Tuesday 12 June 2012

Intimate landscape (28)



Requirement
4 images

Purpose
To explore close order compsitions of nature

Technical learning
  • A common defintion of landscapes is that they go all the way to the horizon
  • Even so, some argue that more selective views, even close-ups, fall within scope (see Intimate Landscapes, by Eliot Porter)

Intimate Landscapes, Eliot Porter
Each simple, but compelling, compositions of the texture, colours and shapes of nature

Colorful trees.
Newfound Gap Road,
Great Smoky Mountains National Park,
Tennesee. October, 1967

Foxtail grass,
Lake City, Colorado. August, 1957
Redbud trees in bottomland,
Near Red River Gorge
Kentucky. April 17, 1968 

Rock-eroded stream bed.
Coyote Gulch,
Utah. August 14, 197y

Shadbush. Near Hillsborough,
New Hampshire. April 28, 1957

Stones and cracked mud.
Black Place, New Mexico. June 9, 1977

Exercise instructions
  • Produce 3 to 4 images of this type (i.e. no horizon)


Images and review

Molesey Weir, Surrey, July 12

Inspired by Toshio Shibata. The water acquires
a treacle like consistency yet still conveys
the violence of its rushing through the weir.
Taken with a ND 3 stop with smallest aperture
available on my 28mm/300mm everyday
lens at ISO 1000.
Rock strata, Sandymouth, Devon, April 12

This exposed section of cliff shows the erosion
of wind and wave on rock as well
tells part of the history of
how the rock came to be

Chopped wood, Alps, Apr 2010


Texture rather than colour is the
key feature of this neatly stacked pile of wood.
So B&W and sharpening the pixels
to bring out the saw marks. 
Rolling hills, nr Gittisham, Devon, June 12

Taken under overcast skies, the peaceful 
greens of the Devon hills


Poppy fields, Upavon, Wiltshire, June 12

Let me take you down
'cos I'm goin to...Poppy Fields For Ever

Sidmouth beach, just after a spell of rain, June 12

Seemed to capture the mood of life on the
beach better than a horizon shot, as
well contrast between shingle and
sand

Wheat field, Salisbury Plain, June 2012


Wind blown wheat,
motion blur to convey effect

Field on Salisbury Plain, May 2012


Rings of seedlings in spring


View from a lay-by on A 303, Wiltshire, September 2011

Again taken in overcast conditions, shows
the textures of farmed landscape, where
the planes fold into one another


Monday 11 June 2012

By the light of the moon (27)



Requirement
Several images

Purpose
To work out the exposure as well as to to discover how the quality of moonlight differs from sunlight

Technical learning
  • Very different to photographing the sun or in sunlight as well as the moon itself
  • Anything less than a full moon almost certainly will produce an unsatisfactory result
  • Light intensity is c 20 stops less than in sunlight (e.g. an exposure of ISO 100, f16, 1/250 in sunlight would translate in to   - ISO 800 (3 stops) + f2.8 (4 stops) + x minutes at 32 seconds
  • Nevertheless, bracket to allow for fluctuation in light levels and inaccuracy in reciprocity (of duration and light intensity)
  • Although the human eye under moonlight sees strongly desaturated colours, the sensor will pick up the natural colours of the scene, creating an 'unreal' scene

Exercise instructions
  • Shoot a scene under moonlight, using a tripod and cable release
  • Bracket shutter speed to finesse  exposure
  • Examine the results


Images and review

Exercise not attempted

Saturday 9 June 2012

Shooting the moon (26)



Requirement

1 image

Purpose
To develop technique in shooting successful images of the moon

Technical learning
  • 2 options for using the moon in a landscape: (a) include it in the image by shooting towards it and (b) use moonlight as an illumination
  • Brightness of the moon, like the sun, depends on the state of the atmosphere, including the presence of haze or cloud. Use a spot meter to measure brightness, although bracketing is a useful precaution
  • The urban light that often balances exposure of moon shots is generally absent in natural landscape after dark. So, shooting at dusk or dawn works better in showing some other landscape features and recognisable silhouettes
  • Use the most powerful telephoto lens available (preferably at least 400mm), otherwise the moon will appear too insignificant.
  • On the first night the full moon it rises directly opposite the sun at the time at which it sets. Every following night, it rises about 1 hour later (i.e. 24 hours/ 28 days of the lunar cycle)

Exercise instructions
  • Pick an interesting horizon line at full moon around dusk
  • Shoot at least one image of the moon


Images and review


Full moon over London Bridge

Full moon taken opportunistically with a compact camera. So, the definition of
the moon is weaker than I would like.
However, I like the composition, especially
the balance between the moon and
the buildings

Full moon over Lake Zurich, June 10

Again I like the composition except
its sharpness, especially of the moon
itself. Smaller aperture would have
improved the result.

