Telephone: 251 591 6675

Email: john.serafin@gmail.com
 



Photography Tips

Got questions? Have a request? email me

Data Archiving

As reported on the home page, I have suffered a major set back. In May of 2011 my home was destroyed by fire. Fortunately no-one was hurt. I will post some pictures shortly.
99% of my digital archives are gone. I thought I had done enough to protect my photographs; External Hard Drive backup, periodic DVD backup of the external Hard Drive (I had over 50 DVDs, approx 200 Gig of photos and data)

Meantime now is a good time to remind everyone of a few points:

  1. External Hard Drive backup - good idea
  2. DVD Backup - good idea

    the next vital step

  3. Store the DVD's in a separate location from your PC/External Hard Drive or investigate online storage.

A few more lessons learned:

  1. Make periodic videos of your home exterior and interior.
    This will make it so much easier to inventory your losses.
    Go from room to room, narrating as required. I had to make a list from scratch.
  2. Review your insurance policy and make sure it will cover the value of rebuilding your home.

 

The Basics

Aperture

Mechanism in the lens that can be adjusted from "wide open" (big hole) to "stopped down" (small hole). It controls how much light is allowed to get through the lens to the film/sensor. Aperture is expressed by f-stop.

f1.8 = big hole

f16 = small hole

Effects of f-stop on images

  • Smaller f stop number f1.8 for example decreases the depth of field. Useful for portraits
  • Large f number increases depth of field, useful for landscapes
  • Warning - avoid using f22 or higher unless absolutely necessary. Google diffraction for more info

Portrait at f4, note the completely blurred background

 

Interior at f8 that allows most of the shot to be in focus

 

The Basics

Shutter Speed

The duration the shutter is open to allow light to enter hit the sensor/film. Expressed in seconds or fractions of a second.

High Speed ( 1/250th of a second or shorter) effects on your photo

  • Freezes motion
  • Reduces/eliminates blur due to camera shake

Kite Surfer Pensacola Beach - Fast Shutter to freeze motion

Low Speed ( 1/30th of a second or longer) effects on your photo

  • Used to emphasis motion

Dallas Fort Worth Airport slow shutter approx 2 seconds with camera supported by my bag.

Next article - aperture.......

 

 

 

Get Creative

5 simple ways to get creative

1. Get low, try crouching down to get a different perspective, Hell why not get on the ground.

2. Portrait or Landscape? Experiment, why not try a 45 degree camera position

3. Get fuzzy, try a slow shutter speed and see how moving obejects appear

4. Black and White it, add sepia, add any color tone

5. Patterns, look for recurring patterns and isolate

Flash

Its sunny outside, no need for flash right?. Wrong, sunshine is often harsh and casts strong shadows. If you are snapping a pic of the family on the beach, pop up the flash to fill in the shadows.

 

Critical Aspects of any Image

The following short article aims to point out a few aspects of an image that will help you create better quality photos, be they family snapshots or fine art. I'll touch on three aspects:

  • Sharpness
  • Composition
  • Colour

Sharpness

Not necessarily the most important aspect, but critical for many. The sharpness of an image is one factor that many can easily see and easily control.

What causes an image to be blurry or less crisp than one expects? Several reasons:

  • The camera was shaking when the shutter was pressed
  • The subject was moving when the shutter was pressed
  • Incorrect selection of shutter speed.

Camera shake is the most frequent reason for a blurry image. Its easy to 'jab' at the shutter when taking a shot causing the camera to move. Our hands shake, contributing to the problem. The solutions are easy. Practice pressing the shutter with a smooth action. Control your breathing and take the shot when exhaled. Good camera holding technique is also important. Google "Holding a camera' and you will find many articles on how to effectively hold a camera. The final easy way to stop camera shake is the use of a tripod and the self timer on your camera.

Subject movement is an obvious reason why an image is blurry. Tell tale signs are when the background is ok but the subject; a car, pet or flower, is blurry. The reason why this occurs is because while the shutter was open the subject moved enough to create the blur. How do we fix this? Two ways; stop the subject from moving or select a shutter speed high enough to 'freeze' the movement. Even fast moving animals or water can be frozen in time with the use of a fast enough shutter speed.

Final thought, many camera's/lenses now offer a feature that claims to compensate for vibration that causes image blur. Nikon calls it VR (Vibration Reduction) Canon IS (Image stabilization). VR or IS works! It allows you to use a slower shutter speed and still get sharp images.

Composition

Just a few tips in bullet form

  • Watch for missing body parts
  • Rule of thirds (google it)
  • Horizon, keep it straight
  • Leave room for cropping
  • Right lens for the job, avoid wide angle lens for portraits
  • Fill the frame
  • Break the rule of thirds..... sometimes
  • Find unusual angles

Color and Color Management

Color, sounds simple but color is one of the most critical aspects of an image. With a vast array of colour spaces available; aRGB, sRGB etc its easy to make critical mistakes and for example have skin tones look green.

My advise.. stick to the industry standard, sRGB. Shoot in sRGB, set up your workspace in sRGB and print in sRGB. Other workspaces have a wider gamut, but sRGB just works for web presentation and prints.

One step I always recommend, calibrate your monitor. Not all monitors display correctly. I hated it when I edited a photo on screen, and then printed it out and it looked like crap.
Highly recommend the SpyderExpress. For about $60 and 15 minutes you will have a calibrated monitor.

 

Megapixels = Mega Photos?

Forget it... unless you plan to print huge posters. 6 is enough for great 8x10's.
Pick your camera based on other factors; ...

  • Ease of use
  • Lens quality
  • Functions
 
 
   
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