Showing posts with label Assignment 2. Show all posts
Showing posts with label Assignment 2. Show all posts

Friday, 22 November 2013

Tutor's report : Feedback on Assignment 2


Overall Comments
Things are moving in the right direction.  I note that you are trying to find themes to link your image making for the assignments and I whole heartedly approve of this approach.  I would suggest that you think about the different ways you can do this, the possibilities of more conceptual themes some of which I indicate in the annotations but to reiterate, colour, mood, emotion, can be as much and sometimes more of a theme than location or absolute content.
A creative interpretation of the briefs, so long as the main aims are covered, is very much favoured by all us tutors and the assessors where possible and can sometimes help you to develop you own vision much more than taking a more literal approach to the briefs.
 
Feedback on assignment
In very many ways this has been a successful assignment.  The images you have come up with, particularly in part one, are all of a good standard in just about every way and although you have not produced a set of images on a single theme, as you intended at first, there are some themes emerging here and you might like to sort them in different ways to see what themes you can find.
I think that you have covered much of the intentions of the brief and the following remarks are intended to help you in the future rather than suggesting ways in which you might re-work the current set...though if you feel it useful to re-work any of them in light of these comments, re-shooting or whatever, do so and include the results and your thoughts on them with the assignment when going for assessment.  Re visiting and re-working assignments in light of tutorial input and future knowledge is always credited by the assessors and, rather more importantly, a valuable learning technique.  Of course you should always indicate what is re-worked and reflect on the results.
 
 



P540 amended 
P540 





 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
P540 – you comment that you are not really satisfied with the way your image captures the intrigue of the Lanes.  I thought about the idea of a narrow and tall lane and cropped accordingly...what do you think?  Actually your image doesn’t miss by much if at all.
Like the amended version....the narrower  version does capture the feel of the Lanes  better.

I see a post on your blog concerned with shooting RAW vs jpeg.  I am not sure what conclusions you came to but equally I am not sure that you understand the difference so I hope this is not simply telling you things that you already know!

Raw images are simply the unprocessed information captured by the sensor, some information such as selected white balance is passed on but the image is ‘as is’.  All cameras, whatever the output, in fact capture a raw image but if jpeg of tiff or whatever (not the proprietary raw output though) output is chosen the camera applies post processing of a variety of sorts depending on the settings chosen by the photographer before compressing the image.  The original, unprocessed image cannot be obtained from the jpeg as the information and pixels are deleted.  Therefore it is generally considered more sensible for the photographer to shoot and output raw images and apply their own post processing rather than rely on some generic answers dreamed up by the camera designers.  This allows for a variety of different post processing solutions to be tried and at different times, leaving the options open.  Obviously this assumes that the photographer downloads and stores the raw images for posterity rather than deleting them after initial post processing, rather in the same way that film photographers will store the negatives for future reconsideration.  It is inevitable that the raw image looks different from and often much worse than, a jpeg of the exact same subject if looked at before processing in a program like Lightroom, Camera Raw or the raw conversion software that the camera manufacturer issues with the camera.

You should answer the questions I ask in my annotation, or in the tutor report in your learning blog.  They are put there to make you think about it and not so much for you to send me answers.  If I want a direct answer I will say something like “Let me know what you intend etc....”  I want to encourage you, and all students, to use their logs and blogs as a vehicle for this sort of thinking, musing and exploration.

