Waterfall Country.

26th October 2017
It was a lovely day yesterday so Susan and I went walking in what is known locally as 'Waterfall Country'. We were out early and started our walk from Pont Nedd Fechan and we walked for about a mile up to the first main waterfall, Sgwd Gwladus. There was no one else around and we watched Salmon leaping over one of the smaller falls during the walk up. We had superb close views of several Dippers, this is a great habitat for them! It was a lovely peaceful walk in beautiful surroundings and a total contrast from the views up on the Beacons.
I took a few shots as a record of the walk.

Both Images taken with my usual set-up.

Canon 1D MK 2
Canon 17-40 f4
Manfrotto 055 CX3 Tripod
Manfrotto MH XPRO three way tilt and pan head.
Canon remote cable release
A circular Polarizer to remove glare.
An ND 200 Filter to slow the water up.

Also used was a technique called focus stacking;
This involves setting up your composition then locking everything down on your tripod.
These shots are best taken from a low position, as indeed are many.
Switch your lens to manual focus and take a series of shots begining from as close as you can, then 1 metre ; 2 metres ; etc etc up to infinity, maybe four or five shots, taking care not to move your tripod.
Process one shot, eg sharpness, contrast, colour etc then open up all the images and blend them all together in photoshop.
(If it sounds complicated, don't worry it's not)!
This technique overcomes the blurring in areas of your image caused by depth of field.

Using typically the image with the rocks in the foreground:
If the rocks were sharp then the waterfall would be blurred and conversely the same.
Stopping down your lens can help to reduce shallow depth of field but cannot overcome all the blurring.
So to use focus stacking;
Focus manually on the very near rock, then the red leaves on the next rock, then the curly log, then the water and then the waterfall itself, five images. The photoshop programme will correctly align all the images chosen so they sit perfectly on top of each other. It will also blend the images by content and this is the clever thing, the programme will select all the sharp areas from all the images and blend them into one seamless image. Thereby producing one image that is sharp from front to back. A lot of macro photographers use this technique where it is particularly effective, as depth of field causes them even more problems with close up images.