6 ounces with 2 AA batteries and a SD card on the market for its size.  Because of the size the Canon Power Shot A470 Digital Camera  is easy to grip and hold on to, the controls are larger and easier to use for the largest hands and fingers.

There are fewer features (controls) on the A470. There are several preset modes, the movies take 30 frames per second (QVGA) and 20 frames per second (VGA).  Canon Power Shot A470 Digital Camera  has an auto focus, auto exposure right along with a facial detection modes that are normally not found on a model at this price range.
Canon Power Shot A470 Digital Camera  make a noise when taking pictures and at higher speed the noise become even more noticeable.  For the price the A470 is a good digital camera to own. 

Add your own comments:



1.3 Mega Pixel Enigma Digital Camera

Author: CameraBuff
June 19, 2009

0.gifThe 1.3 Mega Pixel Enigma Digital Camera  has been classified as the worlds smallest digital camera.   There are very few cameras that can match up to this camera, the quality and style at this price.  This is a very small digital camera measuring 70×50x23mm, the manufacture has squeeze the electronic into such a small space.
The 1.3 Mega Pixel Enigma Digital Camera  has everything a person could want.  The Enigma has a web cam so you can take movies up to 3 minutes in duration and a true 1.3 Mega Pixel which provides a high resolution of 1280 x 1024 pixels.

The 1.3 Mega Pixel Enigma Digital Camera  is a take anywhere camera.  The case is made of metal and p462ex1.jpgcan take most abuse that anyone can throw at it during normal use.
 

During normal use the Enigma can store 140 pictures and around 20-25 at maximum resolution.  You can purchase a larger smart-card for an increase in the number of photo, thanks to the expanded smart-card slot.
 
 



What is a Mega Pixel?

Author: CameraBuff
June 18, 2009

7.jpgWhen Digital Cameras first appeared back in the last half of the 1990’s the cameras were designed mostly as a tool to produce images for web design. The size and quality of the images were not a reguarded as a concern.  Most of the early digital camera did not have the technology to produce colored pictures and fine details.  Most of the prints that were reproduced were not suitable to print because they lacked the contrast needed.  The more expensive professional digital cameras couln’t match the high quality of the film cameras.

The Technology of the digital cameras has changed a lot and you can find digital cameras that can compeate with film cameras.  Price of a digital camera will not guarantee the best quality and for the uninformed this can be a major task.



1.3 Mega Pixel Digital Camera

Author: admin
June 17, 2009

5.jpg1.3 Mega Pixel Digital Camera are the least expendive of digital cameras being made.  From the very beginning these camera were not very good but as more and more camera companies started making digital cameras they are getting better. For some time now there has been a striking development of the product lineup.

The 1.3 mega pixel digital cameras are so simple it’s perfect for everyone from kids to grandparents.
The 1.3 megapixel digital camera offers point-and-shoot operation for amazing ease.  These digital cameras  are inexpensive.



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callibrate-1.jpgOne of my favorite lenses for journalism and street photography is the wide to telephoto zoom. Now we can shoot everything from landscapes to portraits with just one lens. However, there are times when you need a prime “normal” lens to capture exactly what your eyes are seeing. Most of us can adjust our zooms to approximate what were seeing but it usually leads to a less than desirable result.We know that most modern cameras get the focal length from the electronics within the lens, however, most cameras do not display this information until after the shot. We also know that all lens manufacturers display some type of focal length information marked on the zoom ring. Most of these markings are only approximations of the true focal length and do not take into account the crop-factor of dx type sensors. So how can we be sure our lens is set to a “normal” focal length?

An easy solution is to calibrate your lens to your eye. You are probably thinking, “How is this possible”. We can do so using the same method we use to focus your fathers trusty pair of binoculars.

callibrate-2.jpgCalibrating your lens is simple. First, find a suitable static target to focus on. With both eyes open, adjust your camera so that one eye is looking through the viewfinder. Focus your lens at your target as you normally would.

Now, with both eyes open and focused on your target, slowly rotate your zoom ring until your image is sharp and your eyes no longer feel strained. Refocus your lens if necessary and repeat the procedure. You will get to a magic point where your focus and depth perception are “normal”.

At this point, you should be able to remove and replace your camera from your eye with no apparent change in your target. Your lens is now calibrated to your eye. You can optionally create a small mark on your zoom ring that corresponds to the mark on the body. Later on, when you need a “normal” lens, just rotate your zoom ring to that mark, and voila.

Gary C. Millwater has been a freelance photographer since 1976. Originally from New Jersey, he has traveled all around North America, Mexico, and the Bahamas looking for that next great shot. After moving to Florida in 1987, he was forced to trade in his lenses for a “real job”. He now shoots just for the fun of it. His non-published work can be seen at millwater-photography.com



Photography 101.6 - Shutter

Author: dakokta
March 7, 2009

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Photo 101.6 shutter

Photo: Rainer Ebert used under CC license

The following post is from Australian photographer Neil Creek who just launched a free background image site featuring his photography, and is developing his blog as a resource for the passionate photographer.