I am not convinced that the module notes have entirely explained to you the way that a light meter works so I will try to give a brief outline of what I think are the important considerations.  The problem that a meter is trying to solve is, of course, what exposure we should give the sensor, film or whatever.  Given that all subjects are different some sort of baseline needs to be establishes and in the days of monochrome photography the solution was based on tonality and this seems to work just as well in colour and digital as well as analogue.  So what to do? Measuring the absolute amount of light reflected from a particular subject is fine but complex and difficult to interpret so it was decided to pick a reference colour and tone and this was (to be a bit over technical) 18% reflectance neutral grey, usually referred to as ‘mid-grey’ because although it only reflects 18% of the light falling on it it looks about halfway between black and white to our eye (Logarithms and things enter here!)  So all light meters assume that they are looking at mid-grey and suggest an exposure that will render the subject as such.  This means that if you take a spot reading off a white surface the exposure will be too little to render it as white in other words it will under expose it.  As it happens (well, this was a part of the decision to use mid-grey and the particular sensitivity range of light sensitive materials in reality), an average, naturally lit scene (the sort of thing that is most often photographed in fact) averages to mid-grey (a tonal range of about 127:1 and so on) so pointing a light meter in the general direction of the scene and taking in as much as possible (and average reading) we tend to get an acceptable result.  However, we want to be able to do more than get just an acceptable result and so all sorts of systems of exposure estimation have been devised over the years and the one that has been most often adopted and abused to be honest, is the Zone System of Ansel Adams.  This can be extremely comprehensive and complex and the three volume series of book he wrote on the subject of exposure (The Camera, The Negative and The Print) have become something of a holy text for some photographers and go well beyond the current discussion.  However there are a few gems to be extracted that can help in explaining how to judge exposure in every day situations.  His splitting of the scene into up to ten tone ‘zones’ from pure white with no detail (pretty much the point of highlight clipping in our day) to pure black with no detail (the point of shadow clipping) is not a bad way of thinking about a subject.  So if you look back on the way you took your readings in the light of this information you might be able to be more specific in understanding how you got the results that you did.  And what you might have done to either make your life easier or simply been more predictive of the results.  It might help to make sense of some of my comments and questions.  I have included a link to one of the many sites that discusses the Zone System in a supposedly simply way, take a look and see what you make of it. 

Explain in you blog why you chose the particular points you did to measure and In the light of the above, whether they were the best to achieve the results you were after.

You have used the lighting to draw the eye to the elements in the image that you want the viewer to concentrate on, the main point of interest, what Barthes (see suggested reading) might have termed the punctum in many ways. This has been successful and is a very worthwhile technique to use but you should also consider using it in conjunction with, or on occasions to substitute it with differential focus.  By this I mean focusing specifically on your main point of interest often throwing the other elements more or less out of focus.  With modern small sensor cameras the depth of field is generally quite large so that the point of absolute sharp focus may well not be that different from the rest of the image but it can be enough to work almost subliminally and pull the eye in.  The depth of field is dependent on focal length (the longer it is the shallower is the depth of field); the aperture (the wider the aperture the shallower the depth of field) and the point of focus (the nearer it is the shallower the depth of field) so even with a crop factor of 1.5 or whatever we still have some control over it.  Look at your images and discuss in your blog if and how you could have used differential focus and/or depth of field control to make your images even better.

I am pleased to see that you seem to be using the histogram and so on to evaluate the success or otherwise of the exposure but it can be all too easy to simply concentrate on the info regarding clipping and ignore the rest of the placement of tones.  Quite often we are better to let one or even both ends of the tonal range to block up in order to arrange the important tones where we want them and it is important to get used to looking at different colours in terms of tones, the spot meter setting can help here.  A yellow can look lighter than a blue of the same tone!

 
Learning Logs/Critical essays

Your blog is coming along reasonably well. I an glad to see that you are recording your visits and so on not just the exercises.  However I would like to see you using the blog more like a free ranging journal, recording you thoughts, reflections, questions and so on about all sorts of issues that inping on your study and photography. 

Perhaps if you think of it as having a sort of conversation with yourself about your engagement with photography and the arts and life in general (it doesn’t have to be Proust length!) you won’t go far wrong.

Happy to give this a go now that I have a feel for what is needed here..

Suggested reading/viewing

Have decided to set up a different part of the log to keep all suggestions received together with any comments that I want to make about what I've read etc..

Barthes introduces us to some interesting ideas about the way our attention is affected by photographs (amongst much else) in:
Barthes, R., 1993. Camera Lucida: Refections on Photography. London: Vintage Classics.
Take a look at this site


for more information on applying the Zone System to digital photography, it might be more information than you think you need but information is never wasted.

