comments please
The hard border between the full colour and monochrome noise images doesnt work for me.
An alpha blend between the colour and monochrome images might be better. ( and would alow more control over where the blend happens )
Sporran
PS: if the intention is to split the image into a “now” and “then” theme, playing with the brightness/contrast of the older section may re-enforce the theme. Most period photo’s i have seen seem to have less mid tones and a higher contrast. ( maybe something to do with the emulsions used )
lol fancy college talk
Thanks, dunno what you mean , but thanks
heheheh
lol ok.
Alpha blending quickie.
You have two images, one colour, one monochrome.
Superimpose them.
Use a third image to control how they mix ( called the alpha mask)
This third image is applied as an alpha channel on the top image and controls the transparency of the top image.
Sporran
if you use Photoshop double click on layer for see blending options
Most period photo’s i have seen seem to have less mid tones and a higher contrast. ( maybe something to do with the emulsions used )
Exactly so Sporran.
The slower the speed of the film stock the greater the contrast of the negative (everything else being equal) and outside shots have very high dynamic range lighting
They were working with slow-response 25-50 ASA back then (something low anyway) rather than the fast-response 400 ASA we’re using
That type of film has very high resolution though, while 400ASA is very grainy by comparison, as in Phil’s shot at right
Interesting for skinners, we’re also using panchromatic film these days which more-correctly gets the tones of a black-and-white shot closer to reality. Back then response was skewed so that vintage black-and-white shots give an incorrect bias to tones, making it seem to us as if some colours were brighter or darker than others (incorrectly, compared to other tones) in shots of badges, camo and emblems. Reds would look brighter in B/W and blues would look darker than in reality. Or the other way around without stooping to googling 
Bromide back then of course had other uses than photography… more tea Vicar?
Ming
I think this would work well with a smoother transition Phil, have a crack and let us see how you get on
+1
Yes, can give very confusing effects. For example I have seen old B&W photos that contains the swedish flag (blue with yellow cross) on them that looks like it would be inverted (yellow with blue cross). I don’t remember how old that picture was, probably early 1900’s (might have been from when we let Norway go in 1905 or something like that).
Sorry to be late on post …
There were similar problems with type C1 roundels - that outer yellow ring should be black or dark grey.
Phil, are you using PS, and if so which version?
I uses CS3 extended, this effect can be replicated with a B/W adjustment layer, and dragging yellow to one end (low end?).