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27 October 2010

GenStat 13.2

The 13th edition of GenStat (formally version 13.2, after a service release) continues recent development trends, with broad based development of reach and function centred around an emphasis on biosciences, but plenty of appeal for broad scientific application.

This approach finds particular expression in a new menu, one of several progressive changes under the top level Statistics drop down, collecting tools for qualitative trait loci analysis under the heading QTL (Linkage/Association). This is more than an interface metaphor, though: the GenStat server stores and maps information about QTL data structures in a very intuitive and productive dedicated centralised space for common access by the tools grouped here. [...more...]

GenStat 13.2

The 13th edition of GenStat (formally version 13.2, after a service release) continues recent development trends, with broad based development of reach and function centred around an emphasis on biosciences, but plenty of appeal for broad scientific application.

This approach finds particular expression in a new menu, one of several progressive changes under the top level Statistics drop down, collecting tools for qualitative trait loci analysis under the heading QTL (Linkage/Association). This is more than an interface metaphor, though: the GenStat server stores and maps information about QTL data structures in a very intuitive and productive dedicated centralised space for common access by the tools grouped here. [...more...]

25 October 2010

Ear rings, and other archaeologies

When I posted "Spotmaticked", three weeks back, I got a surprising number of responses amongst which a common element was the same question – phrased amusingly by Julie Heyward in a comment to the post as ...why does your camera have earrings?

The answer lies in a discovery made with the Zorki which preceded the Spotmatic: that the split metal D rings to which camera straps are attached will, over time, wear away the body lugs through which they are threaded. A camera carried all the time* by those D rings shows considerable wear very quickly.

So, starting with the Zorki (already showing definite lug grooves), I adopted a habit of replacing the D rings with loops of strong braid covered nylon cord (originally, as you see, white, but later a less obtrusive olive green). The neck strap is fitted with snap hooks (originally metal, later giving way to lighter and quieter black nylon) which attach in turn to the cord. The cord wears instead of the lugs; I monitor the wear, and replace the cord regularly. With the exception of the LX (which has a different attachment system), it's an arrangement which I've continued and still use.

To start with, I attached split rings (the "ear rings" to which Ms Heyward refers) to the cord and clipped the strap to those. Later I switched to simply clipping onto the cord itself. The Spotmatic, which has not been carried routinely for a long while, still has the metal rings; recent bodies have only the nylon cord.

On an entirely different tack, Julie H mentioned in the same comment the groundhog teeth which she collected and, in two Unreal Nature posts ("Personal anthropology" and "Lost and found") documented last month. I am envious of those teeth ... not the teeth themselves, but what they represent: evidence of the passionate amateur scientist which she (and I, but in my case without the evidence) once was, in chrysalis form, before becoming imago. At the time of those posts, in the instant ache of recognition (not to mention vivid memory of bird skulls, lumps of congealed Eucalyptus camaldulensis or E globulus resin, recycling oranges...) I wanted very much to respond but the comments form was closed – so I'm very glad to do so here, now.


* And I do mean all the time. The first person to refer to my beautiful Spotmatic as “your growth” was Elaine Fisher. We were eighteen, I was dancing a slow number with her at the time, and the camera was getting in the way...

† These teeth, as it happens, date from roughly one year after the above mentioned dance with Elaine Fisher.

23 October 2010

Wikileaks

I don't have anything original to say on the subject, and certainly nothing worth stopping to listen to, but it's necessary (in however small and insignificant way) to stand and be counted ... so ... I applaud what Wikileaks has done today.

There is never any such thing as an unmitigated good but, despite all freely acknowledged reservations and messy grey moral fogs, I do believe that releasing of truth is, in this case at least, the best available route through ambient evils.

Wikileaks ORG: Recording Casualties of Armed Conflict

Iraq Body Count

...and, while I'm about it...

SIPRI

CCR

15 October 2010

Luis

We all have our heroes. Chilean expatriate photographer Luis Bustamante is one of mine, for his gentle, insightful and compassionate observations of life.

