Photoclub Alpha

Nikon has introduced some of the technologies we might expect to see from Sony, apparently using the IMX021 sensor (the pixel count on the long edge is 4288, rather than 4272 as normally processed from a Sony Alpha 700 file, but this is within the usual limits of different raw conversions). The D90 is an A700-class camera for £699 but includes Live View with face detection contrast-detect focusing, 720p HD movie recording up to 5 minutes, 4.5fps continuous shooting, ISO to 3200 (6400 HI), and Auto Distortion Correction when fitted with current Nikon lenses.

At the end of September 2006, I set off for a quick visit to photokina in Cologne, having parted company with Icon’s am-pro magazine ƒ2 and not really needing to report on the whole show in detail. Here’s the report I wrote then, with photos, and some thoughts for the 2008 show.

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.

The latest release of Adobe Lightroom, v2, handles all Sony Alpha and earlier KM digital camera raw formats including the Alpha 700, 200, 300 and 350. It is also updated, along with the final release of Adobe Camera Raw 4.5, to handle Nikon D700. Because Canon appears to have left their filetype identical to the A400, their new 1000D was recognised immediately by ACR even in 4.5 beta version.

This article was originally published in Photoworld magazine April 2008. It discusses the reasons for choosing between the 18-70mm, 16-105mm, 16-80mm, 18-200mm and 18-250mm kit lens choices for the Sony Alpha DSLR system and has been updated from the original text.

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.

The parallel development of Carl Zeiss lenses for Sony (AF lenses in the Alpha mount) and independent manual focus lenses for other makes continues. The latest CZ design is a revision of the classic 18mm Distagon last seen in the Contax system, optimised for colour balance and reflection supression with digital SLRs.

Nikon is holding a launch today (June 30th) in London, and presumably worldwide. Richard Kilpatrick is attending for Icon Publications Ltd. As at 1.30am Monday, no press release has been received from Nikon, so we can assume an embargo will be in place but news may be released around 10.30am Monday 30th (GMT).

The launch is expected to reveal a low-cost 12 megapixel ‘full frame D300′ based on the sensor used in the D3, with a D100-type body like the D300. It may also preview the D3X, a full frame 24.x megapixel D3-type body using the new Sony high resolution full frame sensor.

We had early information that Sony would launch new products in June, which now has one day to go. The 58 flashgun may have been the only launch for June. A possible clue to imminent roll-outs may be that new Sony point of sale cabinets have space for products which the dealers don’t yet have! The 24-105mm f/4 G SSM has already been leaked but we can expect two more key lenses in the wide angle and medium tele zoom ranges. Rumours of a June 30th launch may apply to the Nikon conferences, not Sony.

My bet is that the first we may actually see of some new items for sale will be in the window of Foto Gregor, Cologne, around September 23rd. We shall be at photokina from the press day on September 22nd - watch this space!

- David

Increases in pixel count are often dismissed because to ‘double’ the resolution of a 6 megapixel sensor you would need 24 megapixels. Indeed, to double it linearly you would - but the human eye judges density of detail on an area basis.

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.

The introduction of a £399 (street price, RRP £449) DSLR with 14.2 megapixels – with or without a useful type of Live View – should have been applauded by reviewers. It’s the single most important point about the camera. No other DSLR approaches this image size and resolution at such a low price.

Our cover photo for the Spring 2008 issue of Photoworld was taken with a Tamron 70-300mm zoom costing less than £120 from most larger retailers or internet shops. The reputation of the lens meant we had to take a look at it, because the current choice in the Sony range is limited to one ‘kit’ 75-300mm costing £179, and the new 70-300mm G SSM lens costing £600.

CLICKING on key mapping points of a face, then adjusting some simple overlaid Bezier curves using movable anchors, it takes only a minute to load a typical headshot portrait into Portrait Professional.

Today I took delivery of a Sony 70-300mm f/4.5-5.6 G SSM lens. There is no doubt this is the best built Sony SAL lens I’ve handled (the CZ 135mm 1.8, 85mm f1.4 are a class above again). It weighs over 800g with its lens-hood, which is one of the most efficient deep tele hoods I’ve seen.

Now that there are five Sony Alpha DSLR bodies in circulation, with many owners of the original 2006 Alpha 100 considering a replacement, the differences between this ur-Alpha and the 2007-8 generation of Alpha 700, 200, 300 and 350 need examining.

USERS of the Nikon D3 downloading the latest firmware update have found information strings referring to the D3X and listing the file sizes the forthcoming camera will produce. The sizes match the pixel count of the Sony full-frame CMOS sensor due to be used in the ‘Alpha 900′ Sony full-frame body.