 

 

 
 

 

 

 

 

 

Friday, 2 August 2013

Assignment two : Seeing like your camera



This assignment requires the production of a set of photographs that demonstrate that the student can pre-visualise how their digital camera 'sees' a scene. All the photographs are shot in high quality JPEG with no post-processing. There two parts to this work:  Part one which requires 12 images -  three for each of the models chosen - and Part two where on of the models is re shot to make the scenes low contrast.

Part One


1 Backlit scenes



P530: f4.5 @ 1/1250  ISO 200  -1exp.   35mm AWB
This street caught my eye when walking to my OCA study visit in London. It was a sunny day, the clouds were moving very fast and I had very little time to capture the scene. Nor did I have my Canon 500D with me only my IXUS 210. That said, this was too good a scene to miss. I wanted to bring out the amazing shape of the building on the right hand side and the reflections in the glass opposite. I used evaluative metering as there so many different light sources which came out as f4 @ 1/1000 . I decided to adjust the exposure   since I felt the image would likely come out too bright  and finally settled on f4.5  @ 1/1250  -1exp. What made you choose this exposure?  Was it and educated (or not!) guess or was there a logic to it
I like the result, the small figure in the picture draws the eye in and I can live with the small amount of clipping.





P531: f8 @ 1/125  ISO 1600 28mm AWB

I used spot metering for this image and focused on the lighter early morning sky. The reading came out as 1/125  @ F8 and I took the image at this setting.

Is there any other way you could have metered the light to get a guaranteed silhouette of the statue?
I chose to have the row of military flags leading up to the statute of the Marine offset by the everyday street lights lit to the right i.e. the calling offset by the reason for it...The final image came out darker than I saw it which was what I was expecting given the angle of light ( low and off to the right ) but lighter than I reckoned the camera would actually reproduce it. I did not expect to be able to see the colours of the flag.


Why do you think this might be?



P532: f14 @ 1/100 ISO 400  -0.7exp.  38mm Daylight WB
This image of the Royal Pavilion in Brighton (P532) was taken in the middle of the day in very strong sunlight.I wanted to taken an image that accentuated the interesting architecture and noticed the sunlight glinting off some of the domes which became a starting point for me. What I wanted to achieve was a capture of this sunlight combined with an almost silhouette effect to highlight the shapes. I was not sure how to meter the scene so tried partial metering
 focusing on the off white stone work and sky with the light coming in from the right. It metered at 1/400 @ F11 which I altered to f14 to achieve a little more detail and then reduced the exposure by -0.7 to darken the stonework. The image has not been processed other than being cropped to improve the composition. Again I was expecting the camera to see the image darker than it actually did as you can see some detail below the dome which I did not expect to be visible to the extent it is.

Why do you think the camera produces a lighter image than you were expecting?
That said, I think the light and dark shadow contrast on the dome does enhance the detail of the dome which was what I was looking for.


2 Early morning



P 535: f7.1 @ 1/400  ISO 100 -1exp. 27mm Daylight WB

The Millennium Tower in Portsmouth is very much an iconic landmark at Gunwharf Quays. It towers above the quayside, a dazzling white image against the sky. Here I wanted to catch the effect of the sun rising here i.e. any change in colour and gradually the colour of the tower changed from a grey white to a very faint pink to this golden white colour. Again I used spot metering focused on the highlight area of the tower as a starting point. Seeing this to be 1/400 @ f5, I decided to shoot the picture one stop underexposed. To heighten the dramatic nature of the building, I chose to shoot the tower from below looking up and diagonally across the frame - a diagonal emphasised by the shadow of a flag at the bottom right. I hoped that the camera would reproduce a dramatic contrast of colour and in fact, the sensor renders it darker than I was expecting but for all that I feel pleased with the end result. The shadows emphasise the architectural design and line well.




P536: f22 @ 1/5  ISO 100 -1exp.  49mm Daylight WB

For this image I used the spot meter focused on the sky with the sun rising behind and to the side of the lighthouse. The reading came out at 1/40 @ f5.6 with some clipping. I wanted to have the lighthouse stand out as almost a silhouette to emphasise the colour of the sunrise so I reduced the exposure by one stop to darken the image. The final image produced by the camera had a darker blue for the sky than I saw when looking  at the scene with the naked eye though this did enhance the sunrise oranges. Image was cropped.



