I am a complete newbie in the large format but have done quite a bit of 35mm and medium format b/w work. I have started using an 8x10 view and 4x5 Graphex camera and am doing something wrong.
I don't have a separate exposure meter so have used my OM-4 with the normal 50mm lens to meter the subject, using the same film speed as in the large format camera. I then used the exposure indicated on the 4x5 camera. However, all negatives are coming out extremely underexposed and thin I have used a tank method to develop the negs, using the same techniques (agitation, etc) as with other formats. The details are:
Film - Kodak Professional TMax 100 w/ recommended dev time of 8.5 minutes (exp 3/06)
Camera - Graphex 'Crown Graphic' w/ 135mm lens
Developer - Clayton F76 1:9
Are there any obvious errors in my methods or equipment that stand out? Any ideas would be greatly appreciated.
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