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Re: Slit width - Distance to fim plane

>> Does any one have any thoughts or answers to how wide a slit should be and
>> how far it should be from the film plane? I have been building a camera with
>> a 24mm Nikon lens using 120 film stock and a 1mm slit placed 10mm from the
>> film plane.


You are on the good tracks. Based on my experiments with the LARSCAN I have
a slit of 1.5mm to 2mm at 3 mm from the film plane. A good and easy
materials to make the slit is the plastic exterior sheet  in wich are made
the body of the old 5 inches computer disquettes. On the same base it seems
that the rotation out of the nodal point don't affect the sharpness. This
system has some limits in sharpness, don't forget to look at your prints
without a loupe !
Michel DUSARIEZ

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  DUSARIEZ Michel
  14, avenue Capitaine Piret, B-1150 BRUSSELS - BELGIUM
  Tel : 32 2 513 21 46 - Fax 32 2 512 68 29
  <dusariez.pano.optic@xxxxxxxxx>
  http://users.skynet.be/dusariez/
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