 Posted: Fri Jun 10, 2022 8:54 pm Post subject: |
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eggplant wrote:
Commentary
The more I look it up, the more ephemeral this camera seems- and very expensive for the time! Came all stapled together in one corner. As you can probably tell the prices and Interval timer sheet are quite thin paper.
You might have come across a Shackman recording camera before on eBay- indeed I initially filed it away thinking it was just one of these:
 blue one 'most common' (that I've seen)
It obviously turned out to be a fair bit more uncommon (and not these!). I have never seen this reflex model before.
It is still motor driven 'auto' camera. I don't see any eyepiece, probably just a ground glass screen.
"The solenoid-operated reflex mirror also acts as the shutter."
"If it is required to utilise lenses of very short back focus distances, which would normally foul the reflex shutter, an alternative shutter can be supplied enabling lenses with as short a working distance as 13/16" to be used".
I am guessing this is 13/16 of an inch (thirteen sixteenths of an inch) which would give a back focus of 2.063cm!
Given how other Shackman auto cameras are pictured/sold with the Wray 2 inch f/1.0 4:1 copying lens, I imagine this is what they had in mind..
You might think 1200dpi is abit excessive for plain text on paper, with no diagrams to be seen, and I agree. But it pretty much captures everything there is to see. If I did it at 600dpi I would want to do another pass in the future at 1200dpi, and I'd rather not double the work. The pages compressed down well enough (10mb~) with little effort/no loss in IQ, with the option to go even further when I do a detailed 'compression' pass in the future. |
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