Showing posts with label Tutors comments. Show all posts
Showing posts with label Tutors comments. Show all posts

Wednesday, 19 September 2012

Tutor's report : Assignment 4 - Applying Lighting Techniques



Here are my tutor's comments on Assignment 4 :


Overall Comments

 
You demonstrate a very good understanding and approach to lighting in this assignment and, following your thorough preparation through the exercises for this part of the course, and additional experimentation prior to the assignment, you chose to use (for the most part) artificial lighting for this set of images.

 
The object you chose, a small terracotta pot, small and mobile, has the potential for some interesting studies, as well as presenting a technical and creative challenge.

 
You explore each element in a well informed way in this set of eight images, and your supporting documentation provides a clear insight into your thinking, and reflection on the outcome. 


You don’t mention in your reflection, or in your Blog, if you carried out any specific research for the assignment, and I think it’s always worth doing this, especially when you’re working with a new technical area. One of the areas that you might have considered would be lighting for advertising for example, where a good deal of though goes into the production of the ‘pack shot’, the image that defines the product and brand.

 
Feedback - Lighting

 

Shape

 
P408: f9 @ 1/8  ISO 100  55m WB  tungsten

This opening image of the set, a silhouette of the vessel, works very well, with the lighting source illuminating the background to clearly define the shape of the pot. Only the base of the pot remains indistinct in the deep shadow, using a low rim light could help further define the outline of the pot. Interesting that you should choose to set the white balance to tungsten to achieve the bluish/grey tones for the silhouette.

 
P409 : f5/6 @ 1/5  ISO 100 -0.7exp. 37mm AWB

 
The following shot for this element, where you use a secondary reflected fill source to balance the backlight, produces a clear outline of the vessel with just a touch of detail on the surface, and crucially, enough to reduce any heavy shadows from the background source. This works very well. It’s a good exercise to look at the variation of key to fill ratio and the impact on the way the subject is rendered.  In both cases the background is nicely illuminated, soft and even.

 

Form


P410: f5/6 @ 1 sec  ISO 200  -0.7exp. 31mm AWB


The low angle desk lamp from the front left of the camera casts a hard shadow around the base of the pot and while it does the job of defining the curved form, it’s not very pretty. Maybe a diffuser over the light, or the source bounced from a reflector in the same position, would produce a better result. You can see how the shadows at the top of the pot, where the direct source falls away, are much softer.  Another option would be to use a softer fill source from the right. The lower level of illumination on the background works well with this set up.

 
P411: f10 @ 1/6  ISO 100 33mm WB Tungsten


 

The second image is much better, and this is partly down to the way you position the subject, on its side, as much as the use of a softer source and fill.  If you positioned the lamp a little further back, this would reduce the illumination on the background, and then a focused light on the opening at the top of the vase would offer some detail of the interior. This you could achieve using your desklamp with a ‘snoot’ made out of tin foil.

 

Texture

 

P412: f5/6 @ 1/500  ISO100  41mm  WB Daylight 
 

This first close shot for ‘texture’ is good, with the angle of light, from the side, picking out any surface detail and casting enough shadow to bring out the texture, and subtle markings on the surface. Because the vessel is round and glazed, it’s going to be very difficult to reduce any glare. The softer the light the better, but that reduces shadow detail and thus texture, using a polarizing filter is another option to reduce glare, with the light at the right angle, and finally the use of a ‘dulling spray’, which is a fine spray of oil, and not recommended for use on anything valuable. The other option of course is to go for much closer detail. I wouldn’t have known this was shot in daylight.

 

P413: f16 @ 2 sec  ISO 100 47mm WB Daylight
 

The second image also captures the detailed marking on the pot, but this might be better in a closer shot, where you would have much more control over the angle of shadow, reduce the glare and the blue light, and use the depth of field more effectively to create a strong focal point.

 

Colour


P414 : f5/6 @ 1/2 sec ISO 100  -0.7exp.  AWB




You can see the impact of using mixed light in this first shot for ‘colour’. The auto white balance is reading the tungsten light from the desklamp (which I presume is an ordinary bulb?), and the background soft fill from the softbox, with a daylight bulb, is quite cool. This enhances the warn tones of the terracotta, which is what you set put to do. It might have been worth exploring some of the manual white balance settings to see what difference this made to the final image – but that is something you’ll have explored in the exercises.

 



P415: f5/6 @ 1/5 sec ISO 100 180mm WB Daylight

 

The follow up shot works very well, with your intention being to pick out the lovely greenish markings at the top inside) the vessel. As you point out in your notes, this presents something of a challenge because you have to light a smaller area with a stronger more direct source, and avoid over exposing the rest. You do that very well here, and the colour is nicely rendered. The background is a touch on the bright side, and you could probably bring the whole exposure down a little to get a better result on the lower lip without losing the good detail or saturation.

 

The two additional images offer a variation in approach to lighting (for the ‘shape’ element), the first with a pool of light on the background which creates a nice compositional balance with the dark body of the pot. In the second, you use a practical light positioned behind the pot, which again produces a different balance to the composition – and a strong use of colour. I noticed that the prints for these shots look a bit on the soft side.



P416:  f4 @ 1/5 sec  ISO 100 +0.7exp  28mm  WB Daylight

 
P417 : f5/6 @ 1/5 sec  ISO 400  38mm  WB Daylight

 

The prints are good, but look a little on the dark side, and the colours are a bit muted. It may be worth selecting one shot and making a series of bracketed adjustments to the contrast and sending off for a test print. Alternatively, you could do this with a series of thumbnail images but they may be too small to judge the results well.

 

Learning Logs/Critical essays

 

Your Log is complete with all exercises very well executed and providing a strong foundation for the assignment. It’s good that you continue to engage with a range of photographic issues and research beyond the course with good reports here on Foto8 and using Google Streetview – Michael Wolf’s work is very interesting.

 

Suggested reading/viewing

 

The next assignment is Narrative and Illustration. I would recommend that you choose a subject or theme, which is local and at least semi-permanent, which gives you both an opportunity to research the place/setting, and a chance to return if you need to reshoot any material. 

 You might want to have a look at some photoessay links online,

 


 

or even the audio visual slide shows in the guardian.