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In this final Part 3, I’ll show you additional examples of some of the innovative and easy-to-use features that make the Sony Alpha A55 my recent favorite camera.

You can read about the “standard” features of the Sony Alpha A55 in Part 1 of my review. And in Part 2, I describe my experience using several of the A55’s unique features.


D-Range Optimization

When shooting a scene that has high contrast, you may notice that the shadow areas are likely to lack detail and/or the highlight areas are overexposed.

To counter this tricky lighting, the A55 offers D-Range Optimization that compresses tones to preserve detail in both shadows and highlights.

This feature is not unique to the A55; Canon offers a similar feature which it calls Auto Lighting Optimizer and Nikon uses the moniker Active D-Lighting.

However, the A55 offers five levels of D-Range optimization. To use it, press the dedicated D-Range button on the top of the camera to reveal the DRO menu item and toggle between Auto, Lv 1, Lv 2, LV3, Lv 4 and Lv 5.

In the high contrast winter photos below, you can see that the D-Range reveals much more shadow detail at Lv 5.


D-Range off

D-Range Lv 1

D-Range Lv 5

High Dynamic Range – in-camera

The A55’s High Dynamic Range (HDR) feature has a similar goal as D-Range Optimization, namely to maintain detail in shadows and highlights. HDR photography attempts to reduce the contrast levels of a scene so that the scene can be displayed with maximum detail on a print or display device.

For the last few years, HDR has been popularized by using software to combine multiple images within the computer. The A55 is one of the first to offer it easily and automatically in-camera.

For HDR, the A55 take 3 successive photos with varying exposures (bracketed). To use it, press the dedicated D-Range button on the top of the camera to reveal the HDR item. Then toggle between Auto, 1.0 EV, 2.0 EV, 3.0 EV, 4.0 EV, 5.0 EV and 6.0 EV. For example, when set to 3.0 EV, three images are captured: one at the normal exposure, one at 3 stops overexposed (+3.0 EV) and one at 3 stops underexposed (-3.0 EV).
The A55 then writes two images to the SDHC card: one at the normal exposure and a second that has been processed to combine the predominantly shadow detail from the +3.0 EV capture, the predominantly highlight detail from the -3.0 EV capture and the predominantly midtone detail from the normal exposure.

normal exposure

HDR 3.0 EV

normal exposure

HDR 5.0 EV

normal exposure

HDR 6.0 EV
Some users are surprised that the HDR images appear to have low contrast, but this is a by-product of having to reduce such a wide range of exposure values to level suitable for a display device or printing.

While it may not produce acceptable results in all situations, I’ve been happy with many of the A55’s HDR images that I’ve captured.

Note that HDR is not available unless the A55 is set to capture JPG only images (not RAW).


Multi Frame Noise Reduction – in-camera

Multi frame noise reduction is the A55’s “stealth” feature. For some reason, it hasn’t been widely promoted by Sony. In fact, I didn’t know about multi frame noise reduction until one of the Sony reps explained its use to me at a recent trade show.

When set to use this feature, the A55 captures six successive images and merges them to produce a single image with lower noise.

Once again, it’s simple to use. Press the ISO button and set the topmost item (labeled ISO) between Auto and 25600. Press the shutter release to capture the scene and a short time later after it is processed, the image is written to the SDHC card.


Left: image captured at ISO 1600;
Right: image captured at ISO 3200 with multi frame noise reduction.
Click to see an enlargement.

You can also click here
to see a more detailed full size image

Briefly, the process works like this: the camera automatically takes 6 frames at the currently settings: shutter speed, aperture, and ISO. It combines them into a single JPEG image by carefully aligning the 6 frames during compositing while at the same time using proprietary techniques to reduce noise level equivalent to two ISO exposure levels.

Above, you can clearly see that the noise level of the rightmost image is significantly less than the leftmost image even though it was captured at a higher ISO setting. I experienced an equally reduced noise level in several other images that I shot in low lighting conditions. So I find multi frame noise reduction to be a very useful yet unexpected feature.

Note that multi frame noise reduction is not available unless the A55 is set to capture JPG only images (not RAW).


Sweep Panorama – in-camera

While I’m a fan of panoramas, the task of setting up a tripod, adjusting the camera to capture a series of images, post-processing the individual images and finally pasting them together afterwards using stitching software often takes a few hours.

With the A55, you can create a panorama automatically. First, you set the mode dial for panoramas. From the shooting menu, you can select either 2D or 3D panoramas.

For 2D panoramas, you choose a direction for panning: left to right, right to left, up to down or down to up direction and a format: standard or wide.

For 3D panoramas, you choose a direction for panning: left to right or right to left and a format: 16:9, standard or wide.

As its name suggests, to capture a scene you press and hold the shutter while slowly sweeping (panning) the camera in the chosen direction. After a specified number of images are captured, shooting ends and the A55 stitches together the separate images to create the panorama and writes a single one to the SDHC card.

It’s as simple as that. You’ll want to take a few test shots to determine the speed at which you should sweep the camera. To guide you, the A55 displays helpful text messages in the viewfinder with shooting suggestions.

