Wednesday, 19 December 2012

Exercise Histograms

Having completed the first two exercises and looked at the histogram exercise I have decided to have a break from it until after Christmas as with everything else going on and it being a tricky subject to get my head around completely might not be able to put the amount of time into it as I would like, although having said that I have read through the exercise and if the opportunity crops up I will take the shots but I won't be going out especially to take them.

Well Christmas is over I have had a rather large birthday and its time to get back to work, I have had many attempts at this exercise  and although I am still not completely happy with the images I do understand the importance of a correctly exposed histogram,

The first one is the low contrast one I thought this would be fairly easy to do all I needed was a scene with little tonal change that was my first mistake, I took many photographs checked the histogram on the back of the camera and deleted them, finally starting t o get a bit despondent I decided to photograph fence panels not exactly exciting I know but it was the results I was mostly interested in.
below is the histogram taken from the metered reading

This was quite strange in that the histogram on the back of the camera showed all three colours together where the red is on this histogram but the colours are correct in relation to the actual colour of the fence.


Photograph two is + 1 stop and the histogram looks much more like the one on the back of the camera but the colour is wrong, detailing is also lost.

Photograph three is - 1 stop and this time the colour is much darker the histogram is much closer together and more detail is shown.

On all three photographs there was no clipped highlights.

Average contrast


The metered shows there is more of the photograph in shadow but there are no clipped highlights on the photograph and no shadow highlights either.


The next shot is one stop lighter this time there is quite a bit of clipped highlights and a small amount of shadow clipping. How ever the histogram looks more evenly spread but the image is not true to the day.


The final image is 1 stop darker there is plenty of shadow clipping and the histogram is mainly to the shadow side, I quite like this shot, although I would have liked slightly more detail to it maybe it would be worth dialling in 1/3 stop from the metered one.

Finally the high contrast shot.
I was surprised how difficult this was to shoot, but trying to get the right conditions in the winter when its been really gloomy and hardly any sun was interesting to say the least. I finally decided to try and set something up in side.






I used a white glass and a black beaded arrangement hoping that because of the contrast in the two colours ie both ends of the histogram I might get something useful from it, the first one shows no clipped highlights at all although you can see that the main part of the histogram was to the right hand side. Pattern is reasonable clear and fairly like the original work.


Photograph two which is one stop lighter, this time you can see the clipped highlights area although I would have expected to see this slightly larger, the detail of the glass has almost disappeared.

Photograph three taken one stop darker and this is the most like the original set up, the glass can be seen clearly there are no clipped highlights, probably the best of the three shoots.

I am glad to finish this exercise not because I didn't understand it or don't appreciate the importance of a correctly exposed histogram but more because of frustration with weather conditions and not getting a bright day which would have helped with the high contrast photographs and when we did get a bright day I was in my day job.

Saturday, 24 November 2012

Part one Workflow Exercises one and two

As these two exercises can be combined with others in this section I have decided to write about them both together.

For both exercises I need to plan and then put into practise a work flow that works for me.
My starting point is to read the section on work flow in 'the digital SLR handbook by MICHAEL FREEMAN' further details open this book are written about in the page on reading materials.

I have taken the photographs for the second exercise first although I still intend to document the exercises in order I just happened to be going on a day trip to London and it seemed too good an opportunity not to make use of.

Well its time to start the first exercise and here is my work flow, it will be interesting to see how I might need to adjust this as I go along.

Exercise one
This needs to be a portrait session and limited in time.
work flow pattern
  • Find a location
  • Check camera, are the batteries charged is there room on the memory cards, are the lenses cleaned and does the flash gun have batteries. finally make sure there is space on the hard drive or you have enough disks/ memory sticks to house the new photographs.
  • Camera settings, I always shoot in raw and jpeg, but will i need a tripod and remote trigger, think about the shutter speed and white balance likely to be needed.
  • Take the shots, check the poses and lighting looks ok, time this section to about 10 to 15 minutes
  • Upload to computer
  • Delete any really bad ones (out of focus, too dark bright etc)
  • Give the ones left a number
  • process these ones
  • final selection process choose the best two to print use on website etc.
  • Save on external hard drive and a disk labelled with correct title and date.
  • Print photographs or complete upload.