14 October 2010

11 October 2010

A voice silenced

Joan Sutherland, 1927-2010. Part of the multithreaded soundtrack to my life. RIP.

04 October 2010

Spotmaticked

Another inward trip down memory lane ... the same lane, though a little further along, as the one which inflicted "All for love of Halina" on the world, a few weeks back. Pauline Laybourn is still the prime culprit, but can share blame this time with Julie (Unreal Nature) Heyward and Luke (AcerOne) Palmer. In comments to that previous post, both Luke and Julie not only blatantly encouraged me but made reference to Pentax landmarks on their own memory lanes – a K1000 in Luke's case, unspecified in Julie's. For each of them, Pentax was a way station on a journey to somewhere else; for me it was an arrival.[1]

It's now 1969, I'm seventeen. Since the days of my pining over the Halina, and my pocket money imposed limit of not quite two photographs a day, I've now had two 35mm cameras: a Zorki 6 CRF (coupled rangefinder) and a Zenit 3M SLR. (Neither of them are shown here, and neither is still in my hands, but both deserve a deeply grateful salute.[2])I have a little part time income, I have been taken under the wing of the local Ilford Photographic importer who sells me short date film and chemicals at low prices, and as a result I am averaging fifteen or twenty frames a day, and can double that on special occasions (such as, for example, the day Suzanne Colley suddenly offered to pose for me...)

Despite all that, I'm still a long way from being able to fund the next step up: from the Zenit to a "professional" 35mm camera with access to a full component system. Especially as I've learned from the show so far that I want the largest available lens aperture. My infinitely patient parents are once again willing to carry the bulk of the investment, we are living in a low cost low tax economy where prices are well below European levels, but the Zenit will still have to be traded in.

What to buy? I will only have one bite at the cherry, and can't afford to get it wrong.

The top fashionable names at the time are Nikon (the iconic "F") and Minolta (specifically the SRT 101, used by W Eugene Smith). But there are other contenders – Mamiya's 1000DTL and the Canon FT QL being high on my list. I am lucky in knowing people who generously lend me all of these cameras for periods of real use so that I can see which suits me best.

I finally come down to a choice between the Minolta and the Canon. I travel with my father to a city 80km away where Andreas, a sympathetic photographic dealer, is offering us terms which can leave him very little profit (he sold me the Zenit at equally low margin, a year ago, and is accepting it back at more than I paid for it). Andreas is expecting us and has the two cameras waiting, ready for my final decision. He also has with them a third which I have never considered: an Asahi Pentax Spotmatic.

I don't at this time know, or know of, anyone who uses a Pentax, and I'm not very interested. But Andreas loads it with a 36 exposure cassette of HP4 and says, “Just give it a try for a couple of hours, have a coffee or some lunch, walk around the old city, take some pictures. Then bring it back here and I'll sell you whichever camera you decide.”

Andreas has been good to me, and never given me bad advice. so I am reluctant to reject his suggestion outright. To humour him, we walk around the old mediaeval city. I take photographs along the way. We get some lunch, and I photograph the staff and our fellow customers.

The Asahi advertising slogan at the time is “Just hold an Asahi Pentax”. As I take my first frame with the Spotmatic, I feel delight in my hands. I know, for the first time, what Henri Cartier-Bresson meant when he said that his camera became part of him. By the time we arrive back at Andreas' shop, I am besotted. I can no longer raise any of my earlier enthusiasm for the other two cameras, which now seem clunky and graceless by comparison.

Andreas insists on rapid processing, drying and contact printing the film, then waiting until I have inspected the results with a lupe, before I make any decision. What I see through the lupe does nothing to dispel my love affair; I know which one I want to go home with me. My only concern is cost; will such a beautiful, perfect thing be beyond the available budget?

But no; I needn't worry; the Pentax is actually less expensive than the original, less desirable alternatives. So much so, in fact, that purchase of a light meter which was to have waited for future funds could be brought forward to today as well.

Fast forward forty one years, and I still have both camera and meter. The meter (a Sekonic Apex) was my trusty workhorse until, as I've recorded elsewhere, it only recently had to be retired.

