tamron_a007

Price: $1400

Fine full frame standard

THE LOW-DOWN: The Tamron lens, with an f2.8 constant maximum aperture, is in the category of “standard” zoom for a full frame DSLR. It can be used on a reduced sensor APS camera, where the focal lengths then become 36–105mm. Optical performance improves on an APS camera because of the reduced circle of illumination – the sensor captures the sweet spot in the centre of the image. We tested it on a full frame Canon. Construction quality is good. The new Ultrasonic Silent Drive focusing and the Vibration Correction (USD and VC) add to the versatility of the lens. New glass elements promise better image quality and new diaphragm geometry is said to improve out-of-focus highlights. Zoom action is slightly stiff and rough but manual focus is smooth.

LIKE: Auto focus lives up to the promise in the advertising. It is lightning fast and completely silent. Optical performance is generally good, with reservations about edge sharpness and distortion. Used judiciously the lens produces excellent images with slightly warm tones.

DISLIKE: The barrel distortion at wide-angle and pincushion distortion at 70mm is obvious. However this is characteristic of this category of lens. You wouldn’t use it for architecture.

VERDICT: Canon, Nikon and Sigma all make a lens similar to this one. It is a versatile event lens, useful for weddings and parties where a quick change of focal length is more important than pin-sharp edges. They all seem to work best, with reasonable overall sharpness and reduced distortion, with the aperture closed to f5.6 or smaller. The Tamron is well specified, well priced and well made. To give an idea of how well priced, the Canon equivalent costs around $2500 and the Nikon $2200.

 

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[PCs ain’t PCs]

by terry on 17 May 2012

When it comes to buying a computer to be used for editing photographs not all PCs are born equal. And they are not all designed for doing the same thing.

A computer that will only be used to write Word documents, send email and surf the interweb carries very low expectations. Virtually all available computers are massively over-specified for this sort of use.

If you want to play games with lots of flashing lights and loud explosions then you need much more graphics power and a big, brassy screen – and who cares about colour or off-axis viewing. The basic requirement is a high performance graphics card that will cost more than most people spend on an entire system.

For photo editing a decent amount of RAM – say 4gb – and a graphics card that can handle high resolution output through a DVI connector. Integrated graphics processors that pinch memory from the system are common in lower cost PCs but not much loved by photographers who prefer discrete cards with about 1gb of RAM on the card itself.

But the famous bottom line is: it’s all about the monitor. It goes without saying that a monitor should be a good size – at least 50cm corner to corner. And it should have a resolution of at least 1920X1080 lines, the same as a high definition TV. More is better. We sit close to our monitors for photo editing and we don’t want to be conscious of the pixel structure on the screen.

The magic letters for monitor assessment are IPS. It stands for in-plane switching and is a screen technology invented by Hitachi to improve colour and to increase viewing angles on LCD monitors. The best padlets, including the iPad and ASUS Transformer, have IPS screens. We have heard rumours of notebook computers with IPS displays, and presumably they exist, but we haven’t been able to track one down.

There is an up-to-date list of available IPS desktop monitors on the Cnet web site at tinyurl.com/6mar7c4 Our preference is for a monitor with a matte screen because the reflections in glass are annoying and can affect perception of colour and contrast.

When it came to choosing a notebook computer for editing and displaying images we settled, somewhat reluctantly, on the 13.3” MacBook Pro. We don’t like the arrogant, cultish ethos of the company and we have heard alarming stories about their after-sales service (see tinyurl.com/759jx8a, and tinyurl.com/7yaohhq for the happy-ish ending) but we bought anyway. The reason? Of all the notebooks we looked at, including some expensive Windows units, only the MacBook screen displays black blacks, white whites and accurate colours. And the contrast and colour do not vary too much when viewed off-axis.

In the end it’s the picture that counts. If the colour, tonality and wide viewing angle is right then the rest can be easily fixed or left to take care of itself.

