Steve's Progress with OCA

This blog is for the learning log for Steve Estill's progress in the study for the BA in Photography with OCA.

The first Module was Photography 1 - The Art Of Photography.
The second module was Photography 1 - Digital Photographic Practice - started in January 2012 and finished in May
For the third module see the new blog at http://moreocapnp.blogspot.co.uk/

Tuesday 23 August 2011

Exercise 33 - Colour relationships

Starting with the easy one – Red and Green can be found everywhere. In this case it’s our apple tree. 
 
The red – green ratio is about 1 : 1 and the colour looks pretty well balanced. The dimensions of the apple fit comfortably within the green of the leaves, so this defined ratio seems to work.

 For the orange – blue combination it’s off to the harbour again.

 
This boat with its bright mooring fenders was the final image I came up with. With the sun directly behind me the colours were really strong. The reflections enhance the image. This 1:2 orange: blue ratio seems to work well too.

 
The sketch was interesting in that the blues and yellows took up so little of the actual colours – the main constituent was black! There was a significant amount of brown too.

With the heather blooming on the moors this seemed to be the logical place to find the yellow: violet combination.

 
This clump of ragwort growing in the heather was just what I was looking for. It was quite windy so I had to use a fast shutter speed, with the consequent wide aperture and loss of depth of field, but I’m still happy with the result. The ragwort stands out from the heather, so maybe the 1:3 yellow: violet ratio is a bit off in this case. It may be because of the bright sunlight which has given more vibrancy to the yellow. It does still have a pleasing colour balance.
 
For the second part of the exercise I’ve used the garden, where the plants are those that among their other attributes have been chosen for their colours.
 
Yellow / Green



These grasses, taken with the sun behind them have produced what I think are a very pleasing image. The colours are adjacent on the colour wheel. I find the image really vibrant. The overall feeling is one of warmth – probably because of the high percentage of the bright yellow, which overcomes the cooler green.


 
Blue / Yellow
 
Again the colours in this Hydrangea are not complementary, but still work well. The colours are pastel, which helps to blend them together better. Having two colours from opposite sides of the ‘warm / cool’ sections of the wheel may help. I would have thought that the green in the background, combined with the blue of the flower would have created an image with an overall ‘cool’ feel, but the yellow in the image must have warmed it. 

 
Violet / Green
 
This combination of colours has resulted in an image which radiates ‘warmth’. How that can have happened with colours which are predominantly ‘cool’ surprises me. It could be due to the obviously bright sunlight, or the warm whites in the image. There’s also a pleasant colour balance here - Maybe it’s the pinkness of the ‘violet’ that works with the green, but I would have thought it violet / green overall. The pastel shades of the flowers blend together with the green background easily. I really like this image - you can almost smell them.

 
Orange, blue, violet, green
 
I enticed the fly to this cornflower by placing a little honey placed in the centre of the flower, which enabled setting up the macro lens on a tripod and waiting for the fly to arrive.
There are combinations of complementary colours in this image:
  • Red of the fly’s eyes with the green of the background.
  • Blue of the outer petals with the orange of the fly’s abdomen.
  • Violet of the inner petals with the hint of yellow from the honey.
The ratios of the colours don’t comply with those suggested by Von Goethe, but I find the image exciting. The mixture of colours and particularly the ‘zing’ of the green make this image ‘shout’

 
The sketch was different - I used it as a way to try out different watercolour methods – in this case Letraset water-based Promarkers along with the Inktense and water soluble sketching washes. I don't think my sketches will ever sell, but I'm enjoying them. It's surprising how much can be learned about an image this way.

So while there is some merit in using the suggested ratios of primary and secondary colours, it’s obviously not a hard and fast rule to follow. Neither is it necessary to always use complementary colours. At the end of the day, beauty is in the eye of the beholder and what works for one may not necessarily work for another. 
 
It’s yet another aspect of composition which needs to be considered when framing the image. One which I find more exciting than any of those studied so far.

Wednesday 17 August 2011

Exercise 32 - Primary and secondary colours


As the exercise is to produce images with colours that match those in the colour wheel shown in the course, I’ve copied that wheel as a reference – Personally I think the blue shown has a significant violet cast. This could be down to the printing or it may be the hue that is being aimed for. In the exercise I’ve tried to get the hues shown on this wheel.

 
I’ve used the cameras in three frame bracketing mode and always with a tripod. The camera modes have been, shutter priority, continuous high speed shooting and manual focus for the macro images.
 
Starting with Red I’ve used a Pelargonium which we’ve grown in the conservatory. I tried with other red sources (roofs, walls, other plants and flowers) but this was much closer to the red hue being targeted.

Under exposed by 0.7 step

Auto exposure

 Over exposed 0.7 stop
 
In this case I think the under exposed image has the closest match to the colour wheel.
 
For the orange source I’ve used an Oriental poppy which I grabbed between rain showers. I tried various other sources (brickwork, gladioli, lichens and sunsets) but this flower produced a hue which is nearer to the one in the wheel.

Under-exposed by 0.7 stop

Auto exposure

Over-exposed by 0.7 stop
For the orange I think the over-exposed image is closer to that in the wheel.

I tried,   evening primroses, hypericom and asters, but yellow lichens at the Wheal Martyn China Clay museum, St Austell, provide the images for this section:

 Under exposed 1 stop

Auto exposure

 Over-exposed 1 stop
 
The yellow in the underexposed image has the brightness required to match the colour wheel.
 
Still in Cornwall, the giant’s head in the Lost Gardens of Heligan is the source for the green images. I know there are several greens in the image, but the more dominant one – his hair – is closer the one in the wheel, which I feel has a yellow cast to it.

 Under-exposed 1 stop

Auto exposure

 Over-exposed 1 stop
It seems to me that the green in the under-exposed image more closely resembles that in the wheel.
For the blue set I’ve used our laundry basket. Cornflowers were close but not quite as good as this. I also tried using the sky, hydrangea, stained glass windows, stuffed toys and gladioli, but the laundry basket had the strength of colour I was looking for.

 Under-exposed 0.7 stop

 Auto exposure

Over-exposed 0.7 stop
 
I think over-exposed image has a closer hue than the other images.

The heather is in full bloom on the moors just now and has a violet which is close to the one in the colour wheel. Another gladiola had a close match, but I’ve already done that. I tried hydrangea, clematis, cotinus and orchids, but settled on these images. It was interesting to note that shooting into the sun produced different results from shooting away from it (as in these images).

 Under exposed 0.7 stop

Auto exposure

Over exposed 0.7 stop
 
The over exposed image works best for this section.

Using the selected images, they can form a new wheel, like this:

 
This was more of a challenge than I anticipated. It took longer than I thought to find examples which looked reasonably close to those on the colour wheel. There are so many variations within each of the six colours. It’s been an enjoyable exercise and I’ve learned that it’s not easy to find exact colour matches. The bracketing function of the camera has been really helpful for this and could be useful if the exact colours were needed (unless HSB changes in Photoshop was allowable). The effect of exposure is obviously another consideration when taking an image – it may conflict with other criteria (shutter speed / aperture settings) so a consensus may have to be arrived at.
 
The exercise has been very interesting. I’ve learned a lot from it. Obviously there are many ways to affect colours in Photoshop, but doing its good to do it purely in camera.