thedistrictline
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Anyone using the Sinar DB systems knows that buying second hand the lens may not always be matched to the db board it came with. I recently purchased a 180 NIKKOR w for a great price to find on the back in pencil the board was marked (210/5.6). Not a massive deal but I did get me thinking of someone somewhere must have the manual to adjust these things
Sinar themselves came through partially sending the documentation they have left. This shows how the aperture was set of the board with the correct f stop setting to match the lens. The next part of the puzzle will be to see if any documentation pops up for how to adjust the aperture to match the focal length of the lens being added to the board.
For the minimum f stop setting at least seems someone with better 3d printing skills than myself could create the small jig tool they use in the diagram then use lens boards already set to mark the tool. Ive reached out to the LFF in the US as well to see if they can dig anything out.
I leave this here also as a source for anyone in the future
Sinar themselves came through partially sending the documentation they have left. This shows how the aperture was set of the board with the correct f stop setting to match the lens. The next part of the puzzle will be to see if any documentation pops up for how to adjust the aperture to match the focal length of the lens being added to the board.
For the minimum f stop setting at least seems someone with better 3d printing skills than myself could create the small jig tool they use in the diagram then use lens boards already set to mark the tool. Ive reached out to the LFF in the US as well to see if they can dig anything out.
I leave this here also as a source for anyone in the future
