Archive for January, 2014

Peace as Police Stay Away

Sunday, January 5th, 2014


Feeling against the police was running high and was expressed in placards and banners including one referring to the well-known song

Perhaps the police actually read my stories on Demotix  (usually very similar to those I post later with more pictures on My London Diary.) Actually I know some of them sometimes do, because I’ve had officers making comments to me about things I’ve written in the past. And I’ve recently sent in a Freedom of Information request and am waiting to hear what – if anything – they have about me on their files, or rather those files they are prepared to admit exist (they’ve been caught out a few times lying over such matters.)

The previous week, after Friday’s protest I’d written

I found it hard to see any reason for the large police presence and stopping them walking into Montague Place as they wanted. It did seem an incredible and pointless waste of public money, and it resulted in more inconvenience to the public than if the event had not been policed at all.

But I think in this particular case I wasn’t the only journalist make the obvious clear, and perhaps even some of the police themselves may have realised that the heavy-handed policing of protests against a police presence on campus is counter-productive.


Other banners were less contentious – such as ‘Make Love not Student Debt’

So, unlike the previous week, where they came in force to London University, for the Cops Off Campus National Student Protest in exactly the same place they sensibly kept out of sight, and the protest passed off more or less peacefully, with far less mayhem than if they had turned up.


The Book Block with shields bearing the names of well-known titles for protection

There was a little damage to the gates of Senate House, and later, in an event I thought was probably staged for the press, to the doors into the entrance area of the building, when a few students attacked them using rubbish bins as battering rams. But there was no real violence and no attempt to occupy parts of the university, which would have broken the High Court injunction.


A clown mimes taking my photograph – and is caught by my flash

The protest was about a serious matter, and one which raises questions about the nature and purpose of universities that deserve proper debate, it was also an enjoyable and at times exhilarating event, with various groups enjoying themselves in their different ways, and ended with those taking part feeling a sense of achievement. It seems clear that the attempt by the London University management to stifle protest and freedom of speech and assembly has failed.

Two major issues remain to be settled; the future of the University of London Union and the proper treatment of low paid workers at the university who deserve decent conditions of work and pay. Until the management behave reasonably over these issues, protests will continue.


The book shields were useful in pushing against the gates

Photographically there were few problems, and it was largely a matter of being in the right place at the right time. When the students decided to go through the gates of the Senate House I had to move out of their way, and it was too crowded to get a really good view, though the fisheye did help a little.

There were some interesting faces in the crowd, and as well as taking pictures of the speakers I also took some of those listening to speeches.

After I left to go home there were further protests around central London by some of the students, where the police did show up (if sometimes rather late) including at the Royal Courts of Justice where the inquest into the shooting by police of Mark Duggan which sparked riots in Tottenham and elsewhere was taking place. It’s always difficult to know when to leave.

Cops Off Campus National Student Protest
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Human Rights & Syria

Friday, January 3rd, 2014

International Human Rights Day, 10th December, commemorates the day in 1948 the United Nations General Assembly adopted the Universal Declaration of Human Rights. This has become politically controversial here in the UK, as our government, while claiming still to be in support of the declaration is rather noisily and busily trying to find ways to get around some of its consequences. There seem to be some groups – such as prisoners and suspected terrorists – that they don’t feel qualify for human rights.


The Syria Peace & Justice group were told they can’t protest directly outside the UNHCR offices.
But this is a pilgrimage not a protest they told the commissionaire.

As Herman and Chomsky pointed out 25 years ago in their classic book ‘Manufacturing Consent‘ there are ‘worthy’ and ‘unworthy’ victims in the eyes of our politicians and dominant media, and many in power would like to restrict these universal rights only to those they consider ‘worthy’.

Given the political climate it perhaps is unsurprising that International Human Rights Day passes unobserved officially in the UK and those who rely on mainstream media would be totally unaware of it.

But the Syria Peace & Justice group chose the day to try to highlight the desperate situation in Syria and to call for an end to all human rights abuses there. They began the day by making a pilgrimage around as many as possible of the embassies of countries who are in some way or other involved in Syria, as well as the UN High Commission for Refugees offices and our own government offices and ended with a candlelit vigil on the pavement outside the Syrian Embassy. It wasn’t a huge protest – the group is a small London-based grass-roots one only formed a couple of months ago, which includes people of various nationalities and backgrounds united in their desire to see peace and justice. But many others would support their aims.

Because of the large number of embassies and other places involved the pilgrimage was split into two groups who met up in late afternoon outside the US embassy. This presented my first dilemma in covering the event, as I couldn’t split myself in two! I decided to start with the group at the UNHCR as it was the UN’s day, and to go with them at least as far as Downing St and the Foreign Office, before trying to join the second group who had started in Kensington.


The Syria Peace & Justice group were joined by several others as they posed in front of the Houses of Parliament.