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[REVIEW—OLYMPUS TOUGH TG-820]

by terry on 10 May 2012

highres-olympustoughtg8205jpg_1328693617

Price: $400

Ruggedly handsome

THE LOW-DOWN: This 12 megapixel “indestructible” compact camera has a 5X zoom lens (28–140mm film equivalent). The handsome body comes in red and black. It will withstand a 2m drop (onto carpet or concrete?) and is waterproof to 10m. It is also dustproof and will operate down to -10 degrees. You can probably sit on it without doing any damage. The 75mm LCD is outstanding. It has 1.03 million dot resolution and is bright enough to still be visible under the afternoon sun. Our review unit had a badly scratched LCD suggesting that you shouldn’t treat the screen as indestructible. Operation is either point and shoot auto or P for slightly – but not much – more user control. In common with all these little toughies the buttons are small and fiddly. There are all sorts of “magic” filters, mostly amusing but one or two useful. We like Sparkle! It does full HD video with what the company calls multi-motion image stabilisation.

LIKE: Detail resolution up to ISO 200 is excellent for this camera type. There is just a hint of noise reduction smudging but in ordinary use it won’t be noticed. As for the ridiculous ISO 6400 — don’t ask! The camera is responsive, with quick and accurate autofocus. Macro mode is good.

DISLIKE: The tiny adjustment buttons and knobs.

VERDICT: This camera competes with look-alikes from Panasonic and Nikon, both of which are very good indeed. The Olympus can easily stand the comparison. For anyone planning on snorkeling on the Great Barrier Reef or rafting down the Franklin this camera should be at the top of the shopping list. It will take plenty of rough handling and it will take excellent photos, under or over water.

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[MAC PIXIE OR PC NERD?]

May 10, 2012

Photographers are, by and large, lovely people. Unlike writers or composers they tend to be a collaborative lot, admiring each other’s work and giving mutual encouragement. But they do have one small character flaw – they are the most conformist mob we have ever come across. Raise the subject of computers and printers and photographers [...]

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[REVIEW—CANON POWERSHOT A4000IS]

May 3, 2012

Price: $200 Too many pixels… THE LOW-DOWN: This 16 megapixel compact camera has an 8X zoom lens (28–224mm film equivalent). The attractive body comes in three colours and is definitely a fashion accessory. Canon, on their web site, list it as a basic “point and shoot” camera, although it is possible to select P (program) [...]

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[CREATIVE EVIL PHOTOGRAPHY]

May 3, 2012

Here’s a book title to get the pulse racing: Creative EVIL photography. What images does that conjure up? Adolf Hitler and Pol Pot cavorting naked at a midnight Black Mass on Friday 13th? You would certainly want to have your camera handy on that occasion, would you not? Bad news. The meaning of the title [...]

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[REVIEW—PANASONIC LUMIX DMC-TZ25]

April 26, 2012

Price: $400 Impressive THE LOW-DOWN: The TZ25 and its sibling, the TZ30 (with GPS, $450) is the latest small upgrade of Panasonic’s “travel” camera. It has a 12 megapixel sensor and a Leica-branded 24–384mm (film equivalent) zoom. There is a conventional PASM control knob for those who like to think for themselves and iAuto for [...]

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[ON REVISITING THE NATIONAL GEOGRAPHIC]

April 26, 2012

Some of us are old enough to remember that subscribing to the snooty National Geographic used to be no easy thing. We had to find someone who was already a subscriber – or “member” of the National Geographic Society of Washington DC – to nominate us. Once we had paid our money we had to [...]

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[REVIEW—FUJIFILM X-Pro1]

April 19, 2012

Price: $2500 with 35mm lens Gorgeous, but… THE LOW-DOWN: This 16 megapixel interchangeable lens camera uses an APS-C sensor, like most DSLRs, but with a classic optical viewfinder. The filter array on the sensor is unique to Fujifilm and is claimed to give better sharpness. The viewfinder uses Fujifilm’s dual optical/electronic viewfinder with the optical [...]

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[SLOW PHOTOGRAPHY IN THE HIGH COUNTRY]

April 19, 2012

Cope Hut by Richard White Australia may be deficient in towering mountain ranges, but the small peaks that we do have are not without their charms. What we are fond of calling the high country has attracted its fair share of photographers over the years. The Melbourne Camera Club has acquired some beautiful photographs taken [...]

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