Wednesday 24 April 2013

Review Digital Camera World 04-25-2013

Blogtrottr
Digital Camera World
Seascape Photography Tips: using your 10-stop ND filter for ultra long exposures
Apr 24th 2013, 23:01

As the sun re-emerges we all start thinking about hitting the beach. For photographers, however, this takes on a completely different meaning. In this tutorial we offer our best seascape photography tips for using your 10-stop ND filter to shoot long exposures that tame the waves and convey a sense of movement in the clouds.

Words and images by Jeff Morgan.

Seascape Photography Tips: using your 10-stop ND filter for ultra long exposures

We're fortunate in the UK, where Digital Camera World is based, because we have such easy proximity to thousands of miles of beautiful coastal scenery, and most of us are within a couple of hours' drive of the shore.

The advantage of costal photography is that such a huge variety of weather conditions can produce great images; dark and stormy overcast days can look great in monochrome, while puffy white clouds look fantastic in colour.

However, whatever the conditions, seascapes are invariably at their best when taken with a long exposure. Static waves and sea spray become a smooth, milky blur that has a dream-like quality.

Fast-moving clouds turn into impressive streaks that give the sky real texture, and distractions like birds – and even people walking along the beach – simply disappear.

But getting a satisfactory exposure is difficult in all but the lowest-light conditions and narrowest apertures, because effective exposures often need to be several seconds or minutes long.

To achieve this without resulting in over-exposed shots, the level of light hitting your camera's sensor needs to be cut down using a neutral density (ND) filter – which is semi-opaque to reduce the amount of light without altering its colour.

While these have been available in varying strengths for many years, a more recent innovation is the super-strong 10-stop ND filter, which reduces the light hitting your sensor by a thousandth – or put another way, would increase a 1 sec exposure to more than 15 minutes! These filters are available from a number of manufacturers.

As well as an ND filter, you'll need a tripod and midrange zoom (your kit lens is ideal). We went to Bedruthan Steps, Cornwall, for a long-exposure Masterclass. Here's how we got on…

Seaside Photography Tips – 01 Break the rules!

Seaside Photography Tips - 01 Break the rules!

We often talk about the 'rule of thirds' and the importance of placing the horizon at the top or bottom thirds of the frame.

However, reflections are the exception that proves the rule!

Putting your horizon dead centre makes for a dynamic composition as we're creating interest in both the sea and sky.

The rule you don't want to break, however, is not getting an even horizon. Use a hotshoe spirit level or Live View with the grid display to ensure your horizons are perfectly level.

PAGE 1: Seaside Photography Tips – 01 Break the rules!
PAGE 2: Seaside Photography Tips – 02 Camera settings
PAGE 3: Seaside Photography Tips – 03 Attach the filter
PAGE 4: Seaside Photography Tips – 04 How to calculate exposure (free cheat sheet)
PAGE 5: Seaside Photography Tips – 05 Beach challenges
PAGE 6: Seaside Photography Tips – 06 When to shoot?
PAGE 7: Which filter to use for long-exposure seascapes

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DIY Photography Hacks: get cool soft focus effects using a pair of tights
Apr 24th 2013, 10:00

There’s no need to spend hours on the computer creating soft focus Photoshop effects when it’s so easy to do it in-camera. In our latest DIY Photography Hacks post we show you how to use a simple pair of tights to create a wonderful soft-focus effect in your portraits.

DIY Photography Hacks: get cool soft focus effects using a pair of tights

It's possible to buy all manner of soft-focus filter attachments for your camera. Nikon even makes a lens that allows you to defocus areas of a shot. But for this project we're using a cheeky old-fashioned technique which works amazingly well.

All you need is a pair of tights. You could use ones that the owner doesn't want any more, though they cost so little to buy that we'd recommend you go out and shop for a new pair.

Take a pair of scissors, and carefully cut out an area large enough to cover the lens and extend down onto the barrel. Fix it down with an elastic band and start shooting.

You'll need to get tights of the right thickness and take the colour into account, and be careful not to ladder the fabric, but that really is all there is to it.

The fine net pattern of the fabric produces the soft-focus effect, as the image is formed from the light that passes through the tiny gaps between the threads.

This may be related to the diffraction (softening) effects you get when shooting with extremely small lens apertures, but if there are any experts in optics out there who know better, please let us know!

There are two reasons why we really like this effect. First, there's no need to make any special adjustments to the camera settings – you can just fit the tights and shoot normally. The only settings we changed were the sort you'd use for portrait photography anyway.

