I have used both perkeo and Bessa cameras, and many other folders, and I never have an issue with film flatness, the answer is in the film loading, make sure when you load the film that you wind it to the start line with tension on the full roll, and you get sharpness as good as anything else from the period, but remember that these cameras are 50+ years old and you cannot expect 2014 sharpness from lenses that were designed, in many cases, 70 years or more ago, but personally I prefer what I get from these older lenses, they have a character and charm that has been lost in todays lenses, and they do a very good job indeed, as far as the Color Skoper lens is concened, I have 4 voightlander's with that lens and I think they out perform a tesser any day of the week.
With old folders, it is better to wind on the film after opening the camera - the opening action sucks the film forward and compromises flatness. If you open the bellows and then wind on, flatness is restored.
With old folders, it is better to wind on the film after opening the camera - the opening action sucks the film forward and compromises flatness. If you open the bellows and then wind on, flatness is restored.
Really? I would not think that the it is sealed enough to cause this to happen. Plus, the film is already under tension so it would have to be really strong. Not saying your wrong, just surprised that someone would have this problem.
Up-market Zeiss Ikon folders have vents in the frame (I cannot for the life of me think of the technical term for this part) that the film sits against. Cheaper folders (such as Nettars) don't. The film does not need to move far - more a case of bowing a bit in the centre - to wreck the focus.Really? I would not think that the it is sealed enough to cause this to happen. Plus, the film is already under tension so it would have to be really strong. Not saying your wrong, just surprised that someone would have this problem.
This is a informative thread for me as I just purchased a Besse I, have used four rolls so far and developed two of them which under a lope look sharp and fine. The second two rolls were taken hand held an hoping for good results also. It has a metric scale on the Skoper lens which is a challenge with no rangefinder but fun to use.
After making enlargements I will see how good I'm at in estimation of distance in the metric world.
Mike
Up-market Zeiss Ikon folders have vents in the frame (I cannot for the life of me think of the technical term for this part) that the film sits against. Cheaper folders (such as Nettars) don't. The film does not need to move far - more a case of bowing a bit in the centre - to wreck the focus.
3 meters = 10 feet (or close enough)
Have fun!
That is exactly what I mean.I think this is what you mean:
Top camera is a Zeiss Ikon Super Ikonta C (the first version from the erly 1930s).
Bottom camera is a Kodak Nagel Vollenda 620.
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