User manual HASSELBLAD POLA PLUS

[. . . ] simply put, the adapter expands the diameter of the projected image circle at the film plane. This allows for much greater freedom in "placing" the image area within the now much broader circle before vignetting takes effect. and most importantly, all this happens without moving the orientation of the camera in relation to the subject. [. . . ] so if verticals, for example, are acceptable in the viewfinder, they will remain so whatever the amount of shift to include the "hidden" parts of the image. "Tilt" differs from shift in that the normal perpendicular orientation of the lens to the film plane is changed resulting in a change in the plane of focus. This means that at any given aperture/focus setting, the depth of field in the subject will not remain as simply the space between two measured points from the camera as is normally the case, but increased or decreased. By combining these two laws of physics, the doors of creative solutions are thrown wide open. The list of situations that could advantageously exploit tilt and shift is probably longer than it might first appear to be. for some professional photographers it could rapidly become an essential item for all work. Large-format users have been using tilt and shift for many years, partly because they could, but partly because they had to. some photographic solutions unfortunately, have also created problems, lens edge performance, for example, being one of them. The hTs 1. 5 is not compatible with: The h1, 7X converter The Cf lens adapter hC 50-110 mm hCd 35-90 mm hC 120 mm autofocus / focus confirmation (disabled) www. hasselblad. com TILT and shIfT adapTer COMpaTIBLe Lenses and eXTensIOn TUBes hCd28, hC35, hC50, hC80 and hC100 extension tube 13mm, 26mm and 52mm HC35 + HTS 1. 5 at f/16, 5 degrees tilt www. hasselblad. com TILT and shIfT adapTer MTf perfOrManCe 10, 20 and 40 lp/mm The diagram shows lens perfomance over the full enlarged image circle. dashed lines in the diagrams shows the tangetial performance. MTF (%) f/6. 3 100 80 MTF (%) 60 40 20 100 80 60 40 20 0 10 20 30 Image position (mm) 40 0 0 10 f/11 hCd 28mm @ infinity 0 20 30 Image position (mm) 40 f/5. 6 100 80 MTF (%) MTF (%) 60 40 20 100 80 60 40 20 0 10 20 30 Image position (mm) f/5. 6 100 80 MTF (%) MTF (%) 60 40 20 100 80 60 40 20 0 10 20 30 Image position (mm) f/4. 5 100 80 MTF (%) MTF (%) 60 40 20 100 80 60 40 20 0 10 20 30 Image position (mm) f/5. 6 f/11 hC 35mm @ infinity 0 40 0 0 10 20 30 Image position (mm) f/11 40 hC 50mm @ infinity 0 40 0 0 10 20 30 Image position (mm) f/11 40 hC 80mm @ 2m 0 40 0 0 10 20 30 Image position (mm) f/11 40 100 80 MTF (%) MTF (%) 0 10 20 30 40 60 40 20 100 80 60 40 20 0 0 10 20 30 40 hC 100mm @ 2m 0 Image position (mm) Image position (mm) www. hasselblad. com TILT and shIfT adapTer MOVeMenTs The lens can be shifted 18 mm, either upwards or downwards, and it can be tilted 10 degrees up or down. Tilt and shift can be combined according to the diagram. hTs settings are presented on camera grip LCd and are also embedded in the image file. Max tilt angle (degrees) MaXIMUM TILT The graph shows the maximum amount of tilt that can be used without vignetting as a function of the amount of shift used. format 36×48mm. 10 Landscape mode Portrait mode 8 6 4 2 0 0 5 10 15 Shift (mm) www. hasselblad. com TILT and shIfT adapTer MOVeMenTs - rOTaTIOn The hTs 1. 5 adapter can be rotated 90 degrees to the left or right to enable free placement of sharpness plane and shift direction. www. hasselblad. com TILT and shIfT adapTer HC80 + HTS 1. 5 at f/11, 10 degrees tilt www. hasselblad. com TILT and shIfT adapTer Use Of shIfT for perfect parallel vertical lines in the image, the camera needs to be parallel to the subject. But by shifting the lens parallel to the image plane, you can raise or lower the view without tilting the camera. If the subject is a building as in this example, the camera should be placed level. Camera positioned level. The roof of the building is outside the area projected onto the sensor (HC28 + HTS). The complete camera tilted upwards to include the top of the building results in converging vertical lines in the image. The camera positioned level again with an upward lens shift of 9 mm applied results in parallel verticals. www. hasselblad. com TILT and shIfT adapTer Use Of TILT By tilting the lens in relation to the image plane, you can effectively tilt the plane of sharpness in the subject. depending on your idea of the final image you can either use tilt to enlarge the apparent depth of field or reduce it. The full image HCD28 + HTS 1. 5 at f/11 No lens tilt produces some lack of sharpness in the foreground and background, partly due to insufficient depth of field. Lens tilted a few degrees to the right produces an image with perfect sharpness from the foreground to the background. Lens tilted a few degrees to the left produces an image with an apparent shallow depth of field. www. hasselblad. com TILT and shIfT adapTer sTITChInG The hTs 1. 5 lends itself extremely well to automatic stitching to create a panoramic image in super high quality. [. . . ] The roof of the building is outside the area projected onto the sensor (HC28 + HTS). The complete camera tilted upwards to include the top of the building results in converging vertical lines in the image. The camera positioned level again with an upward lens shift of 9 mm applied results in parallel verticals. www. hasselblad. com TILT and shIfT adapTer Use Of TILT By tilting the lens in relation to the image plane, you can effectively tilt the plane of sharpness in the subject. depending on your idea of the final image you can either use tilt to enlarge the apparent depth of field or reduce it. The full image HCD28 + HTS 1. 5 at f/11 No lens tilt produces some lack of sharpness in the foreground and background, partly due to insufficient depth of field. Lens tilted a few degrees to the right produces an image with perfect sharpness from the foreground to the background. Lens tilted a few degrees to the left produces an image with an apparent shallow depth of field. www. hasselblad. com TILT and shIfT adapTer sTITChInG The hTs 1. 5 lends itself extremely well to automatic stitching to create a panoramic image in super high quality. With most subjects it will be impossible to detect any dividing line between the separate images. [. . . ]