Archive for the ‘Photo Techniques’ Category.

Alpha 900 – finder and frames

Rating 3.00 out of 5

It’s not going to be long before we see the Alpha 900, and some cameras are known to be out there on trial in the hands of Sony staff and pre-release testers. I am not one, so rest assured, this is not a leak! What can you expect from the Alpha 900′s full-frame prism finder?

(Note: this post was written in early August – it is now 100% certain that the finder is 100%, and at 0.74X magnification will be – as had been hinted – the largest of all current DSLR finders in apparent visual terms except the EOS 1Ds Mk III which is 0.76X. Comparisons: EOS 5D 0.68X, Nikon D3 0.70X)
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Repairing an image by cloning from another

Rating 3.00 out of 5

MANY photographers habitually use layers from everything. I don’t! In fact, I try to minimise my time spent on post-processing shots for stock library sale, and work very quickly. If it needs complex setup or demands working using layers to be able to go back and change things, I’ve probably already wasted too much time. Here’s an example of an Alpha 700 shot created from two slightly different versions, and how it was done.

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Alpha Live View in the studio – solved!

Rating 3.00 out of 5

One of the problems with the Alpha 350/300 is that the Live View is linked to the settings when you use Manual exposure. It provides a form of metering, a relatively accurate preview of under or over exposure. This makes it impossible to use Manual with studio flash (AC mains strobe) setups. Currently, there is no menu setting to turn off ‘exposure preview with manual’ and enable ‘auto LV gain with manual’. But there is a solution.

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Faking a polarizer using RAW

Rating 3.00 out of 5

Here’s a question which came in to my email just now:

“Could I process a RAW file in Photoshop to achieve a similar effect as if I had used a Polaroid lens filter?
Or would I be better just using the Polaroid filter?”

The answer is that you can never imitate the effect of polarizing light (which changes the way reflective surfaces look, and deepens or lightens the sky blue according to the zone of the sky relative to the sun’s position. But you can use Adobe Camera Raw (CS3 versions) to deepen skies you never thought could be rescued.

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360° panorama (QuickTime VR) from A700

Rating 3.00 out of 5

Daniel Oi – who provided our most popular external link in recent weeks with his Glasgow Merchant City surround-vision stitched VR panorama – has created a superb view of the Kibble Palace glasshouse at Glasgow’s Botanical Gardens:

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An amazing 360 degree panorama

Rating 3.00 out of 5

Daniel Oi is a dedicated and experienced Alpha system user currently staying in Glasgow. He’s created a particularly impressive 360 degree panorama of a tiny area of the city centre which has unexpected magic in its Christmas lighting garb. Go down Buchanan Street, turn towards George Square, and you will walk through this Georgian enclave with street cafés, galleries, bookstore, museum and an atmosphere quite unlike the busy main drag or the vast square it links.

http://cnqo.phys.strath.ac.uk/~daniel/Panos/MerchantCity.mov 

This is well worth a visit!

- David

Alpha 700 shoots the Cirque du Soleil

Rating 3.00 out of 5

On January 5th, Photoworld was lucky enough to be able to attend the dress rehearsal and official photo-call for the new Cirque du Soleil production at the Royal Albert Hall in London, and to put the Alpha 700 through its paces for high ISO fast action stage show capture. This article with large reproductions of the images appears in our Photoworld issue due out later in January.

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True detail vs. fake sharpness

Rating 1.67 out of 5

It’s the same on every web forum – if you post a digital picture which would be acceptable to a photo library or professional buyer, half a dozen grumpy one-liners will come out saying ‘That don’t look sharp to me’ or ‘there must be something wrong with your XXX’ (fill in D300, A700, E-3, D3, 40D as required). Then someone posts a hugely messed up image and people say ‘Wow! What sharpness!’…

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Does the Alpha 700 really do ISO 12,800?

Rating 3.00 out of 5

I HAVE set up a pBase gallery with a large number of comparison studio shots, all the way from ISO 100 to the maximum, using the A700 and Nikon D300. It has some minor discrepancies in shooting conditions which I need to explain to anyone visiting the gallery.

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Advanced DRO – the A700′s magic bullet

Rating 3.50 out of 5

BEFORE we publish a fuller assessment of the Sony Alpha 700, here is a taster of just one improved function, the Dynamic Range Optimisation (DRO) system built into the camera. For social, wedding, sports, music, theatre, news and event photographers DRO Advanced Manual settings are a real magic bullet zapping the bugbears of excess contrast, poor lighting, and inadequate flash penetration.

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