I should stress at the beginning that I am neither a doctor nor an optician so if I use the wrong terms, consider the source.
I have however been fascinated by photography since getting my first SLR in my very early teens. That was followed by a few years of hands covered in chemicals as I learned how it all worked. The move to digital was a no-brainer but offers so many possibilities.
They say “the camera never lies”.
There is a world of difference between the camera and your eye and I will use that to question the above statement.
When a camera takes a picture, let’s say outside in the brilliant sunlight (clearly not in the Northeast of England) with some trees and dark shadows, it records faithfully what it can… and therein lies the rub “what it can”. The camera stores images in memory. It stores 3 colours – red, green and blue and it stores them with a limited dynamic range – that is, the range from the lowest brilliance to the highest brilliance and that is FAR from complete.
So I will firstly argue that the camera DOES lie in that it does not show you the complete range from the darkest shadow to the brilliant sunlight.
That is the first flaw and though there are ways to improve this (RAW images contain more bits-per-point than JPG and HDR photos take multiple exposures to try to “cluge” a wide dynamic range picture) the result is far from perfect and the mechanism for displaying the image is also far from perfect as it, too is unable to display the brilliance of sunlight down to the darkness of the deepest shadows (we’re ignoring the fact that the image is flat rather than 3D – that’s another discussion).
But this is only the beginning. When you use your EYES to look at a similar scene of high contrast, your eyes and brain cheat in many ways, NONE of which are replicated by the camera.
a) You see a combination of the truth and what you expect to see.
b) The individual sensors in your eyes can selectively desensitise to give you a non-linear image of wider dynamic range than a camera would manage
When you look at an image, your eyes do not work the same way that they do when looking at real life – because the image does not have the dynamic range from dark to light to trigger the same responses in the cells.
Don’t believe me? Do you squint when you see a photo of bright sunlight? No. If you look at a photo of darkness will more detail emerge the longer you look at it? No.
So when someone comes along with a beautiful HDR photo and the photographic “experts” complain about HDR not being “pure” it reminds me of the people who say that valves are best (generalisation – the old ways are best) – I find myself smiling.
I take photos with the best equipment I care to carry around (more often than not my S4 phone) and I use photo tools to render those images to as near as what I THOUGHT I saw or I WANTED to remember and that, at the end of the day is what matters – unless of course you’re selling the images and even then – the image on the right is nothing like reality – but it would still look lovely on a wall. A “pure” photo can never reproduce reality exactly – so treat the camera as an artistic tool and enjoy.
A note for Android lovers… if your phone gets updated to Lollipop (coming soon) – keep an eye out for “Camera FV-5” app – the author is promising RAW format images. If you have something like the Samsung S5 or similar phone with high grade camera – you’re in for a treat! RAW will allow a greater range of post-editing as there is more information to start with.
Since coming back from Galera in Spain in the summer, life has been hectic – Maureen went back to school for a while, was recently off again but is now back in action. Hollyberry Cottage has been packed but we managed one day to get some essential maintenance in. I’ve been to Brussels for meetings and managed to fit in a trip to the Mini-Europe, I’ve been back and forth to Blackpool for FSB meetings, visited Jodrell Bank, been on a cruise just off Guernsey and next week we’re taking a short trip to Cornwall to go see the Eden Project, something we’ve been meaning to do for years but somehow never gotten around to it. We will of course post pics in here and on Facebook – I’m just hoping we get something remotely like decent weather.
The rest of the time has been filled with day to day emails and phone calls. I’m sitting here surrounded by new technology, trying to get a little WIFI board working and my friend Jonathan has brought me a wonderful tiny blue display which we’re considering right now to be a wonderful idea like the laser was – magical product but what can you do with it – well we certainly found plenty of uses for the laser!
Of course no blog entry is complete without a decent size photo – so here’s a picture of breakfast at a wonderful little cafe in Bellingham – good healthy stuff.
I’m currently working with a miraculous little board called the #ESPN8266 from #ESPRESSIF which could revolutionise low cost side of the “Internet of Things”… essentially a tiny circuit board that allows low cost control systems to interact with the Internet via WIFI in the way your phone does – but it’s WAY too technical for this blog I fear so anyone interested might head on over to my tech blog.
The idea of WIFI controlled gadgets is nothing new of course but for the first time this can now be done extremely cheaply. If you’re interested, head on over to the blog.