Sunday 21 November 2010

OCA Course; Assignment 2: Text

OCA COURSE

THE ART OF PHOTOGRAPHY

IAN GLAVES

504473


 

ASSIGNMENT 2:

Elements of design


 


 

As most of my education and working life has been heavily involved with the sciences, I found this art-orientated assignment a challenge, but then I suppose that's the whole idea!

The theme for my collection of images is "Trees". I live on the edge of the North York Moors Forest Park, so there are a lot of them about. Nevertheless, finding images that fitted the brief proved difficult on occasions. Most of the images are un-cropped, with minor adjustments of exposure, contrast, saturation and sharpening using Adobe Lightroom 2.


 

1.Single point dominating the composition: Beech Plump. This is a clump of beech trees sitting on its own in the middle of a large area of cultivated fields. I don't know the origin of the name "Plump" in this context, but that's what it's called. It dominates the area by being singular and slightly higher than its surroundings, and I thought it would be more dominant if left in shade, contrasting against the sunlit field in the foreground (potatoes with tops chemically burned prior to harvesting). I used a 28-135mm zoom on maximum telephoto setting, on a tripod.


 

2. Two points: Moors. I took this image about a year ago on a bird-watching walk. I thought at the time the cloud formation was interesting, but on second look the two trees on the horizon add perspective and scale to the image. There are also implied triangles here. I used a 17-40mm lens at the widest setting, with a polarizing filter to enhance the blue sky. It was hand held.


 

3. Several points in a deliberate shape: Cones. I really struggled with this particular exercise. I hunted high and low to find an arrangement of separate trees in some sort of recognizable shape, to the extent I became a danger to other road users! In the end, more out of frustration than anything, I "arranged" these cones found under a pine tree, into a rough triangular shape. Although the forest floor can be interesting, I fear this is a dreadful photograph and I really don't like it. I used a 50mm macro lens and a tripod.


 

4. A combination of vertical and horizontal lines: Scots pines. The forest edge exposes tree trunks and branches which are normally inaccessible due to the density of growth in the commercial plantations. The field, fence and gate, as well as some of the branches, give the horizontal contrast to the vertical trunks. Not a particularly spectacular image! I used a 100-400mm zoom at about 135mm, and a tripod.


 

5. Diagonals: Larch trees. Commercial forestry is only interested in growing tall and straight trees, so they are planted close together and progressively thinned out to reach maturity at about 40 years (it's a slow business!). These are mature larch trees. I tilted the camera upward, and rotated it to position the central tree across the frame. The sunlight catching the uppermost branches added a little colour. I used the 17-40mm zoom at its widest setting, but hand-held because of the awkward positioning.


 

6. Curves: Eucalypt leaves: There is a small experimental patch of Eucalyptus trees in the forest, which, as it turns out, aren't commercially viable. They produce nice pink leaves, so I arranged these to try and show a series of curves. I could have cropped a bit closer, I think. A 50mm macro lens was used, with a tripod.


 

7. Distinct, even if irregular, shapes: "Chameleon" eucalypt bark. I went into the Eucalyptus plantation with this exercise in mind, as I knew the bark had interesting patterns. Wow! The first tree I looked at, there was this Chameleon staring at me. What a gift. I've included another bark image to show what I was expecting to see. Both were taken with the 50mm macro lens, and a tripod, with good depth of field to compensate for the curvature of the trunk.


 

8. At least two kinds of implied triangle: Nursery, and Beech roots. Wykeham Forest has fields (called nurseries) that are used to grow seedlings for new plantations across the nations' forests. In fact, it grows about 11 million every year. They are sown in straight rows five wide to facilitate mechanical harvesting. Perspective has thrown the parallel rows into a triangle, which I assume, is therefore implied and not real. A 17mm wide-angle setting and a tripod were used. The beech roots are at the other end of the age spectrum, and some have been felled because they are a danger to the road by which they stand. The roots have a firm grip on the earth, and there are three implied triangles here, one either end with apices upwards, and one centrally with apex downwards. A 50mm macro lens on a tripod was used. There are also implied triangles in the "Moors" image, the trees being roughly triangular, as is the cloud formation.


