Depth Power
![]() |
![]() Sony XS S160CX 2 Way 675 Car Speaker US $50.00
|
![]() Kenwood KFC W3011 1 Way 12 Car Subwoofer US $9.99
|
![]() GARMIN COLORADO 300 HANDHELD GPS UNIT SYSTEM US $120.00
|
![]() Garmin nuvi 1300 Automotive GPS Receiver USED US $54.00
|
![]() PIONEER CDX FM653 6 DISC CAR AUDIO CD CHANGERANTI VIBRATION CHASSISUSEDLK US $19.99
|
![]() Brand New Factory Seal Garmin Nuvi 2460LMT Automotive GPS Receiver US $175.00
|
![]() Rockford Fosgate Punch 700S 700watt Bridged Car Amplifier W End Caps US $117.50
|
![]() AS IS GARMIN NUVI 40 PORTABLE GPS US $19.30
|
![]() Magellan Maestro 3100 Automotive GPS Receiver USED US $5.50
|
![]() Jl Audio Slash v2 300 4v2 Car Amplifier US $137.50
|
![]() Garmin Forerunner 201 Black Sports GPS Receiver US $71.00
|
![]() JVC KD HDR40 car stereo HD cd receiver NEW IN BOX Remote incl US $56.00
|
![]() Jl Audio Slash v2 500 1v2 Car Amplifier US $275.00
|
![]() Pioneer AVH P5000DVD 7 inch Car DVD Player SMALL FACE PLATE ONLY US $35.00
|
![]() Pioneer DEH P6600 cd player car stereo US $56.65
|
![]() Package Two Kicker S12L7 12 in Dual 2 ohm 750W Subwoofers Square Speaker Box US $399.99 |
![]() Bazooka MT6502WS Wakeboard tower WHITE 6 1 2 Marine Tubbies White US $189.00
|
![]() Kenwood KAC 8401 Car Amplifier US $25.00
|
![]() Garmin StreetPilot i5 Automotive GPS Receiver US $30.01
|
![]() JL Audio 12W7 3 12 W7 3 Ohm Subwoofer Speaker 2000 Watt Peak Car Sub US $315.00
|
![]() Garmin Oregon 400t GPS Receiver with 2GB Micro SD Card US $274.99
|
![]() Magellan RoadMate 360 Automotive GPS Receiver US $1.04
|
![]() JVC KD S5050 CD In Dash Receiver Stereo w Jensen XS 2400 Speakers Covers US $14.50
|
![]() ORION 240W 6 1 2 2 Way XTR Series Coaxial 65 Car Stereo Speakers US $16.50
|
![]() Alpine IVA W505 65 inch Car DVD Player US $300.00
|
![]() OLD SCHOOL Rockford Fosgate Power 551S Car Amplifier US $66.00
|
![]() Rockford Fosgate RFZ2410 1 Way 10 Car Subwoofer US $39.99
|
![]() Magellan RoadMate 1412 Automotive GPS Receiver Broken AS IS US $.99
|
![]() Legacy LWF8X 8 Car Subwoofer 2 US $42.00
|
![]() MTX RFL1200D Car Amplifier US $115.00
|
![]() ALPINE COMPETITION SQ FLAGSHIP CAR CD MP3 XM APPLE IPOD PLAYER STEREO RECEIVER US $349.99
|
![]() Pioneer DEH P360 with Faceplate US $45.00
|
![]() BRAND NEW JENSON 35 TOUCH AND GO PORTABLE GPS NAVIGATION SYSTEM NVX225 US $105.99
|
![]() Garmin nuvi 250 Car GPS LCD ram mount 12v bundle US $40.00
|
![]() Magellan RoadMate 800 Automotive GPS Receiver Broken AS IS US $.99
|
![]() Kicker Comp 10 inch US $30.00
|
![]() Garmin GPS V Automotive Marine GPS Receiver Manual Antena Port Bundle US $54.99
|
![]() Audiobahn A4004T 200watt RMS Bridgable 4ch Car Amplifier REAL WORLD WATTS US $119.99
|
![]() Pioneer AVH P3200DVD 58 inch Car DVD Player With Backup Camera Remote US $190.00
|
![]() New Marine Audio 500 Watt Pair 65 2 Way Boat Speakers US $8.50
|
![]() FUJITSU SIEMENS Pocket Loox n100 GPS Navigation System Bundle US $100.00
|
![]() Magellan Maestro 5310 Automotive GPS Receiver Broken AS IS US $.99
|
![]() Alpine SPS 517 2 Way 5 Car Speaker US $50.00
|
![]() Magellan Roadmate GPS LOT Navigation System Receiver 1412 1475T 1700 1440 AS IS US $19.99
|
![]() Kenwood KFC 1693PS 65 Inch Performance Series Speaker System R13A US $13.49
|
![]() Garmin Etrex Venture Hc Handheld GPS Receiver Kit NEW US $160.97
|
![]() PAIR Soundstream TWS4 1 Niobium Micro Dome Tweeters 200 Watts US $10.50
|
![]() Garmin Etrex Venture Hc Handheld GPS Receiver NEW US $146.97
|
![]() Garmin Nuvi 1260T Bluetooth GPS Navigation 2GB Kit NEW US $267.97
|
![]() Garmin Nuvi 1260T T Bluetooth Color GPS Navigation NEW US $227.97
|
![]() Garmin Nuvi 265T 35 Portable GPS Navigator2GB Kit US $158.97
|
![]() Garmin Nuvi 265T 35 Portable GPS NavigatorTraffic US $128.97
|
![]() Garmin Nuvi 275T 35 Portable GPS Navigator NEW US $248.97
|
![]() Garmin Nuvi 275T 35 Portable GPS Navigator2GB NEW US $278.97
|
![]() 2 New 350 Watt 10 Inch Subs Car Truck Audio Subwoofers US $17.50
|
![]() 4 New BOSS CH6530 65 3 Way 600W Car Audio Speakers US $50.95
|
![]() Alpine MRP M200 Car Amplifier US $99.00
|
![]() Magellan Maestro 3225 Automotive GPS Receiver Broken AS IS US $.99
|
![]() Pioneer TS T110 088 Car Speaker US $40.00
|
![]() Infinity Reference 6412cfp 2 Way 4 x 6 Car Speaker US $31.00
|
![]() Sony CDX GT660UP 208 Watt XM Ready Car In Dash CD MP3 Player w USB for iPhone US $62.00
|
![]() Alpine CDE 9872 CD MP3 In Dash Receiver US $50.00
|
![]() New Visonik Dual 6 Inch 200 Watt Loaded Sub Enclosure Speaker System NR US $16.50
|
