Additional Lens metadata for Fujifilm GF 30mm & 110mm T/S Lenses
Utilizing metadata from previously captured images is a wonderful tool for reminding you what combinations of physical settings were on the camera that created either magic or disaster. Magic, once found, needs to be replicated at later times, so it’s always good to figure out what settings proved most beneficial and these epiphanies often arise not in initial shooting, but in the post-capture review.
Beyond the host of exposure, color and compression values stored into each file, images captured with either of the new Fujifilm T/S lenses provides an additional two categories of metadata, but unfortunately, not three.
Displayed not in the primary Metadata tab of Capture One, but in the Lens Correction tab, the Shift value of then lens is stored as well as the rotational angle of the lens on the left side within ‘Movement’.
!! No Tilt Values are produced by the Lens at all and so are not shown on the LCD of the camera nor recorded into metadata. !!
Shift Data on the LCD/EVF of the GFX camera:
Shift movements are measured in millimeters and ranges from +15mm to -15mm as the physical lens movement allows
Rotational movement is measured at the rear movement of the lens in degrees and ranges from +90º to -90º which determines what direction from the ground your shift movement has available to it.
At 0º the lens is set for Rise/Fall (Y-Axis) shifting, at -90º or +90º the lens operates for side to side (X-Axis) shifting.
Any value other than +/-90º or 0º is meant for combination X/Y-axis shifting. Soft detents are available at +/- 30º and +/- 60º, but if you find +/- 45º you’ll have your shift value equally apply to both vertical and horizontal shifting planes, with the total shift value being halved per direction.
A separate and additional 90º of rotation is available to the forward Tilt mechanism to allow tilting on either the X, Y or combination axis, but neither this movement nor the degrees of Tilt applied will be tracked in the metadata or displayed on the LCD/EVF.
Shift Data inside of Capture One
The captured images will contain metadata for these movements but is however a significantly different method of recording going into metadata compared to what shows on the LCD/EVF screen.
The LCD/EVF of the GFX shows a range between -15mm and +15mm for shift and -90º to +90º to rotation. Within Capture One however, shift is recorded as a value that does not include + or -, instead shift is shown only as a positive number, and the +/- can be determined only in relation to the specific rotation of the lens.
When shifting in -negative values (Front of Lens Falls compared to camera)
+90º as indicated by LCD/EVF results in 0º in C1 (Lens rotated fully clockwise from rear perspective – Shift Knob on top – Left/Right Shift)
+60º as indicated by LCD/EVF results in 30º in C1
+45º as indicated by LCD/EVF results in 45º in C1
+30º as indicated by LCD/EVF results in 60º in C1
+/-0º as indicated by LCD/EVF results in 90º in C1 (Blank Top – Rise/Fall Shift)
-30º as indicated by LCD/EVF results in 120º in C1
-45º as indicated by LCD/EVF results in 135º in C1
-60º as indicated by LCD/EVF results in 150º in C1
-90º as indicated by LCD/EVF results in 180º in C1 (Lens rotated fully counter-clockwise from rear perspective – Lock Knob on top)
When shifting in +positive values (Front of Lens Rises compared to camera)
+90º as indicated by LCD/EVF results in 180º in C1 (Lens rotated fully clockwise from rear perspective – Shift Knob on top – Left/Right Shift)
+60º as indicated by LCD/EVF results in 210º in C1
+45º as indicated by LCD/EVF results in 225º in C1
+30º as indicated by LCD/EVF results in 240º in C1
+/-0º as indicated by LCD/EVF results in 270º in C1 (Blank Top – Rise/Fall Shift)
-30º as indicated by LCD/EVF results in 300º in C1
-45º as indicated by LCD/EVF results in 315º in C1
-60º as indicated by LCD/EVF results in 330º in C1
-90º as indicated by LCD/EVF results in 360º in C1 (Lens rotated fully counter-clockwise from rear perspective – Lock Knob on top)
Simple, right? 😉 – BK
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