Second, you can see just how your pictures will come out in the viewfinder as you shoot, and on the LCD display immediately afterwards.

Photoshop has its advantages, of course, but it's really useful to be able to see these effects as go along so that you can modify your settings and your composition to get the best possible results.

Make soft focus effects the DIY photography way

Make soft focus effects the DIY photography way: step 1

01 Advice from an expert
Our model Sam helped us pick out suitable hosiery for our soft-focus effect. The colour makes a difference, of course, but the key factor is the thickness, or the 'denier' value. We settled on 15-denier tights, which gave the perfect soft-focus look but still showed enough detail in Sam's features.

 

Make soft focus effects the DIY photography way: step 2

02 A bit of a stretch
You need to cut out a section from the tights which is at least twice the size of the lens, so that you can fold it back along the barrel and secure it with an elastic band. An extra pair of hands is useful! Once the elastic band is in place, pull on the edges to smooth out the wrinkles.

 

Make soft focus effects the DIY photography way: step 3

03 Shades of grey
Our tights are a charcoal grey colour. The shade of grey won't make any difference to the pictures – darker tones will reduce the exposure, but the camera's exposure meter will compensate automatically. Different-coloured tights will affect the colour balance, though.

 

Make soft focus effects the DIY photography way: step 4

04 Smile please
Now we just shoot as normal. These 15 denier tights are quite thin, and the autofocus on our D300s copes perfectly well even though the image is a lot hazier. Normal portrait photography rules still apply: use a longer lens for a more flattering perspective, and always focus on the eyes.

Best Camera Settings
To make the most of the hazy, soft-focus effect we set the camera to A, or aperture-priority, mode and set our 18-70mm lens to its longest focal length and maximum aperture (f/4.5 at 70mm). This gives shallow depth of field so that the background is thrown out of focus. We used Auto White Balance because our tights were a neutral colour. If you use coloured tights, set a 
manual White Balance preset to stop the camera trying to 'correct' the tint.

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Sony HX50: new Cyber-shot is world's smallest camera with 30x zoom
Apr 24th 2013, 04:00

Sony has unveiled the world’s smallest and lightest ever camera with 30x zoom, launching the Sony HX50.

Sony HX50: new Cyber-shot is world's smallest camera with 30x zoom

The new Sony Cyber-shot camera boasts an equivalent focal length of 24-720mm and offer image stabilisation that’s twice as effective as its predecessor, the Sony Cyber-shot HX200V, according to Sony.

Onboard the Sony HX50 is a 20.4-megapixel3 Exmor R CMOS sensor and BIONZ processor, with high-speed autofocus that works at more than twice the speed of the Cyber-shot HX200V4, Sony says.

Among the camera’s other key features are a dedicated Exposure Compensation dial on the Sony Cyber-shot camera’s top plate and integrated Wi-Fi that allows photographers to share photos instantly or use their smartphone as a remote control for the camera.

A Multi Interface Shoe allows photographers to incorporate accessories such as an electronic viewfinder, flash or microphone for better video sound quality, and the camera boasts a Multi Terminal for using a remote controller.

Other features on the Sony HX50 include a Memory Recall mode, which allows photographers to store three favourite camera settings, a battery life of 400 images and a range of creative effects modes.

The Sony HX50 price tag will be £350, with a release date set for the first week of May 2013.

Official Sony HX50 Specs

Effective Pixels (approx.)
20.4 megapixels

Image Sensor
1/2.3 type (7.82mm) Exmor R CMOS sensor

Processor
BIONZ

Lens
Sony G, 24-720mm, f/3.5 (W) – 6.3 (T), 11 elements in 10 groups (including 5 aspheric elements)

Zoom
30x

ISO (still image)
Auto/80/100/125/160/200/250/320/400/500/640/800/1000/1250/1600/2000/2500/3200/
4000*/5000*/6400*/8000*/10000*/12800*
* Achieved using “By Pixel Super Resolution” technology and overlay burst shooting.

Display
7.5cm (3.0type) (4:3) / 921,600 dots / Xtra Fine / TFT LCD

Wi-Fi
Yes

Battery
NP-BX1 and USB Charge/USB Power Supply

Battery Life / still image shooting (approx.)
400 images / 200 minutes

Approx. dimensions W x H x D
108.1mm x 63.6mm x 38.3mm

Weight (body only, excluding media and battery)
Approx. 272g (Battery and Memory Stick DUO are included) Approx. 246g (Body Only)

READ MORE

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