The Spotmatic still works perfectly apart from instability in its top shutter speed. Though other cameras have usurped its position as mainstay (more on that, perhaps, another time), I still use it for some things and feel that same rightness. Its black and satin chrome have, as you see in the photograph on the left, been painted green on one occasion, grey on another. There were good reasons for this at the time, though they are hard to explain now so I'll skip them. Its lens, a 50mm f/1.4 Super Takumar, has beautifully tactile visual/plastic qualities which I still value sufficiently to use it (with an adapter, in manual stop down mode) on my digital bodies for some types of work.

Pentax (as Asahi are now known, having renamed the company to follow the brand) Haven't always matched that beauty. The K1000 which AcerOne mentions was functionally a bayonet mount version (the Spotmatic used a screw thread lens mount), but somehow missed out on some of the grace. By choosing when to upgrade and when to stick, however, I managed to hang onto that handling delight over the years. When it seemed that Pentax were never going to produce a digital SLR, I wavered. I looked at Canon, Nikon, Sigma and other alternatives ... but I'm glad I waited: none of them sang in my hands as the Pentax (which eventually arrived) again does.


1. I'm not evangelising, here ... I don't believe that any make or model is better than another except for the person who chooses them ... what tools we choose to use is important to us, but not to anyone else. All that matters is what we do with them and that we feel at home with them. But I found my home in a place which they passed through. A bit like Shirley Valentine..

2. The Zorki, as I footnoted last time, came to me courtesy of generous, unstinting and unwavering parental support. I loved that Zorki, and still feel an ache when I look at pictures of it. It was what finally enabled me to explore contemporary photography and find my own limits. Through use of it, I ceased to be a child fascinated by photography, and became someone for whom the label "photographer" was part of my permanent self. But in enabling my growth, it also brought me to a place where I wanted to do things which it couldn't. In particular, an interest in science generally and biology in particular was another vital part of what I was becoming, and a CRF camera isn't well suited to either macro or micro photography. I managed a great deal using ingenuity and home made gadgetry, but there were limits. An inspirational biology teacher let me use a superb Alpa SLR on school premises ... a Rolls Royce, like the Leica and similarly out of even dream reach, but an example of what an SLR could do. So, it came to a choice ... and the Zorki was, with great misgiving, traded in against the Zenit.


  • Willy Russell, Shirley Valentine. 1986 (stage) and 1989 (film, Paramount).

02 October 2010

Just deserts

According to Richard Lederer’s unnamed student[1], deserts are defined by a climate "such that the inhabitants have to live elsewhere" and have to be "cultivated by irritation". Say the word desert to most people in the industrialised west, and they will visualise somewhere hot, sandy, and utterly devoid of any life except, possibly, Peter O’Toole and Omar Sharif striding (with or without camels) across photogenic dunes.

In the days when I was trying the patience of successive O-level geography teachers, we were given a more seductively precise and objective definition: annual mean rainfall of 250mm or less. That figure is still around, although it has generally been supplanted by more sophisticated relative concepts like relative moisture economy deficit (more water lost through evaporation and transpiration than is received in precipitation).

Generally speaking, the most widely used climatological classification systems go by distribution of vegetation, which both serves as an indicator of available water and decides the viability of other life. This approach naturally appeals to statistical data analytic bean counters like myself, though they do complicate matters by including temperature considerations. A desert, for my purposes here, is a region whose available water economy provides marginal (or nonexistent) support for life. It will usually be arid, but we won’t be too picky about semiaridity distinctions as many of the problems to be studied involve transition. It will often be megathermal, but not necessarily so.

Oceans cover about two thirds of the earth’s surface. Deserts account for roughly two thirds of what is left (and current trends, despite significant efforts at reversal, are towards net increase) so they are no small matter – either in themselves or in the computational challenges which they can present. It is not much of an exaggeration to say that only since the explosion of generally accessible scientific computing resources can they be realistically confronted at all. [More]


  1. Lederer, R., Anguished English : an anthology of accidental assaults upon our language. 1987, Charleston: Wyrick. 0941711048 (pbk.).