Grayheron Photography

This post is really an excuse to play around with my new laptop.  As a lifelong Windows guy, I finally took the plunge and got myself my fir...

In the last few posts I've described how one can characterise any lens, by estimating its cardinal points through laser ray tracing. In ...

In the last post I  outlined the basic approach to using a laser line leveller to help identify the cardinal points of an unknown lens. The ...

This is a slight edit of the original post. In this post I will show how anyone can create a 'thick lens model' of any lens. Of cour...

In the last post I covered my 'final' experiment in creating a Digital Multi-Format Shift Camera set up, that covers XPan like senso...

In the last two posts I discussed my Ultra Digital XPan set up: using a Canon RF camera, a visible band R and an IR converted RP in my case,...

In the last post I introduced my 'Ultra Digital XPan' set up, which looks like this in portrait mode:   Using my geared head, on a g...