![]() ![]() While there should be adequate overlap in the presented images, more in the north-south direction than east-west, some additional scanning had to be done to compensate for less than adequate overlap in the originals. This policy was adopted both to eliminate a good deal of the raggedness of the original photographs and because of hardware limitations associated with the scanning process itself. The viewable area of each photograph which was scanned was somewhat less than the maximum available. Caution should be exercised in order that these imperfections not be misconstrued as topographic features. In many cases, tears and other flaws have been imported through the scanning process. ![]() The photographs from which the images here presented are a half century old. No claim to a particular scale is then made for the images presented. Therefore, the original scale of the photos, as inexact as it must have been, has been lost. Also, the process of converting the images to a browser compatible format resulted in an increase in image size. Scanning, even on a large format scanner such as the Vidar TruScan 500 on which these photos were scanned, is an inexact process and some graininess and distortion is to be expected. The 1951 set of aerial photographs was scanned at 300 dpi which has resulted in more graininess than in the originals. Adjacent areas of a particular point of interest may need to be viewed for completeness. The boundaries of the presented images, which are viewable by quickly double-clicking the right mouse button on the area of interest, are only approximations. Notes about the aerial photographs General Notes Geographic Alignmentīecause of the imprecise method of setting up photographs for scanning by hand, no claim is made to a strict alignment between geographic or magnetic North and the vertical direction of the presented images. Download a zip file of all 396 photos from the 1920s (346 MB).Download a zip file of all 313 photos from 1951 (251 MB).Erie County Public Works - Division of Highways Aerial Photographs ![]()
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