Setting a Challenge – Red

With digital cameras the colour red can be an issue. When you think of a Bayer, the four square matrix is made of you a green filtered pixel, a red filtered pixel, a blue filtered pixel and then one more green that is used to capture the luminance, information. That is why a 4 MP camera can be thought of as a 1 MP camera as only one pixel in four has the luminance information.

The red pixel though has an issue. The red filter is much darker, and lets in less light and thus is prone to underexpose. When shooting a scene with a lot of red the camera in software and the photographer tend to counter this with over exposure and often end up blowing the red channel. It looks fine on the little screen on the back of the camera but when you come to edit it there is no real detail in the red channel.

Photography for me is not my primary job, its mainly a hobby but I undertake professional commissions through the year. In order to keep things fresh I like to set a challenge every now and again.

As you can see from the lack of posts this year, my personal photography work has been pretty much at a standstill. So it was time for a challenge to get the creative juices flowing. What better then a challenge in Red!

I decided to work in a controlled environment so the location was my favourite local studio in Worksop, Nottinghamshire. I also picked one of my favourite amateur models who happens to have dramatic dyed red hair. Add to that a red background and lots of red fabric a bit of flash also pointing at the camera to try and produce a bit of artistic flare and I was on course for a shooting nightmare.

Meet Ted the Greyhound

The house has seemed very quiet since Timmy the Greyhound left us back in March.

Its now time to face the future and give our hearts and home to another retired greyhound.

Leica Fotos App

Most of Leica’s current crop of cameras can be linked to your mobile device of choice via wifi.

While I do not make use of the remote control features, being able to quickly download the photographs from my Leica M without having to take it out of its case, removing the bottom place etc, is useful.

We used to have an app for each camera but now Leica have released Fotos. A general gallery and remote control app that works with all their cameras.  With the latest firmware release for the Leica M, even creating an adhoc network became easier, as the camera just shows a QR on the back, which the app sees using the camera in your mobile device and your all paired and setup.  The app supports multiple cameras and is easy to use.

There is however an issue.  I could not get the app to download my photographs.  It turns out that the app has to create a custom album on you mobile device which must be called Leica.  I already had a album called Leica on my phone.  This the app did not like and kept crashing until I deleted my album.

Maximising Dynamic Range

The key to maximising dynamic range is to shoot at the base ISO of your sensor and nailing the exposure to protect what your really interested in.

Some scenes are too much for any camera so you have to pick and choose, protect the shadows or the highlights the choice is yours.  Picking the base ISO of your sensor seems the easy part.

Any exposure other then the base ISO results in reduced dynamic range and more noise.  We are used to cameras now with extremely high dynamic range and an extraordinary high ISO values and low noise, the problem is that camera manufactures now seem to think they know best and make adjustments, Sony seem to have the best high ISO performance but thats because of aggressive noise reduction that hides key detail.  It would be better to give the photographer the choice and leave the noise reduction to either a menu option in camera or for the photographer in post production.

Leica has a similar issue with the M10.  A number of users have reported blown high lights at the base ISO of 100.  At 200 the dynamic range seems better.  It turns out that the base ISO of the the sensor in the M10 is about 160-180 ISO.  Now 100 is not far off but it is a pull setting and using an ISO setting of 200 gives you better dynamic range.  Unfortunately the base ISO is inaccessible.

 

Photo of the Month – October – ish

iPhone X
iPhone 8mm f/1.8
8mm, 1/17 Sec at f/1.8,  ISO64
Post Processed in Adobe Lightroom Classic

I actually did very little photography in October so this was actually taken at just prior.  I have added it to the photo of the month as is a good example of what modern phone cameras can do.

In many ways its not a brilliant picture but, it was take at night under poor artificial lighting.  When you consider the conditions its amazing.