Snow (25)


Requirement
Images showing different lighting conditions 

Purpose
To practice adjusting exposure and exploring contrast in snow conditions

Technical learning
  • As with beaches, snow scenes are at the extreme end of brightness
As a result, 4 key features
  • Shadow fill: powerful fill-in of shadows by reflected light 
  • Backgrounds: bright backgrounds so that many of the issues arising when shooting into sunlight, or bright reflected sunlit scenes, apply (see Project 20)
  • Contrast: varies between low in overcast, twilight conditions and high in direct sunlight
  • Exposure: needs, typically a +1 or +2 stop compensation, for the averaging around neutral grey of reflected light meters, else snow will be rendered a muddy grey colour
Exercise instructions
  • Take the opportunity of fresh snowfall and good weather to shoot as many treatments as possible of snow scenes.

Images and review

Fog





Overcast




Partly cloudy




Bright light



Friday 8 June 2012

Clouds and sky (24)

Requirement
6 to 12 images

Purpose

  • To explore the role that sky and clouds can play in composition
  • To practice managing exposure in different light conditions

Technical learning
In summary, clouds:
  • are the most visible component of weather
  • are significant in defining landscape mood 
  • are the most important element in creating the quality of daylight
  • come in several types (nimbus, cumulus, etc) and even more permutations
  • present a challenge to the dynamic range of the camera sensor
Working beyond the limits of your camera's dynamic range - measures
  • RAW: shoot RAW, expose for the sky, lighten the land in post-production
  • Bracketing: take reflected light readings of highlights and shadows separately, bracket images across the gap in exposure between the two, blend in post-production in PS or a HDR application 
  • ND Grad Filter: as with meter readings for bracketing, but use then use a ND Grad Filter of sufficient strength to compress brightness of sky and land. (0.3 = 1 stop, 0.6 = 2 stops, etc)

Crude reckoner of exposure change between cloud conditions (NB not between land  and sky in those conditions)
  • Heavily overcast - baseline
  • Moderately overcast - + 1 stop
  • Cloudy, but bright - + 2 stops
  • Thin, high cloud - + 2.5 stops
  • Heavy haze - + 3 stops
  • Clear sky - + 4 stops
Overcast conditions (i.e. the sun is not visible)
  • On the one hand, soft light produces generally shadowless scenes (except where one object casts a shadow on a close neighbour) and so drains the landscape of 'expression'. It reduces modelling of shapes, perspective and texture so making the image look flat.
  • On the other hand, soft light has 2 important uses: (a) it can clarify the detail of complex subjects, otherwise masked by shadows thrown in brighter conditions, and (b) it enables reflective surfaces to produce clearer images (i.e. without the specular highlights and glare from the sun).
  • Nevertheless, overcast conditions increase the contrast of tones between sky and land (compared to clear skies, the brightness of the sky falls less than that of the land). Consequently, subject to the dynamic range of your camera, if the land is exposed correctly, the sky will be burnt-out. 
Broken cloud
  • Often creates interesting, even dramatic lighting, especially when the weather is changing
  • Most unpredictable environment, however, particularly when (a) the sky has different layers or types of clouds, (b) conditions are windy and (c) when weather fronts collide
  • Must be prepared to react quickly to changing conditions
Clear skies
  • See Project 20 for the discussion of sun stars, silhouettes and reflections
Exercise instructions
  • Create 6 to 12 images in which the sky dominates with different cloud conditions
  • Ensure each image also works as a landscape image

Images and review

Stormbringer


Kilchberg, CH, 2010

Sun Ray


Kilchberg, CH, 2010
Fireball


Bushy Park, 2012
Meteor Cloud


Egetswil, CH, 2010
Vapour Trails


Chertsey Lock, River Thames



Deep Blue


Army Camp, Salisbury Plain, 2012

Wednesday 6 June 2012

Soft light (23)


Requirement
3 images

Purpose
To show how to use overcast conditions to best effect

Technical learning
  • Overcast skies soften the light falling on landscapes
  • Soft light favours particularly (a) rendering the colour green and (b) highlighting details that glare would otherwise suppress (e.g. detail in branches)
  • Typically, overcast skies are featureless, so consider (a) eliminating most of it by composition and/or (b) using a ND grad filter to darken.
Exercise instructions
  • Produce 3 strong images in overcast conditions

Images and review

Devon Greens


View near Honiton
Overcast summer's day
Wiltshire Greens


View near Widdington
Overcast conditions reduce contrast

Poppy field


Soft light brings out the detail
of the flower and stalks

Tuesday 5 June 2012

Positioning the sun (22)


Requirement
3/4 images

Purpose
Show how to shoot into the sun whilst keeping an acceptable level of detail in the rest of image.


