Archived posting to the Leica Users Group, 1999/07/14

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Subject: [Leica] Filters for the 75/1.4M indoors?"- Certainly! Especially for negatives!
From: apbc <apbc@public1.sta.net.cn>
Date: Thu, 15 Jul 99 12:08:49 +0800

Dan Post wrote,

>AS a photofinisher, in a one hour lab, I have to sqeak up, at this point.
The problem with balancing color negative film to tungsten, without 
filters,
is that the blue sensitive layer is usually so underexposed as to have 
very
little information on it....

Dan,

You have a good point here and your experience at the lab end is most 
valuable. 

These days I rarely print my own colour negatives but do scan them quite 
a lot where of course the same principles apply and can be seen very 
clearly on the levels graph in Photoshop. I should have added that extra 
exposure is required - but I just do it instinctively with neg films in 
such light. For 320T I find an extra 1/3 stop or 1/2 is needed: perhaps 
the problem you comment on is compounded by the fact that exposure meters 
are not quite as accurate in tungsten light as daylight and tend to 
underexpose? 

I can get as decent prints and scans from most negative films with or 
without colour correction filters but with or without these filters I 
overexpose relative to the camera meters by 1/2 to one stop. I have had 
pretty similar results both ways and my lab has no problem getting a good 
balance (on well exposed negs). With Fuji 800 I normally overexpose by 
1/3 even outdoors or the shadows go murky: good all around film though 
for photojournalism and can even make nice black and white prints if 
needed.

The other thing many people overlook when photographing in tungsten light 
is that the light tends to be overhead and creates deep shadows on faces 
&c and this needs at least more exposure and often a different angle of 
shooting to accommodate. Alternatively there is fill flash - which would 
need to be either colour corrected with an appropriate gel or else the 
yellow/orange background be the desired effect since any correction at 
the printing stage would make the flash illuminated part go too blue.

Anyhow if anything mystifies in photography shoot a lot, bracket a lot 
and learn a lot when you look at the results so you know how to handle 
these situations when you need predictable results: that is my advice! 
Film is cheaper than most anything Leica makes so spend and use and 
enjoy...

Bests

Adrian


Adrian Bradshaw
Editorial and Corporate Photography
Shanghai, China