Adapting a vintage lens to a mirrorless camera produces optical quality and visual appeal that modern lenses frequently cannot match, though it also introduces issues such as purple fringing, darkened corners, and curved edges. Unlike with modern lenses, these flaws do not vanish when mounted; instead, they become manual adjustments in Lightroom, where photographers must decide how much of the lens’s original character to retain.
Jason Row of Rowtography illustrates the workflow using two adapted lenses: a Canon FD 200mm f/4 and a Minolta MD 35-70mm. Both lenses outperform expectations for their age, needing only minor corrections to achieve sharpness. The 200mm lens exhibits purple fringing along high-contrast edges—a common problem with manual-focus lenses. Since the adapter does not transmit lens data to the camera, Lightroom lacks a built-in profile. Row instead relies on the Defringe controls in the Manual tab of the Lens Corrections panel, adjusting separate sliders for purple and green fringes. After removing these artifacts, fine details like cobwebs on a railing remain undistorted.
The Minolta 35-70mm, tested on a Sony a7R V, shows vignetting, darkened corners, more prominently than on an APS-C sensor, where only the lens’s center is fully utilized. Row deliberately underexposes the image to emphasize the issue, then applies the Lens Vignetting slider. A slight adjustment brightens the corners, while the Midpoint slider controls how far the correction extends inward. Unlike modern lenses, which automatically compensate for distortion and vignetting, vintage glass demands manual adjustments.
Modern mirrorless lenses integrate software corrections directly, often embedding fixes that activate automatically in raw files. Some Fujifilm and Micro Four Thirds cameras even disable manual overrides for these corrections. Vintage lenses, however, provide no metadata about focal length or aperture. Without this information, photographers must create custom presets. Row recommends shooting a neutral subject, such as a brick wall or tiled floor, at various apertures, then saving the optimal correction values as a preset. Naming the preset after the lens and applying it during import ensures consistency across images. If a photographer prefers to retain some of the lens’s original flaws, they can reduce the preset’s intensity later.
Distortion presents the final adjustment challenge. Row demonstrates this on a 35-70mm image filled with geometric shapes, where the Distortion slider corrects barrel or pincushion effects. Pulling the slider left bows lines outward, while dragging right pinches them inward. Before applying corrections, Row levels the frame using the crop tool’s angle tool, aligning a straight railing with the grid overlay. A setting around +15 straightens vertical and horizontal lines sufficiently, though some distortion, such as wavy edges or stubborn chromatic aberration, remains uncorrected, preserving traces of the lens’s original character.
