[This post shows how one of the images in last month's Club competitions was produced.]
The start image in this guide was a jpeg. The original I used for the actual image was a RAW file. The steps described here are the same. The original image is the colour one shown at the left and the final image is on the right - click on the images to see larger versions.
Step 1 - Load image into Lightroom.
Step 2 - I adjusted the BLACK and WHITE sliders while holding down the ALT key to get the effect I wanted.
Step 3 - I moved the HIGHLIGHT slider all the way to the left.
Step 4 - I adjusted the lens correction to lens used.
Step 7 - The image was then opened in Photoshop.
Step 8- The clone tool was then used to repair damaged edges and flaws on the leaves.
Step 11 - The finished image was then saved as a jpeg at the right size for the Club's competitions.
by George Hay
Photography means ‘writing with light’ But writing needs control. In photography one of these controls is the combination of aperture and shutter speed: EV or "exposure value".
Historically a problem encountered by beginners is understanding apertures and shutter speeds. Manufacturers have come to your aid by evolving automated exposure controls; aperture priority, shutter priority, program, matrix, spot, multi segment + different names for the same function by different manufacturers. The cure is now more complex than the problem.
Aperture/ shutter speeds - ½ and third stops.
The concept of apertures and shutter speeds is fairly easy to understand. Let me draw a parallel:
Buy a camera - cost £100, but you need to save up for it.
£50/wk for 2wks
£ 2/wk for 50wks
£25/wk for 4wks
£ 4/wk for 25wks or any combination in between.
This is a combination of Quantity and Time:
Quantity is aperture
Time is shutter speed
Let’s look at them individually and take the easier one first
You will make mistakes!!
Let's say the ‘Correct exposure’ for a scene is 125th sec @ f8.
1 stop 60th @ f11
1 stop 250th @ f5.6
2 stops 500th @ f4
2 stops 30th @ f16
3 stops 1000th @ f2.8
3 stops 15th @ f22
All these combinations will give the same exposure - but not the same effect.
Scale refers to sensitivity of CCD - the higher the number the quicker the response.
Low number - 25 ISO slow
High number - 800 ISO fast
100 200 400 800 etc. also doubles/halves.
Higher number leads to grain/digital noise
Definition - Exposure is the amount of light allowed to reach a CCD via a combination of aperture and shutter speed.
Conclusion - Aperture and shutter speed is the way light is controlled to enable an exposure to be made.
by Neil Blair
Here's a simple way to add a border to the edge of an image using any flavour of Photoshop (Elements or Photoshop itself):
by Neil Blair