Hasselblad H2F User Manual

Also see for H2F -: Datasheet User manual

Contents

Hasselblad H2F User Manual Manual pdf 24 page image

2478910Lens focus setting too farbeyond the distance of thesubject framed by the centralsection in the viewfinder11Focus setting too close forthe distance of the subjectframed by the central sectionin the viewfinder12Focus setting correct Automatic focus settingFocus is correct when both arrowheads are visible together. Focusis incorrect if only one arrowhead is visible. If the focus cannot beestablished, then both arrowheads flash.Manual focus settingWhen the left arrowhead alone appears it means the focus settingis too far beyond the chosen distance (the area framed within thecentral zone in the viewfinder) and when the right arrowheadalone appears it means the focus setting is too close. Focus is cor-rect when both arrowheads appear together. If the focus cannotbe established, then both arrowheads flash.Focus aidAs well as the conventional view on the focusing screen to ensurea sharp image, the H2F also features LED focus aid appearing astwo arrowheads to the right of the viewfinder display (except forlenses with a maximum aperture of f/6.7 or smaller). The arrow-heads provide confirmation of a precision focus setting and are auseful aid when making a setting with eyesight alone.Infrared focus settings 9As infrared rays form an image at a different plane to that formedby visible light, the normal focus settings do not apply. Proceed asfollows in manual focus mode:1. Focus the lens in the conventional manner until satisfied.2. Note the distance setting against the central lens index.3. Re-align this distance setting against the infrared mark(coloured red) instead of the central lens index.Alternatively if you have already calculated the required distance,you can make a manual distance setting by using the distancescales together with the infrared mark instead of the central lensindex.Stop down /depth-of-field 8A visual depth-of-field preview can be made by depressing the STOPDOWN button while viewing the image on the viewfinder screen.Depth-of-field can be calculated as follows:1. Focus the lens as required.2. Make an exposure reading (auto or manual) and note theaperture setting.3. Find the markings on either side of the central index that cor-respond to the chosen aperture.4. From these two markings, read off on the required lens dis-tance scale the two corresponding distances.5. The depth-of-field (at that particular aperture and focus set-ting) will be the area included between these two distances.In the example given here, the focusing distance is set at nearly 3metres. At an aperture of f/22, the depth-of-field would thereforeextend from just over 2 m to approx. 4.5 m.Depth-of-field calculation 7There are two distance scales (in feet and metres) visible throughthe focus distance window on the upper part of the lens barrel.There is also a central lens index mark and a depth-of-field scale.The focusing distance is read off the chosen scale from the centrallens index.