The straightforward approach is the take the image of the site and carefully measure the actual width on the ground from edge of the frame to the edge of the frame. For example, suppose the site being pictured is 1/4 mile wide ( 1760 feet ). A wind turbine sited there will be about 1/4 (400/1760) of the width of the scene. If the print is 8" by 12" ( assuming a 35mm frame proportions in the original image ) then the turbine images will be the same ratio in height, or just under 3 inches high when placed in the image. Then you can scale the image to whatever final size is needed. Cheers, James -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxx] On Behalf Of ADavidhazy Sent: Sunday, March 21, 2010 9:30 AM To: List for Photo/Imaging Educators - Professionals - Students Subject: How tall should the turbines be? Hi, I received the following inquiry or request for assistance. I think this is something valid to consider. There are several approaches to the solution. If you were asked this question how would you answer? Several faculty members at RIT could not answer this though!! ----------------------- begin ------------------------- I'm working on a story about the proposal by the NY Power Authority to build wind farms in Lake Ontario and Lake Erie. What I want to do is produce a photograph, or series of them, showing how the view from the shoreline would change if 400-foot-tall turbines were erected in the lake. We'd Photoshop-in the turbines (with proper disclaimers), but want the image to be as accurate as possible. I'm wondering if you might might help us. We need to know how "big" to make the turbine appear in the photo. Any thoughts would be helpful. Thanks. ----------------------- end ------------------------- What is needed is a step-by-step guide that anyone who by their self admission is math phobic. I may reveal my answer(s) if anyone is interested. andy