So far as location was concerned I decided to use my home studio and bribed my mum to pose for me, I told her it would only be a 10 to 15 minute shoot and she was more than happy to help me out.
I had already metered the room and set the camera up with the correct settings in this case it was F11 shutter speed 125/s iso 100 and white balance set to flash.
I proceeded to take 30 photographs opting to take close up facial photographs and then just about from waist up.
The photographs were then uploaded to the computer and I checked through them showing my mum at the same time as she was interested in the whole process. There was a few photographs that I knew straight away I didn't like so I deleted those and finally settled on the ones I wanted to label then work on before making my final selection.
Mum 1
 
Mum 2

Mum 3

Mum 4

Mum 5
 
Mum 6

From the six above I finally decided on Mum 2 and 3 as the ones I would use, I should add here that I am sure my mum won't mind me revealing her age to be nearly 73 as I don't think she looks anywhere near to that, these are the best photographs I have taken of her so far and she was couldn't quite believe herself how good she looked.
The final two


In terms of how the work flow went overall I thought it went well, I have never had to rate photographs before and it took me a while to work out how to do that but once I had worked it out it was really quite straightforward, the next thing I want to try to work out is how to embed photographs with the information I know who to print them as a contact sheet with the information underneath but I don't know any other way at the moment so I guess its back to the reading books for me.
 
for the second part of the exercise I needed to do a less structured shoot, My husband was given tickets to the London eye as a birthday present and we finally decided to go (it only took from Feb to Nov for us to go), and the day we chose could not have been better for the actual trip however it was very bright making conditions for photographing more challenging.
I decided to follow the work flow pattern I had used before but with the added step of reviewing my photographs 'on locatation' and deleting some of them as I went.
I took about 80 to 90 photographs during the course of the day but on uploading them to the computer I choose about six or seven that I really liked. I noticed when viewing them on the computer screen that I could see reflections of people In the pods on the eye and have made a mental note that the next time I am doing anything like this I need to pack a polarising filter.
Below are my favourite four photographs
The settings used for photograph one was 18mm focal length, iso 200 f10 shutter speed 1/400's white balance was direct sunlight.
The settings used for photograph two was the same as for photograph one


The settings used for photograph three was the same as for photograph one
 The settings used for photograph four was 200mm focal length, iso 200 shutter speed 1/320's f11
again with a white balance of direct sunlight.
The post production I used was the same for all four photographs I opened them in raw checked the exposure and made any small adjustments to clipped areas and adjusted the clarity, I then opened them in elements and cleaned the dust spots from the photographs (my sensor had dust on it but has now been cleaned) then adjusted levels flattened the image then used the unsharp mask, before renaming the photographs and resizing them to use in my blog, the only other process I did was on the second photograph I cropped it as I felt there was a bit too much sky in it.

My overall thoughts on using a work flow rather than just taking photographs and then down loading them in a hap hazard way are that its less time consuming overall to be organised its easier to find the photographs looking back for them and by developing a routine you don't miss any thing out.

Tuesday, 20 November 2012

Musings at the start of the course

Well the second course has arrived and I opened the box with a mixture of excitement and apprehension, although I have only just sent the Art of Photography final assignment in I have finally found a good routine to my studying and I really didn't want to loose that momentum and anyway Christmas is coming and I can leave the book list around for Santa!

I had been without any study materials for about two weeks and I found I was really missing it so that's where the excitement came from then the apprehension of can I do it, but this was a similar feeling to the one I had for the first course so I already know the answer to that.

I have read through the start of the course and I think this one will be a lot different from the art of photography there are new challenges to be met some thing I am looking forward to, I have also made contact with my new Tutor so its all very real now, I hope you enjoy reading through my journey.

If you wish to read my first blog on the Art of Photography course the address is http://www.phillipaday.blogspot.co.uk