Category: The Abstracts
I'd been wondering how people manage to get that pure white background for their pictures, which is pretty common for a lot of Ads. Ofcourse, I know how to manage it using GIMP (and know its possible with other softwares as well) :)
Thanks to Sathya for actually showing me (through some of the awesome pictures he has taken) that keeping a white background is possible by slight over exposure, I tried it then and there with little success. One of the pictures I took then is in the post 'Background Coloring', but the method used there was pretty straight forward. Recently, while trying to photograph red roses in a white cloth, I realized that a touch over exposing the picture almost deletes the white cloth behind it, giving it a clean white background. But, then the problem was that good red roses are hard to find :) Finally, this is the best roses I could find in North Bengaluru and the one I liked most among the pics I could manage:
This picture is over exposed (from what camera reported in Av mode, Evaluative metering) by almost 2 steps (1.7 or 5/3 steps to be precise). I used the EF f/3.5L 180mm lens, tripod mounted, @ f/16 and ISO-100 for a 1.3s exposure. While, playing around a little bit with GIMP, I figured that its pretty straightforward to select the background and make it a cleaner white, I chose to retain some of the shadows and creases and post the original picture after only a small rearrangement of the frame.
I would like to thank Sathya for sharing his awesome collection with me, which gave me the courage to try some of these things :) I hope I could click a classic matching Satya's pictures some days :) Btw .. my final aim is to get a picture of my dad in his easy chair on the lines of this post :'Achan @ Home, RT Nagar, Bengaluru', but I guess it'll take a little more effort and experiments :(
As a side note, if anybody is trying it out, its not a bad idea to click a few pictures with different exposures and comparing it in full screen. Also, this kind of over-exposed background is possible, only if the subject is dark in comparison with the background. For a brighter object, may be a better option is to use a dark object for background and under-exposing :) I may even try a white / pink rose in a black cloth later :)