The launch of the Alpha 350, with its small 0.74X viewfinder, makes a proper eyepiece magnifier attachment an essential addition to the Sony accessory range. Olympus, Nikon and Pentax all have such magnifiers, which permit a full view of the screen for most wearers and make all the difference to the manual focusing and general comfort in composing shots. We tested two devices, one of them the highly affordable Seagull 1x-2.5x right angle finder, and the other Olympus’s ME-1 1.2X ocular magnifier.

The Sony Alpha 350 14.2 megapixel DSLR pioneers a new type of Live View, related to Olympus’s original Mode A of the E-330 where a beamsplitting arrangement allowed a video CCD to view the actual focusing screen of the SLR system.

Moving a DSLR - preferably without vertical grip because of the further imbalance created - to portrait format shooting on a small tripod ballhead produces an unstable arrangement where the head is stressed. The camera may sag unless the head is tightened, and if the lens is heavy, it may also unscrew itself from the normal tripod bush tightening. A L-bracket is the ideal solution for mounting your camera for a portrait session or any other situation where most of the images will be vertical.

There’s a lot of controversy right now about whether or not the image structure of the Alpha 700 files at very high ISO - mainly 3200 and 6400 - is as clean as raw processed results from other comparable cameras like the Canon 40D (does not offer ISO 6400), the Olympus E-3 (does not offer ISO 6400) or the Nikon D300. At the heart of this is the way different raw processors handle file conversion, and most specifically, the current performance of Adobe Camera Raw 4.3.1.

The Sony DSLR A200 is now on sale, following the end of Alpha 100 production. Although it is without any doubt the Alpha 100 replacement mentioned by Sony executives in October 2007, when they first revealed that the 100 was no longer being made, it is not an exact equivalent and represents a mixture of upgraded performance and simplified specification. Because it has gone in two directions at the same time, the A200 poses a problem for A100 owners.

Apple’s Aperture 2.0 is a tedious program to test, with all its creation of ‘projects’ and ‘libraries’, ‘albums’, ‘vaults’ and nonstandard GUI, and it isn’t fast in processing files or passing them to Photoshop (which it does in 16-bit form, just another step to reverse before saving as far as I’m concerned). However, it’s handling Alpha 700 raw quite well. And it does things differently, with non-destructive raw editing, stacks of image versions, and so on.

The latest full release - no longer Beta, and accepting previous C1 Pro activation keys for unlimited access but otherwise now on 30-day trial - of Capture One v4 now handles Sony Alpha 700 raw files and transforms high ISO rendering in comparison to the industry standard Adobe Camera Raw.

The prototype ‘Flagship’ Alpha DSLR, with its 24 megapixel sensor, may offer live view - almost certainly off the sensor. Sony prototype (it is still officially in that state) product photographs reveal what looks like an extra button or sliding switch - and at least one rumour states that this is definitely for live view.

NOT everyone will want the live view offered by the A300 and A350 - it does turn out to be more or less as we suggested, a secondary optical path adjacent to the eyepiece inside the prism housing. I’ll explain here exactly what the implications are, and why a future model - let’s call it the A500 - offering the 14.2 megapixel sensor without the live view may be worth waiting for.

In mid 2007, rumours of a 14.8 megapixel Sony sensor came from the usual Far Eastern ‘inside’ sources. As a full-frame Alpha model (the so-called 900) had been previewed at PMA 2007, it was possible this megapixel count related to full frame, or near-full frame. It now looks as if it may have been a leak of development for currently rumoured 14.2 megapixel (active) Alpha 350, which is an APS-C sensor camera.

We have a Photoworld day in Edinburgh on February 10th 2008, to which all Photoclubalpha registered members are welcome (it is strictly by prior arrangement, so please do not turn up on the day). It starts at 10.30am and ends around 4.30pm, and will be held at Edinburgh Photographic Society. There is a small fee for refreshments. Details follow.

Sony say that the Alpha 100 has a 230,000 pixel rear screen and the Alpha 700 has 920,000 pixels. What they don’t make entirely clear is how many individual R, G or B pixels are used to create each ‘pixel’ of the image (complete RGB). In fact the 920,000 pixel screen is VGA - 640 x 480 - in display resolution, which is 307,000 pixels not 920,000. What is going on? We took some macro images to show you.

A mention of 16mm Minoltas reminded me that a few years ago I found a perfect kit - without outer box or instructions, sadly - at an antique fair. A daylight developing tank for the film turned up in the closing-down stock from Konica Minolta’s warehouse. I decided they should really find a new home together via the normal eBay route, but before they went, a studio shoot was needed to record them for our virtual museum.

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.