Technical learning
Keeping some detail in a scene backlit by the sun can be achieved by:
  • Using a barrier, such as foliage, to shield the impact of the sun (adjusting viewpoint, up or down, side to side) to reduce its darkening effect on the rest of the image, and 
  • Placing the sun towards the edge of the frame with the area of greatest foreground interest on the other side.
Exercise instructions
  • Use a wide angle lens
  • Keep the sun to one side of the frame with the scene on the other side
  • Move the camera up and down and side to side to adjust the brightness of the sun
  • Take 3/4 shots with the sun obscured by different amounts

Images and review

Back garden on a sunny evening, September 2012


Well defined star
Fish eye lens 
(15mm), smallest aperture (f22)
Poorly defined star
Fish eye lens 
(15mm), widest aperture (f2.8)


Best defined sun star
Wide angle (28mm), smallest aperture (f22)
Poorly defined star
Wide angle lens 
(28mm), widest aperture (f3.5)
The larger size of the sun in the wide angle lens creates the more impressive star compared to the fish eye.




A view near Benahavis in Southern Spain, September 2010



More sunlight, darker foreground



More foreground detail
Best balance of 3 images: sun star
effect still maintained, minimal flare
(could easily be removed in PS) and
more detail in foreground.




The course emphasis on sun star effects seems overdone. Useful to know the technique. Yet I have limited interest in using it.


Silhouettes and Reflections (21)

Requirement
5 images

Purpose
Show how to make a successful image composed of 
  • the sun with star effect
  • an interesting reflection in water
  • black shapes of vegetation.
Technical learning
Elements of success for this type of backlit image are:
  • Clear sky
  • Sun relatively low in the sky
  • Use of wide angle lens at a small aperture (so tripod)
  • Water with an interesting reflection
  • Other landscape elements with compelling shapes in silhouette
  • ND grad filter
Exercise instructions
  • Pick a clear sunny day and a scene with water
  • Use your widest angle lens at its smallest aperture
  • Choose a moment when the sun is low in the sky
  • Seek reflections in the water and a clear interesting silhouette
  • Shoot image to produce a strong sun star effect, with simple composition that uses foreground reflections, with an ND grad filter, bracketed 5 times at intervals of 1 stop 
  • Pick the image that works best.

Images and review

Triggs Lock, Wey Navigation Canal 

Used a fish eye lens (15mm) to create
the sun star effect
Even though it has a fixed aperture of f2.8
its width is sufficient to create this effect


Sunday 3 June 2012

Sun Stars and Diffraction (20)


Requirement
6 images

Purpose
To hone technique when shooting into the sun, especially to create sun star effect

Technical learning


Shooting into the sun - 5 types of dramatic or abstract images

(1) Shooting directly into sun - silhouettes
  • Shooting into the sun creates sihouettes, i.e. the fore- and middle-ground is very dark, if not lacking in all detail on a clear day (see also Project 23)
  • Methods to reduce contrast/ increase details include: (a) use a ND grad filter, and (b) bracket across the dynamic range of the scene and then blend in post production
  • Silhouettes can be made more dramatic by using the sun (or moon) as the backdrop, but if this is the effect you want, bracket sufficiently (5 stops) to esnure the desired effect
'Super Moon', on 5 May 2012, as the
background for silhouettes
of figures on the hill


(2)  Shooting directly into sun - 'sun star' effect 
  • 3 requirements: (a) clear sky, (b) wide angle lens - haze and cloud diffuse the effect and (c) small aperture
Sun star effect
Tim Shellbourne


(3) Shooting at reflection of the sun - a variant of silhouetting
  • Easier to produce a sharply defined silhouette than shooting directly in sunlight, especially if using (a) a high viewpoint or (b) a telephoto lens for the object to fill the frame (or both)
  • Light reflected from water is particularly effective, as it partially diffuses light (the more uneven the surface, the more diffusion occurs)
Silhouette using indirect light
Kern. Justin's Photostream


(4) Off-axis shot with horizon visible - lens flare
  • Intentional use of mild flare to add mood
  • Flare will be visible through the viewfinder
  • It ocurs when non-image light does not pass (refract) directly along its intended path, but instead reflects internally on lens elements any number of times (back and forth) before finally reaching the sensor.

Creative use of lens flare
kirpi.it
  • If unwanted, flare can be reduced, if not controlled, by the length of the lens hood or, as a last resort, changing the composition (i.e. reduce extent of back lighting)

(5) Off-axis shot where a dark background throws up the lit edges of the subject
  • Use a dark background to rim light the edges of a near silhouette subject
  • This reverses the orthdox view of 2D images, where the edges are dark and the tones on the subject much lighter, enabling the eye to see the detail
Rim lit cloud gives impact
to image
www.wallpapers-free.co.uk

Exercise instructions
  • Pick a clear sunny day
  • Wait for the sun to be relatively low in the sky
  • Set up camera, without filters, low ISO, wide angle lens
  • Shoot 6 images: 3 bracketed exposures each with (a) the widest and (b) smallest aperture
  • Compare between series of shots the intensity of the sun star and tightness of the rays

Images and review

Molesey Boat Club, Summer 12

Used a fish eye lens (15mm)
to shoot this image of
the sun star and a pair
of oars at rest by the Thames
Used the tree to mask the
sun. Sun star is weak.
However, the gain is greater
detail in the rest of the image.