The document discusses the photographic technique of depth of field and how adjusting the aperture and shutter speed can control the amount of focus versus blurriness in an image. Specifically: - Depth of field refers to the range of focus between the nearest and furthest objects in a photo. Wider apertures and slower shutter speeds decrease depth of field making backgrounds more blurred, while narrower apertures and faster shutter speeds increase depth of field. - The author provides 6 photos taken with different aperture and shutter speed settings to demonstrate adjusting the depth of field. Lower aperture numbers and higher shutter speeds focus more on the subject while blurring the background more. - By leaving the ISO at 200 across photos,

1. DeclanTyldesley
Photographic Techniques
Depth of Field
Whentakinga photographDepthof Field(DOF) canbe appliedinmultiplewaystotake a high
qualityandfocusedphotographof aspecificperson,objectetc. Depthof Fieldcanbe appliedtothe
photographbyadjustingthe Aperture (F-Stop) andthe ShutterSpeed.Howeverbeforeyoudothis
youmust findthe correct ISOnumberso no digital noise isshownandyoumustalsomake sure that
the image is not overexposed,soyougaina highqualityphotograph.Byloweringthe Aperture and
increasingthe ShutterSpeedthe image will stayatthe same brightnessasbothof the numbersare
balanced;howeverfromthisthe backgroundwill thenbecome more outof focus.In photographic
terminology,Depthof Fieldisthe range of focusbetweenthe nearestand farthestobjectand/or
personsetc.
BelowIam goingto lista seriesof six imagesthatshowsme brieflydemonstratingthatIknow how
to use Depthof Fieldwhentakingaphotograph.Depthof Fieldphotographs;
As youcan see above thisisthe firstphotographI took,and fromthisI can see that there isa large
range of focusbehindthe model asIhave adjustedthe Aperture toa highnumberandthe Shutter
Speedtoa fairlylownumber.HoweverImade all of the ISO,ShutterSpeedandAperture numbers
fairlybalancedwhentakingthissothe photodidnotshow any digital noise oroverexposure.
Currentlythe digital camerahasbrieflyfocusedonbothof the modelstocreate quite a highquality
photograph.

2. DeclanTyldesley
Above Ihave again listedanotherphotographshowingthatI can use the photographictechnique
Depthof Field.FromthisphotographIcan see thatthe image has lostquite a bitof focus range as
the backgroundhas become abit lessoutof focus.This onthe otherhandis makingthe model at
the front more infocusas the backgroundislosingfocuscontinuously.

3. DeclanTyldesley
ThirdlyIhave listedyetanotherphotoshowingaphotographictechnique of Depthof Field. The
settingsIusedto take thisphotographwere onan Aperture numberof 10 and the ShutterSpeed
was on100 of a second.FromthisphotoI can now tell the more Iadjustthe twonumbersthe
backgroundwill become more outof focusandthe model atthe front will become more infocus.On
the otherhand I have alsoappliedRule of Thirdstoeachimage by creatingone or multiple focus
points.

4. DeclanTyldesley
FourthlyIhave listedyetanotherphotographdemonstratingthe photographictechnique,Depthof
Field.FromyetanotherphotographIcan see that the range of focusisminimizingtomake ita
slightlymore interestingphotographwiththe backgroundbeingblurry.Whentakingthisphotograph
my settingswere settoanAperture numberof 8 and a ShutterSpeednumber160 of a second.

5. DeclanTyldesley
FifthlyagainIcan see that the range of focusor Depthof Fieldhasminimizedonce againdue the
fact that I have adjustedthe Aperture andShutterSpeednumbersonce again. AsIwastakingthis
specificindividual photographmysettingswere on anAperture numberof 5and a ShutterSpeed
numberof 400 of a second.FromthisphotographIcan notonlysee that itis graduallylosingfocus
but alsothat the model atthe frontisbecomingmore infocus.

6. DeclanTyldesley
LastlyI am goingto talkabout the final image Itookwhendemonstratingall of the photographic
techniquessuchasISO,Aperture etc.WhentakingthisinparticularphotographIadjustedmy
settingstoan Aperture numberof 4 and a ShutterSpeednumbertoa total of 640 of a second.Ican
nowsee that the backgroundisnot fullyoutof focushoweverIdo know thatif I continuedtoadjust
the numbersthe backgroundwouldhave graduallylostfocustoputfull focusonthe model stoodin
front.In myconclusionwhenIwastakingall of these photographsIleftthe ISOnumberatotal
numberof 200. By leavingitonthisnumberI didnot extractany daylightoutof the image andleft
everyimage almostlookingthe same despitethe lossof focusthatgraduallyhappened.