P537: f9 @ 1/400  ISO 100  18mm  AWB Cropped
This image was taken just after 7am. Spot metering was used focusing on the white hut and came up with a reading of 1/250 @ f9. I took an image at this setting but given the high levels of contrast I was seeing I was not surprised to see some clipping. By increasing the shutter to 1/400 I managed to reduce the clipping with the resulting image above. I deliberately composed the picture to frame the apartments over the water within the silhouetted jetty. With hindsight I think a smaller aperture than f9 would have been better giving more depth of field and allowing some of the detail of the apartments to be seen.



3 Dappled scenes




P533: f6.3 @ 1/80  ISO 100  55mm  Daylight WB Cropped
Spot metering was used for this image using the light playing on the plums as the metering point. This came out as f6.3 @ 1/80 which I then used for the image. I cropped the photo a little from the top to improve the composition allowing the eye to travel down the main stem to the weighty ripening fruit without too much distraction.



 
P542 : f4 @ 1/125  ISO 100  -1 exp. 5mm WB Daylight 

My eye was drawn to sunlight playing on this brushwood / log hide. There was a wide range of constantly changing light sources given it was a cloudy/ bright breezy day so I felt I was more likely to get a sensible reading using a pattern exposure reading. I took a picture using the reading indicated ( i.e. 1/40 @ f4 ) and then changed the setting to get nearer to what I was  actually seeing with the naked eye but to reduce the clipping that was apparent in the first image. P542 is the result. I chose this angle of shot to have the tree shadow on the ground lead up to the sunlight spot on the hide and then draw the eye beyond to the sunlight path through the woods. I also like the light catching the tree trunks  in the background. This shot was taken with a Canon Powershot SX40 HS.






P541: f 18 @ 1/25  ISO 100  +0.3exp.  46mm  WB Daylight
For P541 I used spot metering focusing on the white beard of this garden gnome. It was a windy day which meant that the dappling was a movable feast. I wanted to capture the detail of the gnome's face and felt the dappled light falling on him did the trick. However, conscious of the likely problems of reflected light coming off his face I altered the camera's setting from the original reading of 1/40 @ f5.6 to 1/25 and over exposed the shot by 0.3.
The result was darker than the scene I saw with the naked eye and a little darker that I thought the camera would produce it following the changed settings.



4  Street scene






P538: f5.6 @ 1/1000  ISO 100 +0.3exp.  30mm AWB Cropped

I homed in on the white wall of the public house here on Spice Island, Portsmouth using spot metering. The reading was f5.6 @ 1/ 640. Since the sunlight was very strong, the shadows dark and wanting to prevent the image coming out darker than I was seeing it, I chose to use bracketing to adjust the exposure. My instinct was that a slight over exposure might work and  in fact this did render an image very close to what I was seeing here.




P540: f13 @ 1/80  ISO 400  -1exp.  21mm WB Daylight

It was quite a challenge to photograph scenes in the area of  The Lanes in Brighton. At midday the narrow passages were a very dark contrast to the bright sky above and the scene constantly changed as people wandered through window shopping. I tried spot metering at first but found it difficult to get a setting that produced the right balance between dark and light with enough detail to make the image interesting. I opted for partial metering in the end given the various areas of differing light . Based on a reading of f9 @ 1/80, I then dropped the exposure by one stop to avoid too bright an image for what I needed here.
The end result is near to what I was seeing but perhaps a shade darker and still had some highlight clipping. I like the figure looking out towards the camera in the pool of sunlight which draws the eye in and the light catching the flint wall but try as I might I could not quite capture the intrigue of the Lanes suggested by the play of light and dark shadows and open patches of sunlight in the passageways.