 

9. Rhythm: Deepdale Avenue. I found it puzzling to try and differentiate between "Rhythm" and "Pattern" – even the dictionary definitions don't really help. I suppose rhythm is a regularly recurring collection of elements in groups, whereas a pattern is more a geometric repetition of one element. Anyway, they seem interchangeable to me! The regularly occurring ornamental trees along this road, and the shadows cast by those on the opposite side of the road, seem fairly rhythmical to me. As the only colour was green, it looks better in grayscale. This would also do nicely for "horizontal/vertical". I used a 100-400mm zoom on the 400mm setting, but no tripod because of the traffic!


 

10. Pattern: Cypress leaves. The repetitive tiny leaflets, and the repetitive branching made me think of pattern, rather than rhythm. Again, grayscale seemed more appropriate. I used a 150mm macro lens on a tripod.


 


 

Ian Glaves.

15.08.2010.

OCA Assignment 1: Contrasts

OCA COURSE

THE ART OF PHOTOGRAPHY

IAN GLAVES

504473


 

ASSIGNMENT 1: Contrasts


 

Pairs:

001-002 Black/White

These are two images from my collection of several thousand bird photographs, and were not taken specifically for this assignment. Blackbirds are commonplace, but the Mediterranean Gulls are rare visitors. We have up to 6 wintering in Scarborough, God knows why, as their name implies, they come from warmer climes!


 

001: Blackbird.

Camera: EOS 1D Mk3

Lens: Canon EF 70-300 DO zoom @ 270mm.

Aperture priority, F8, 1/100 sec., ISO 800, fill-in flash.

Image cropped, saturated 10%, sharpened.


 

002: Mediterranean Gull in flight.

Camera: EOS 1D Mk3

Lens: Canon EF 70-300 DO zoom @ 300mm.

Aperture priority, F8, 1/1600 sec., ISO 800.

Uncropped image, lightened 1.5 stops, sharpened.


 

003-004 Sharp/Blunt

Nails have a sharp end and a blunt end. These close-ups were taken on a tabletop in my garage. I like the "security fence" impression of the nail points, but I'm not sure the blunt image works.


 

003: Nail points.

Camera: EOS 40D

Lens: Sigma 150mm F2.8 macro

Aperture priority, F5.6, 0.5 sec., ISO 800.

Natural light, tripod.

The nails were mounted a couple of inches above a black cloth.

Original image flipped top to bottom, converted to grayscale and sharpened in "Lightroom".


 

004: Nail heads.

Details as for 003, but exposure 1sec, @F8 using built-in flash for a little sparkle.

Converted to grayscale and sharpened.

005-006 Broad/Narrow

Between the seafront (Sandside) and the old town, there are several narrow passageways with steps leading up to the boarding houses and fishermens cottages, often called "ginnels". I thought one of these would make a good contrast with the Valley Bridge, one of the wider roads in Scarborough. In photographing the passageways, I found old streets and buildings on the harbourside that I don't remember ever having been down, so I had a good time taking some snapshots for future reference. Valley Bridge used to be the suicide centre of the North until some benefactor paid for the railings, now a prominent feature.


 

005: Passageway.

Camera: EOS 1D Mk3

Lens: Canon EF 17-40 F4 zoom @40mm.

Aperture priority, F8, 1/125 sec., ISO 200

Hand held because of pedestrians present.

Image cropped, saturated 10%, sharpened.


 

006: Valley Bridge.

Details as 005, but lens @ 17mm.

Lightened ½ stop, saturated 10%, sharpened.


 

007-008 Many/Few

There are many pebbles on Burniston beach. A few get trapped in depressions in the rocks and erode holes with the action of the sea.


 

007: Pebble beach.

Camera: EOS 1D Mk3

Lens: Canon EF 28-135 zoom @35mm.

Aperture priority, F11, 1/400sec., ISO 200

Tripod.

Image saturated 10% and sharpened.


 

008: Pebbles on rock.

As 007, but lens @ 135mm and shutter 1/320 sec.


 

009-010 High/Low

I chose to interpret this pair as high and low viewpoints. The high shot is from Spa Bridge looking into the "hole in the road", South Bay, Scarborough. The low shot is from the opposite direction. There wasn't much colour in either scene, so I converted both to grayscale (click of a button in "Lightroom").


 

009: Hole in the road from Spa Bridge.