At Downing St, one of the pilgrims had permission to take their letter in, but they arrived late, and had to wait for a suitable gap, and rather than waiting with her I went on with the rest of the group to take photographs outside the foreign office and in Parliament Square. From there I took the tube to Hyde Park Corner and rang the leader of the second group to find out where they were. They were heading for the Iraqi embassy, but by the time I got arrived there had already moved on. Two buses later I finally caught up with them outside the former Iranian Embassy which was closed by William Hague threw out the Iranian Embassy in 2011 after the UK’s embassy in Tehran was attacked and looted. It now appears to be a part of the Omani embassy.


At the Kuwaiti embassy they let someone in to deliver the letter calling for peace and human rights.

I walked down with the group to the Kuwaiti and French embassies and then left them to go to the US Embassy where I found the other group had arrived. Taking pictures there was a little tricky as it was now dark, and they were in a particularly badly lit area. I tried both using ISO 3200 and available light and adding flash, but neither worked too well with the pilgrims being rather spread out. You can see these and more pictures from earlier in the two pilgrimages at Human Rights Day Pilgrimages for Syria.

There was another event I wanted to cover a couple of miles away and I left them to take the tube there, returning for the candlelit vigil an hour and a half later outside the Syrian embassy.


Flash enabled me to bring out the Buddhist monk in a dark background area.

Candles provide enough light to illuminate a very small area, and the pavement outside the embassy had a little ambient light from the street lighting, but it wasn’t really enough to fill in the shadows. I got the best results by just adding a little flash fill, using ISO3200 with the candles as the main light source and a mix of flash and ambient in the shadow areas.


Peace pilgrim ‘Earthian’, a “citizen of the earth” made a peace pilgrimage to the Middle East on foot without a passport

I used the built-in wide-flash diffuser screen on the flash and also the small white bounce card, generally angling the flash head up at 45 degrees. Where there were subjects close to the camera on one side, I angled the flash away from them to reduce the coverage (even with the wide-flash adapter there is a lot of fall off at the edges with the 16mm.)

I worked with shutter priority, setting a speed of between 1/25 and 1/60s (with a certain random element from my habitual finger-fiddling) and adjusting both exposure bias and more often flash level to get the results I wanted, checking on the rear screen. The ambient levels varied considerably in different areas of the vigil, and the headlights of cars driving by also occasionally added a contribution.

More pictures from the candlelit vigil at Human Rights Day Candlelit Vigil for Syria.
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12 bits Good

Thursday, January 2nd, 2014

I’ve been wondering about noise and image quality and the differences between the various RAW settings available on the D800E (and D800). The most obvious differences are those of file size. With full-size FX images these are roughly as follows:

FX 14-bit lossless compression  40-48Mb
FX 14-bit lossy compression    34-38Mb
FX 12-bit lossless compression    28-34Mb
FX 12-bit lossy compression    24-32Mb

Actual file sizes using either form of compression depend on the subject, and any particular image will give a smaller file as you go down the list, with typically a 12-bit lossy file being a little over half the size of a 14-bit lossless one.

[It is possible to save files uncompressed, but doing so simply makes larger files that are slower to write and usually slower to load into processing software – hard to understand why Nikon provide the option and I assume it is a marketing decision – a useless feature that some reviewers would complain about if it was absent.]

So is there anything to gain from working with the larger file sizes? Opinions on-line vary, though as usual the most dogmatic are the least well-informed. But there are some whose opinion I normally respect who advise on choosing 14 bit rather than 12 bit, and I’ve been doing so for a while. But I’m no longer sure there is any point.

What changed my mine was reading a very detailed and rather mathematical paper, Noise, Dynamic Range and Bit Depth in Digital SLRs by Emil Martinec. It was written in 2008, over 5 years ago, but I think most of his conclusions are likely to still be true.

I can’t pretend to understand all of the maths, but I think I got the gist of it from the non-mathematical summaries. There are some rather surprising points made which perhaps go against the commonly held views on the subject.

At the time he concluded that “Twelve bits are perfectly adequate to record the image data without any loss of image quality” for the currently available cameras with just the Nikon D3 coming close to warranting the use of 13 bits. Any discernible difference would be because the slower reading of the sensor in 14 bit mode increases the accuracy of reading the values.

Things have moved on a little with current cameras, but I suspect that there is still little if any practical advantage in using 14 bit files.

Lower down on the same page, Martinec discusses the Nikon “lossy” NEF compression, coming to the conclusion that because of the noise unavoidably present in light, the compression actually results in no loss of visual information. If I understand what he says correctly, the loss is of the essentially random contribution of noise to the image rather than the true information present.

So I’ve decided there is little or no point in working in anything other than 12-bit “lossy” mode on either the D700 or D800E. Hard disks and large cards may be cheap, but it’s still worth cutting down on the space required, particularly with backups in mind.

