StackShotManual_1_5.pdf - 第38页

6.2 100mm  vs.  The  Orchid  In  this  setup  example  we  have  a  Canon  7D,  EF  100mm  macro  lens ,  and  of  course  StackShot.   Figure  14 ‐ StackShot  Orchid  Setup  The  StackShot…

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6. Setupexamples

6.1 MirrorLockup

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Mirrorlock‐upisacommonlyusedfeatureinmacrophotographytoreducevibrationofthe

cameraduringshooting.SLRcamerasswingthemirrorupoutofthelight‐pathtothefilmor

sensorjustpriortotheshutteropening.Thismovementultimatelyleadstovibrationwhichcan

inducemotionblurinthepicture.Somecamerashavetheabilitytoenableafeaturewherethe

firstbuttonpressoftheshutterswingsthemirrorupandthesecondbuttonpressopensthe

shutter.ThisfeaturecanbeprogrammedintoStackShotbygoingintotheconfigurationmenu.

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ThismethodisidenticaltosettingStackShottotakemultiplepictures.PresstheCONFIGbutton

toentertheglobalconfiguration:

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== Global Config ==

> # pics: 1

Tsettle: 500.0 ms

Toff: 500.0 ms ->

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Withthecursornextto“#pics”(discussedinsection3.3.1),presstheUPbuttontochangethe

settingto“2”.Thiswillcausetheshutteroutputtofiretwotimespercamerastep.Thefirst

timewillswingthemirrorupandthesecondwillexposetheimage.We’renotquiteyetdone

though.PresstheSELECTbuttonuntilthecursorisnextto“Toff”.

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== Global Config ==

# pics: 1

Tsettle: 500.0 ms

> Toff: 500.0 ms ->

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“Toff”isthetimetheshutteroutputwillremainoffbetweenoutputpulses(seesection3.3.3for

moredetails).Inthiscase,thiswillbethetimebetweenwhenthemirrorisraisedandthe

pictureisactuallytaken.AdjustthisparameterusingtheUP/DOWNbuttonstoasuitablevalue

toletthemirrorvibrationsettleoutprior toexposingtheimage.PresstheCONFIGbuttononce

moreanditwillreturnyoutothemainmenu.

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6.2 100mmvs.TheOrchid

InthissetupexamplewehaveaCanon7D,EF100mmmacrolens,andofcourseStackShot.

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Figure14‐StackShotOrchidSetup

TheStackShotcontrollercoordinatesthecameraposition,settlingtime,exposure(and

potentiallyexposurebracketing),andautomati creturnuponcompletion.Theoptionalauto‐

returnfeatureallowsadjustmentofthecamera’sparametersandlightingwitho uthavingtore‐

positionthecamera.

FortheOrchiditwasdecidedthat“AutoStep”mode beused(seesection3.7formoredetails).

“#Steps”wasadjustedto10steps(11pictures)which wouldresultinanoutstan dingfinal

stackedimage.

Mode: Auto-Step

> # Steps: 10

Select Start Pos

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TheFWDbuttonwaspresseduntilthecamerareachedthedesiredstartingpointofthestack.

Picktheclosestobjectyouwantinfocusforthestackandmovethecamerasuchthatthisisin

sharpfocus.TheSELECTbuttonwasthenpressedtoacknowle dgethestartingposition.Then

theBACKbuttonwaspressedtomovethecameratotheendpointofthestack.Movethe

cameratothepointwherethefurthestawayelementinyourcompositionisinfocus.Againthe

SELECTbuttonwaspressedtoconfirmthefinalposition.Thedisplaythenshowedthe

following:

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Mode: Auto-Step

# Steps: 10

> Up/Down to start

Change Settings

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PressingtheUPorDOWNbuttonstartsthecapturingprocess.

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Hereisthesequence(onlysixpicturesoutofelevenshown):