duncdives

<p>Brilliant responses from you forum members. Thank you very much for taking the time to explain, and even produce visual examples.<br> I think the trial and error approach will be my chosen method. I have already been out with copies of the postcard pictures to try and attain the original viewpoints. Some of which are proving very difficult to find due to property development and tree growth.<br> At least I do have some faith now that I should be able to replicate the field of view for those that are not too dramatically different.<br> Out of interest, the project is based on Photographs of WW1 recruits and their training camps which were set up in my village during August and September 1914. The pictures have been lent to me by village members and I have been restoring some of them as a thank you. I figured the comparison of 'then and now' would be a nice added extra for them. As regarding any potential copyright issues, the project is a not for profit venture and the end results will only be visible to village residents at a presentation in November this year. Given that the photographs are 100 years old, I was under the impression that they would be out of copyright anyway.... Please correct me though if you believe this may not be the case.</p><div></div>

<p>Thanks guys for your input. I know that some of the comments you have added may sound obvious to some, but they are accepted as definite considerations.<br> One thing i was mulling over though was how would a different focal length and film size behave with respect to the original image in regard of the perspective compression?<br> We all know that longer focal lengths give more compression, but what effect does the negative/sensor size have on this?<br> With some of the original images i am replicating there are some very obvious results of this compression effect. I doubt very much that a lens of any real length was used (or even available in 1914) so is this likely to be caused by the large plate size? </p>

<p>Anyone possibly offer any help for me on this question i wonder?<br> I have a collection of old postcard images of my local area and would like to recreate the same image to show a comparison between 'then and now'<br> The original images are around 100 years old so i know they will have been taken on a plate film camera, but i'm not sure what the typical plate size may have been in the early 1900's.<br> There are a number of fixed items of infrastructure on these early images that i can used as an anchor point on the 'today' images, so that if i display the two as a slideshow with fade transition the old picture should hopefully fade to the new picture with as much detail as possible in registration with where it is between the two images.<br> My question is how do i know what focal length on a 35mm format will match as closely as possible to that of the larger format plate camera, or is it just a case of trial and error?</p>