P539: f10 @ 1/200  ISO400  -0.3exp.  18mm WB Daylight Cropped

In P539, I used pattern metering to provide a reading. This came out as F8 1/200  and I reduced the exposure by -0.3 stop to counteract the bright light flooding down into the passage way as I wanted to reduce the shadow sufficiently to see the activity in front of me. I cropped the image to provide a more intimate composition. I like the compositional contrast between hurrying shoppers and the still couple looking into the interior of the pub obviously sizing it up for lunch... 


Part 2
 
 
For this part of the assignment I chose to return to the early morning images taken along Portsmouth's shoreline. The idea here being to  reduce the contrast or maybe even make hem low contrast scenes. Thinking about the variables  over which I might have some control e.g. the weather, I decided that maybe cloudy or rainy weather could be helpful here since changing the lighting of the composition by moving around the subjects was restricted by their location. I went out on a very wet, gusty morning with the high winds whipping the dark clouds across the sky at a rapid rate. 
 
 
Millennium Tower
 


P543:f10 @ 1/160  ISO 100 28mm AWB

 I was not surprised that this image came out almost devoid of colour as there was actually very little colour in the scene. The sky was almost uniformly a white grey - whiter than the tower. The spot meter reading of the sky came out as 1/160 @f/9. I used bracketing for the first three images and then opened the aperture to f16 ( too dark ) and then reduced to f10. The final result is a flatter more bland image with little crisp shadow definition - less contrast than the image taken in early morning sunshine where the shadow lends to the dramatic thrust of the building.
 
Lighthouse
 
 

P544: f8 @ 1/80 ISO 100 54mm  WB Cloudy
 
 

This image was taken in the pouring rain with a cloudy bright sky. The meter reading came out as 1/60 @ F7.1 but  while this produced less contrast, the picture was dark without the enhancement of a sunrise to provide interest. Changing the setting slightly kept the reduced contrast but added in some detail i.e the various shades of stone and brickwork but to my mind the result is a flat picture. I prefer the previous picture which while backlit by the sunrise ( i.e. no detail of the brickwork ) gives a crisper image.
 
Jetty 
 



P545: f8 @ 1/100  ISO 100 25mm WB Cloudy
 

Still raining here at the jetty with a cloudy sky as a backdrop. The colours are more muted here with more detail being revealed on the jetty with the terracotta pot being visible and the colour of the high rise flats more prominent. I prefer again the image with the crisp shadows and silhouette. 

Hindsight is a wonderful thing and having now reworked three of my original images using weather conditions to help reduce the level of contrast, I realise that this was not as successful as I had imagined. Had I had more time, I think I would have revisited the three sites in similar weather to the original pictures to see how adjusting the composition might have worked better.



Assignment 2 : Seeing like your camera - preparation


This assignment is all about high contrast scenes and as such has warranted a good deal of thought as to what, where and when to shoot the images. Another factor was the requirement of Part two of the assignment requires me to select one of the four chosen situations and photograph the same images in  a low contrast situation. I've decided to go for the following situations :


  • Early morning landscapes
  • Backlit scenes
  • Scenes with strong dappled light
  • Street scene in the middle of a clear, sunny day

My first instinct was to try to achieve some coherence to the assignment by choosing a theme that the four modules could illustrate. Given that the assignment required a reworking of three of the images, I needed to ensure that wherever I shot the images I would be able to easily return to the location. I decided to look at a Portsmouth theme as this would likely provide street scenes as well as seaside / waterfront locations within easy reach by car. I was also mindful that the weather would be playing a key role here given the lighting needs and given our summer weather, I began monitoring the local weather forecasts with far more interest than usual.

My reconnoitring trips made me realise that there were no suitable street in the city which would give me the conditions I needed for the street scene. A visit to Chichester where I thought that I might get both street locations and opportunities for dappled light ( thinking here of the Cathedral interior and cloisters ) again proved fruitless. The dappled light scene was easier to resolve than the street one given I decided to look at our garden and the local countryside where I go walking. For the street scene I decided to visit Brighton's 'Lanes' and keep my eyes open on a scheduled theatre trip to London.

So, the end result here was an abandonment of a them for the assignment and a concentration on location and  lighting to provide the photo opportunities needed.