Camera: EOS 1D Mk3

Lens: Canon EF 17-40 F4 zoom @17mm.

Aperture priority, F8, 1/100 sec., ISO 200

Tripod.

Image converted to grayscale and sharpened.


 

010. Spa Bridge from the hole in the road.

As 009, but F8, 1/90 sec., ISO 100.


 

011-012 Large/Small

I live in a rural area with several farms around. Darryl is an agricultural contractor, and this is his (very) big tractor. They cost about £100,000. The toy copy is given away free with the big one!


 

011: Darryl's big tractor.

Camera: EOS 1D Mk 3

Lens: Canon EF 17-40 F4 zoom @24 mm.

Aperture priority, F8, 1/40 sec., ISO 200

Hand held (Darryl was in a hurry).

Saturated 10% and sharpened.


 

012: Darryl's little tractor.

As above, but taken at 40mm setting, and 1/90sec.


 

013/014 Sour/Sweet

I tried to avoid the lemon cliché for sour and used a cooking apple instead. It was turned into my favourite sweet- apple pie. At least enjoyed eating the subject!


 

013: Cooking apple.

Camera: EOS 1D Mk3

Lens: EF 50mm macro F2.5

Aperture priority, F7.1, 1/320sec., ISO 200

Natural light from kitchen window.

Image cropped, saturated 10%, sharpened.


 

014: Apple pie and Ice-cream.

As above, but with off camera flash via a reflecting brolly overhead.

Manual exposure F8, 1/125sec., ISO 100

Cropped to plate edge, saturated 10%, sharpened.


 

015/016 Liquid/Solid

I scavenged some mercury from an old sphygmomanometer for the liquid part of this, and had great fun chasing it around a dish, watching it break up and coalesce "Terminator 2" style. (It's toxic, so don't try this at home folks!). I like the idea of liquid metal/solid water, and tried to reflect this with ice cubes. I was my intention to build a solid wall of ice cubes, but I couldn't get them to stand up, so I ended up photographing a solitary cube before it melted. I'm not sure it works. I converted both images to grayscale. There is also a round/square contrast here.


 

015: Mercury.

Camera: EOS 40D

Lens: EF 50 mm macro F2.5

Aperture priority, F8 1/50sec., ISO800

015 cont.

Tripod

Natural light from window.

Image cropped square, grayscale, sharpened.

The mercury was dirty, and heavy use of the clone stamp tool in Photoshop Elements was required to clean up the dust.


 

016: Ice cube.

Camera: EOS 1D Mk3

Lens: EF 50mm macro F2.5

Aperture priority, F5.6, 2sec., ISO 100

Tripod.

Natural light.


 

Ferrybridge power station and Fairburn Ings RSPB Reserve.

This landscape was taken for a talk I gave on Birdwatching in Yorkshire, and contrasts the industrial scene of the power station with the tranquil greenery and water of the bird reserve. If the habitat is right, wildlife will co-exist with man's activities.


 


 


 

OCA Course: Assignment 1: Contrasts - images




For the main text for this assignment refer to the previous post.



Rural/Industrial Contrast: Ferrybridge Power Station and Fairburn Ings RSPB Reserve.


Solid/Liquid.



Sweet/Sour.




Small/Large.



Low/High.





Few/Many.




Narrow/Wide.




Blunt/Sharp.




White/Black.

Thursday 4 November 2010

OCA Course: Colour - Primary and secondary colours.


Primary and Secondary Colours: As I live in a very rural area, most of the colours I see relate to vegetation rather than man-made structures, so these images are local to the surrounding countryside, village or garden. Despite it being near the end of the flowering period, there was still plenty of early autumn colour. I cheated with the exposure variations in this series, as I modified the exposure "in computer", using Adobe Lightroom to vary the camera exposure by half a stop either way. I don't think the end result is much different.

1. Violet: Cyclamen. EOS 10D, 150mm macro lens, tripod.
Underexposed half a stop. (Despite owning newer DSLR's, I still like the 10D. It produces nice colour from it's 6 megapixel sensor because the photosites are relatively large - images are OK up to A3).

2. Correct exposure.

3. Overexposed half a stop.


4. Blue: Meadow Cranesbill: Canon S90 compact digital in macro mode. Underexposed half a stop. The increased saturation helps here.