Welcome to the sixth lesson in Photography 101 - A Basic Course on the Camera. In this series, we cover all the basics of camera design and use. We talk about the ‘exposure triangle’: shutter speed, aperture and ISO. We talk about focus, depth of field and sharpness, as well as how lenses work, what focal lengths mean and how they put light on the sensor. We also look at the camera itself, how it works, what all the options mean and how they affect your photos.

This week’s lesson is Shutter.

Here’s What We’ve Covered Previously in this Series:

Lesson 1: Light and the Pinhole Camera
Lesson 2: Lenses and Focus
Lesson 3: Lenses, Light and Magnification
Lesson 4: Exposure and Stops
Lesson 5: Aperture

In previous lessons we have talked about the basic theory of how a camera works, including some basic optics, and introduced the idea of exposure and how we control it with the exposure triangle. In this lesson we will be drawing upon what we have learned to understand the second point on the exposure triangle - shutter - and how it works to create your photo.

The Shutter

The shutter’s function in the camera is simply to block light from getting into the camera, unless a photo is being taken, and then to allow light in only for as long as needed to achieve a correct exposure. The name shutter is a little misleading, however. Rather than being a door that opens, and then closes at the end of the exposure, it is more like a gate, with a pair of doors that slide together across the sensor. This arrangement allows for much shorter shutter speeds than could be achieved by moving a single door. The animation below explains this more clearly:


Shutter animation

For the sake of clarity, the above diagram excludes the mirror and all other camera mechanics, only showing the sensor, shutter and some representative surrounds to give a context for the illustration.

When you press the shutter release on the camera, a complex sequence of events occurs, including setting the aperture in the lens, flipping up the mirror of an SLR and a lot more. We’ll just look at the shutter however. So referring to the animation above:

  1. The rear of the two shutter “curtains” as they are called, opens behind the front curtain, and stays up out of the way. At this stage no light has entered the camera, as the front curtain is still closed.
  2. The front curtain drops away, revealing the sensor behind, and allows the light to enter the camera, beginning the exposure.
  3. After a period determined by the set shutter speed, the rear curtain now drops to close the camera to light and end the exposure.
  4. To prepare for the next exposure, the front curtain returns to its normal closed position.

There is an outstanding interactive movie of the inside of a Nikon D3 showing the complete process in incredible detail. I highly recommend taking a look.

Fast Shutter Speeds

When the shutter has been set for a very short exposure period, such as 1/200th sec or faster, the twin curtain system comes into its own. A single “door” shutter wouldn’t be able to open and close this fast. For such short exposures, the rear curtain starts to fall, covering up the sensor before the front curtain is even fully open. The result is a moving open slit passing in front of the sensor. See the animation below:


Fast shutter animation

This method of exposing the sensor (or film) is important when shooting with flash, but the topic of flash sync speed is best covered in another post. In the very early days of photography, when films had poor sensitivity to light, the rolling gap effect of this kind of shutter led to problems with moving subjects, but today there is no disadvantage at all. Most high end DSLRs can achieve incredibly short shutter speeds, such as 1/8000th sec with this shutter design.

The Shutter’s Effect on your Photos

It may seem like your camera is capturing an instant in time, but in reality, it’s capturing a duration of time equal to your shutter speed. This is especially noticeable with long exposures. Anything in the image that is moving while the shutter is open will appear blurred. This also includes the camera itself. Accidental movement of the camera during an exposure is called camera shake and has the effect of smearing the image in the direction of movement. This can be done deliberately for artistic effect, but in most circumstances you’ll want to avoid this.

A good rule of thumb to minimise camera shake is to set the shutter speed at a minimum of one second divided by your focal length. So for example, if you are using a 50mm lens, then to minimise camera shake, you should shoot at 1/50th sec at least. If you are shooting at 200mm, then set the shutter to 1/200th sec. The reason for this is that as we know, longer focal length lenses magnify the image, but they also magnify the camera shake.

Some examples of how choosing your shutter speed can affect your photos:

  • Choose a high shutter speed to freeze motion or action, for example in sport photography.
  • Create the appearance of motion in your photo by choosing slower shutter speed and deliberately controlling camera or subject movement during the shot.
  • A longer exposure on a tripod can make moving water fluffy and white.
  • Very long exposures on a tripod at night can capture very dim scenes, and even stars in the night sky fainter than you can see.

Examples

Wedge Barrel.3
A fast shutter speed freezes the action.
Photo: tylerdurden1 used under CC license
2008 Morse Park Triathlon
Panning with the subject during a long exposure blurs the background and gives the impression of motion.
Photo: indywriter used under CC license
Foamy flow
A slow shutter speed with the camera on a tripod turns river rapids misty white.
Photo: Neil Creek all rights reserved.
The Whole Night Sky
Exposure of 30 seconds or more can capture striking night sky images. In this case, several 30 second images were “stacked”.
Photo: Neil Creek all rights reserved.