There are also some other points of interest in the article, with a discussion about the ‘expose to the right’ rule and also on using high ISO.

Expose to the right is still a good rule, and “exposing to the right at the lowest possible ISO provides the highest image quality” but the reason usually advanced is wrong, and it is simply because this improves the signal to noise ratio.

As for high ISO, above a certain ISO you will get greater dynamic range by underexposing your raw files and correcting this in software.

I’m not sure how you decide at what ISO to start doing this, but on the D800E when working at night I’ve found in practice I get better results by sticking to ISO 3200 and underexposing. Its almost always necessary to underexpose at night by a stop or more in any case to get the effect of night.

But when working at low ISO’s I think he concludes that you should give correct exposure following the expose the the right rule for optimum quality.

There is more to the article than this (including some useful advice for camera makers) with a discussion of pixel size with a conclusion that will surprise some (it did me.)

But it isn’t easy going. A simpler article 12Bit Vs 14Bit Raw And Compressed Vs Uncompressed… Does It Matter? by freelance photographer Francois Malan has some real life examples that I think show fairly clearly there is little if any advantage in 14 bit over 12 bit on the Nikon D7000 (though there is a rather curious colour shift in the heavily underexposed examples.) His article was inspired by the more theoretical work of Martinec, to which he links.

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Resolutions for 2014

Wednesday, January 1st, 2014


Thamesmead – from The Buildings of London

Do I have any resolutions for the New Year? Most days I decide I’ve got to try and do at least something a bit better in future, but my record over the lists I’ve made at the start of some previous years isn’t too positive. Though I suppose it’s better to start with good intentions.

So here are a few things I’m going to try and do or do better in 2014

1.   Get back to working more with panoramic images, particularly on the River Thames and the Thames estuary.

I’ve never really come to terms with moving away from using film in panoramic cameras to using digital cameras. I need to concentrate on subjects and find ways to work which are less tied up with techniques.
I’m intending to work with just two basic formats, roughly corresponding to my earlier panoramas from the Horizon or Widelux and X-Pan cameras, but taken with the D800E.

2.   Try and panic less, think more and take fewer pictures.

All too easy – both with film and more so with digital to get excited and keep taking pictures rather than keep carefully assessing the situation.

3.   Make sure to keep a closer eye on the settings the camera uses in automatic modes and avoid messing things up.

In particular I’d like to avoid finding I was using silly slow shutter speeds before I’d taken lots of pictures with camera shake or subject movement rather than after I’d taken a lot of pictures. Auto-ISO can help here, though it doesn’t always work as I’d like.

4.   Check my lenses are clean more obsessively

Ruined too many pictures last week on a longish walk with one of my sons because there was a greasy fingermark on the lens filter, which produced flare that hardly showed up in images on the screen on the back of the camera but is annoyingly obvious when you view the images on the computer screen.

5.   Cut down on equipment; carry less and sell things I no longer use.

Perhaps there are also more things I can do with the Fuji cameras rather than the Nikons to ease the load on my shoulder. And some of the old film cameras I’ll never really use have appreciated in value with current fads among some amateurs for film. It’s unlikely to last, so its time to cash in.

6.   Learn how to use more of the settings etc on the D700 and D800E

I began this today, and  think I have managed to sort out  what the four shooting menu banks on the D800E are meant to do. Basically they retain some of the shooting menu settings you had before you switched the camera off or changed to a different bank.   Its a feature of limited use as it doesn’t allow you to save a setting so you could start at the same configuration each time you open a bank, and because more of the settings you might like to store aren’t on the shooting menu.  There is a similar set of banks for the Custom Settings menu also.  I’m sure some users will find these useful. I’d always looked at them and thought they would be useful if I found out how to use them, but somehow hadn’t got further than being totally bemused by the manual before today. It’s been rather a disappointment to find out what they actually do, as almost all the things they store for you are those I’d probably set the same in all four shooting menu banks.

7.  Get on with scanning my work from the 1980s and start publishing my major project on London’s Buildings.

One of the first things I put on line back in the 1990s was a site ‘The Buildings of London‘ from a project I worked on for around 15 years. It is still on line, more or less as I first put it there in 1996, with a few more images I added the following year.

8. To republish some of my earlier books as PDFs with more pages and larger images.

My books on Hull and the Lea Valley both contained pages with 4 or 6 images printed rather small, mainly in order to keep down costs of these volumes. Although PDF versions of these books are available, they currently still contain small images of many pictures, following exactly the book layout. I hope to republish these as PDF only versions in which all of the images can be viewed at a reasonable size.

The Hull book in particular should be of added interest since Hull is to be the UK City of Culture 2017, and I also hope to make this work more readily available on the web in advance of this.

And finally I hope as ever to take better pictures and write more interesting posts here!  Let’s hope that the new year, 2014, is a good one for us all. Happy New Year!

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