5. Correct exposure.


6. Over-exposed half a stop. A bit washed-out.


7. Green: Convolvulus - yes I know the flower is white, but the leaves are green. and show some nice lines in the composition. Underexposed half a stop. Detail in the flower is better. EOS 1D Mk111 with 50mm macro lens.

8. Correct exposure.

9. Half a stop over- the flower is burning out.


10. Yellow: Rowan berries (yellow strain)- underexposed half a stop. EOS 10D, 150mm macro lens.


11. Correct exposure.


12. Half a stop overexposure - Perhaps enhances the succulent appearance of the berries.


13. Orange: Whitebeam berries - underexposed half a stop. Probably a bit dull. EOS 10D, 150mm macro lens.


14. Correct exposure.


15. Half a stop over exposure - the orange is more prominent.


16. Red: Virginia Creeper. This house in the village is covered in it (see previous posts). EOS 1D Mk111, 17-40mm zoom @ 17mm. Underexposure by half a stop renders the red too dark, probably because of additional underexposure caused by the bright sky.


17. Correct exposure, but still a little too dark.


18. Overexposure by half a stop - produces a correct rendition of the red creeper. I should have compensated by a stop or so when taking the shot originally.


Conclusion: There is probably no such thing as correct exposure, and modern digital image processing software programmes allow more experimentation to get a pleasing result without burning up expensive film. From this limited series, it seems slight overexposure benefits the reds, yellows and oranges, but slight underexposure benefits the blues and violets.

OCA Course: Colour - Control the strength of a colour




Control the strength of a colour: This is a stable door in Germany. It was brand new. I used a Canon EOS 1D Mk111 and a 100-400 zoom to image a section of it, and took the required exposures. It was a nice sunny day.

1. One stop overexposure: The colour and metalwork are a little "washed-out".


2. Half a stop overexposed: Acceptable.


3. Correct exposure as per camera meter. Good detail in metalwork, colour accurate.


4. Half a stop underexposed: The green may be a little more saturated, but looks dull to me.


5. One stop underexposed: Dull and dreary.


Conclusion: The correct reading from the camera meter looks best to me, which just goes to show that modern technology is quite good.

OCA Course: Implied Triangles


6. Mammo girls: I got fed up with relatives and friends not wanting their photograph taken so I roped in some of my colleagues from work. It was a rush job (these girls work their socks off, and, like many others, are the backbone of the NHS), so I used a digital compact with built in flash for what is essentially a snapshot. I arranged them around the mammography unit to give the triangle, but didn't account for the flare. Canon S90 on auto.


5. Little boxes 2: Ditto, but the other way up.


4. Little boxes 1: I really hate "flower arranging". My wife collects these trinkets, at least they have some intrinsic interest, but the photograph doesn't! I used an umbrella flash directly overhead to give even illumination. Canon EOS 1D Mk111, 50mm macro lens. Tripod.


3. Moorland sky: Much of the North Yorkshire Moors National Park is heather, with the odd tree thrown in. I was birding up here and this sky presented itself. The cloud formation in combination with a 17mm wide-angle lens gives a triangular perspective with the apex at the bottom. Canon EOS 40D, 17-40mm zoom.


2. Nursery: I live on the edge of the North Yorkshire Moors Forest Park, which is mostly commercial (Forestry Commission) timber production. They grow new trees from seed in these nurseries (about 11 million per year). They use mechanised techniques which result in perfectly straight rows, 5 to a strip. Perspective gives a strong triangle, apex to the top. Canon EOS 1D Mk111, 17-40mm zoom.


1. Shieldaig sunset: My wife and I were on holiday on the west coast of Scotland this summer. It was great apart from the midges, which were vicious. We had just emerged from the local hotel after having a superb meal, to be met by this superb sunset. The rigging of the yachts provide the triangles. Canon EOS 1D Mk 111, 17-40mm zoom.


Implied Triangles: It wasn't too difficult to find subject matter for this exercise, but it did prove difficult to get friends and family to pose. Strange how everyone hates their own photograph, or perhaps it's just me making a poor job of it!
This post may read from bottom to top. The last photo of the bale stack is a dilemma - is the triangle real or implied?