Below are a pair of panoramas that I captured – one with the camera held in the horizontal orientation and the other with the camera held in the vertical orientation.

Death Valley panorama captured horizontally 8192 x 1856 pixels

Bryce Canyon panorama captured vertically 3872 x 2160 pixels
I also captured a few 3D panoramas. However, to display a 3D panorama, I had to have a 3D television and special eyewear. The 3D panoramas are very impressive.

The 3D panorama will appear as a 2D panorama if you do not use a 3D television nor special eyewear.

I really enjoy the ease at which I can capture a landscape using the Sweep Panorama.


Earlier in the review, I mentioned that I’ve had extensive experience with a large variety of DSLRs. These range from low-priced entry to expensive professional level. I mention this so that you understand that my fondness for the Alpha A55 is not just “puppy love”.

When I first learned about the Alpha A55, I was amazed by the number of innovative features that Sony claimed to have packed into this new body. In the two months that I’ve used this camera, I remain impressed by the results that I’m seeing in the images and the ease with which I am able to capture them.

If the Alpha 55 is any indication of the kind of innovation that we might expect from Sony in coming months, I’ll be anxiously watching for more.

It looks like Sony has a winner. The Sony Alpha A55 is certainly a winner in my book.

 

Written by Arnie Lee

 


Shooting Birds

Certainly one of the reasons that I enjoy the profession so much is that there are so many types of photography to choose from: architectural, wedding, journalism, nature, portrait, fine art, and the list goes on.

And like many other photographers, I often jump from one type of photography to another when the job calls for it or when I feel the need to “escape” to a totally different subject.

Each type of photography utilizes different skills.

For example, portrait photography is most successful when the subject can comfortably relate to the photographer who then combines creative posing and technical lighting to record a likeness of that subject.

A food photographer may use many tricks to enhance the appearance of a gourmet dish – with sprays, glue or gels, perhaps. These are skills that make the food look good; you probably wouldn’t want to eat the food after the photo session.

Having participated in many of the types of photography over the past 40+ years, I have learned that some types of photography require a higher level of skill than others.

From my experience, “photography degree of difficulty” varies from snapshots and event photography at the low end to wedding photography at the high end. And somewhere near the high end is wildlife photography. For the last few years, I’ve spent a lot of time trying to improve my wildlife skill level.

Birds are among the most nervous types of animals to photograph. Approach a bird perched on a branch and he’ll quickly fly away.

Consequently, most of my photos of birds are from quite a distance using a long telephoto lens.

On my last outing, I snapped several bird photos which drew complimentary comments from several viewers. While I’d like to think that the photos were the result of my great skills as a nature photographer, in this case it’s not true.

Last week, I was doing a little winter hiking in Bryce Canyon NP and stumbled upon this colorful Stellar’s jay.

This photo was taken with long telephoto lens from about 50 feet away. I hesitated to approach the jay any closer for fear that he’d take off.

Surprisingly, the jay flew closer to me. In fact, he ended up landing on a tree branch that was only 20 feet from where I was standing.

I can only surmise that in the cold wintery weather he was acting differently than he would if I encountered him in warmer weather.

My telephoto lens has two settings: one to accommodate close focusing (2 meters) and one for more distant focusing (8 meters). So as not to disturb the bird, I very slowly changed the lens setting for close focusing and snapped.

Bingo. Here’s the closeup that I ended up with of the Stellar’s jay.

I can definitely say that this photo was more a matter of luck than skill. Anyway, for me this photograph is a definite keeper.

As a counterpoint, here’s a less lucky encounter that I had about an hour before.

As I was hiking along the hard packed, snow covered trail that descended into one of the canyons, I heard a screech overhead. I gazed upwards and saw a large, majestic set of wings in the sky.

I hurriedly changed lenses to my long telephoto and looked up again. But during the minute that I spent changing lenses, the predator had climbed higher and farther away.

I quickly snapped a half dozen photos before the eagle was out of range. Unfortunately, I wasn’t as lucky here. The photo is blurred owing to the distance and my rushed attempt.


So this time out, luck played a role in my capturing the Stellar’s jay. But I wasn’t as lucky with the golden eagle.

Still, I know that unless I’m out there hiking the trails and observing my surroundings that luck won’t have a chance to take hold. Each time I’m out enjoying nature I’m hoping that for that lucky catch.
Take enough photos and luck will come your way too. It’s a promise.

 

Written by Arnie Lee

 


Descending on Las Vegas

02nd December 2010

In years gone by, November was the time to travel to Comdex, the huge COMputer DEaler eXhibition. For as long as it was alive – some 25 years, I attended the Comdex Expo in Las Vegas.

Although the last Comdex took place in 2003, I’ve continued to travel to Las Vegas to analyze and discuss the publishing business with two of my closest friends. Lest you think these trips are gambling junkets, we actually visit lots of mass merchandise, retail and book stores to gauge the products, trends and competition. And most of us don’t gamble at the tables – the publishing business is a big enough gamble.

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