![]() Pioneer TS A6969 4 Way 6 x 9 Car Speaker US $89.99
|
![]() Pyle PLBW154 1 Way 15 Car Subwoofer US $10.00
|
![]() 2 Alpine SPS 600C Crossovers US $9.99
|
![]() Garmin nuvi 1350 Automotive GPS Receiver US $86.00
|
![]() KICKER 12 L7 US $96.00
|
![]() Magellan Maestro 4040 Automotive GPS Receiver Broken AS IS US $.99
|
![]() Pioneer AVH P4000DVD DVD Receiver US $137.50
|
![]() Magellan eXplorist 400 GPS Canada Maps Geocache with Canadian TOPO maps US $78.66
|
![]() Used Nextar Gps US $24.99
|
![]() Carbon Fiber Alpine Wakeboard Boat Tower Speakers Also Fit RZR Ranger ATV UTV US $202.50
|
![]() JVC MP3 CH X1500 12 DISC MULTI CD CHANGER US $42.00
|
![]() Kenwood KFC 1693PS 65 Inch Performance Series Speaker System R13 US $10.50
|
![]() NEW Garmin nuvi 1300 Automotive GPS Receiver US $71.00
|
![]() MTX Thunder 4250D MINT CONDITION NEEDS WORK US $15.00
|
![]() 4 Infinity Kappa 629i 65 225 Watt 2 Way Speakers US $186.95
|
![]() Garmin nüvi 1300 Series 4 Portable GPS Navigator US $39.00
|
![]() JVC KV M700 64 LCD Monitor w Wireless Remote Mobile Entertainment NEW US $10.49
|

Is this the most Powerful Photography Technique
For many years photographers have used depth of field control as a tool to focus viewers' attention within their work. It seems recently we have forgotten how to use this incredibly effective technique. Learn how to use this properly and your photography will take on a new dimension.
Let's consider two ways in which we can use depth of field:
Firstly we can maximise depth of field so that images are sharp from front to back. This is the most common approach photographers' use but is often poorly executed. Typically a photographer will stop down their lens to the smallest aperture possible and then focus on a point in the distance. This will not make the best use of the cameras optics and often results in a soft image.
The approach I recommend is to stop your lens down to around f/18.0. Go any smaller than this and the picture quality will suffer. Next, do not focus on a distant object. Focussing on anything over around 12 feet away will cause the lens to focus on infinity which is not what you want; effectively you are throwing away degrees of sharpness in your image. Instead find a point in the foreground about 6 feet away and ensure your camera focuses on this. This may require you set the cameras point of focus manually so if you don't know how consult your cameras manual.
By ensuring a good depth of field using f/18.0 and focussing on a point in the foreground your images will appear much sharper than otherwise. This technique is known as hyperfocal focussing and whilst I have simplified it here, you will be able to find a depth of field chart or calculator on the internet. The true hyperfocal distance will depend on your camera, lens and aperture combination but the above will help get you started.
The second example is where you use a shallow depth of field to emphasise a subject in the frame. This is a very powerful technique known as differential focus and has been used by many masters of photography in the past. It's well suited to portrait photography where you need to focus attention on the eyes of the subject.
To use this technique you need a lens that has a wide aperture. Try to avoid using a wide angle lens (anything wider than a 35mm lens) as these have too great a depth of field. Typically a 50mm lens is good as these usually offer a maximum aperture of f/1.4 or f/1.8. When you open up the aperture to this degree you will find that you only have a few inches of depth of field. It's often better to close down the aperture about a stop to perhaps f/2.4 to give a little more depth of field but also lenses will perform better if the aperture is not at its absolute widest. With your aperture set focus on the subject point you want to emphasise. You also need to ensure the subject is between 3 and 10 feet away to ensure the background is thrown out of focus.
Both techniques will take a little practice to master but it's well worth the effort.
About the Author
Robin Whalley is a UK based Landscape Photographer whose work has appeared in magazines such as Canon EOS User, Photography Monthly and Outdoor Photography. He has been a finalist in both Photographer of the Year and Landscape Photographer of the Year, where his work has been included in national exhibitions. His Lenscraft website is packed with landscape photography and tutorials to help the aspiring photographer.


US $50.00














































































