4x5 halo (was: 4x5 camera suggestions

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 13 Feb 97 at 21:13, Robert Long wrote:

> Does the 4x5 IR film also lack the antihalation coating?  I see no
> particular evidence of halos in my 4x5 negs, but it's so long since I
> used 4x5 IR that I don't remember its properties clearly.

I pondered about that some time ago....assuming it lacks the 
anti-halo layer for the same spectral reasons as 35mm (and 70mm? 
Jim?), its effect will be less on 4x5 since the halo is a fysical 
appearance, extending a certain distance given a certain amount of 
light. So the halo's should be relatively smaller; only itself equal in size 
if you blow up a 4x5 with the same factor as 35mm, but always 
relatively smaller compared to the (highlighted) subject.
--
Bye,

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<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

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