Obscure Fuji f5.6 300 "S"
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Old 02-09-2015   #1
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Default Obscure Fuji f5.6 300 "S"

I have recently come across a Fujinon 8x10 lens, a 300mm f5.6 "S". No one seems to know much about it. I have a number of Fuji lenses and catalogs and know nothing. I've checked all the usual posts/threads/blogs/forums out there. It appears to be a Tessar from the late 60's or early 70's, single coated, silver front Copal #3, a sort of updated 12" Ektar. Curious as to whether it was a process lens put into a shutter, a non exported lens, a precursor to the "L" series or just an early design. Thoughts.....?

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Old 02-10-2015   #2
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Default Re: Obscure Fuji f5.6 300 "S"

IIRC it's not a Tessar, it's a Symmar ... but not a Symmar-S.

More like the earlier convertible Symmar. It might even be
convertible even tho it lacks a secondary f-stop scale. The
silver ring should be threaded and removable, either as a
filter retaining ring, or just kept in place to avoid denting
the rim [from accident] when no filter is in place.

It's definitely not a process lens. 5.6 is way faster than any
300mm process lens I've ever encountered. Also, it's just
shaped all wrong [again, IIRC] with lens cells that that swell
outward for a greater image circle, yet "choke down" to a
rather narrow waist thus allowing use in a leaf shutter. A
true flat field process lens of 300mm is usually too fat in the
middle to be fitted into a general purpose shutter. Process
lenses are not designed to have large image circles relative
to their FL. They gain a larger image circle simply by being
used at far greater bellows extensions, working in the 0.5X
to 2.0X magnification range [compared to typical infinity or
portrait applications]. They're great for table-top studio
stuff, but you don't need a shutter for that.

I've used some Fujinon enlarging lenses, which are basically
same as process lenses, and some Fujinon medium format
lenses. Farz I can tell, Fuji had no economy versions, every
lens was close to state of the art for it's time and purpose.
IOW, if it's in good shape and priced fairly, grab it. But don't
ask me what "priced fairly" means !



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Old 02-10-2015   #3
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Default Re: Obscure Fuji f5.6 300 "S"

This is what it looks like.
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Old 02-10-2015   #4
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Default Re: Obscure Fuji f5.6 300 "S"

Supposedly the Fuji "L" line was for a short while the economy lineup of Tessar design lenses. On another board someone has suggested that the "S" means a Copal 3s shutter which differs from the 3.
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Old 02-12-2015   #5
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Default Re: Obscure Fuji f5.6 300 "S"

I commented on the lens from my
best recollection of it from decades
ago. Despite the photo, I still have
only my recollections to go by. The
head-on view in the photo reveals
nothing about the likely design of a
lens. Side view would be a lot more
informative design-wise.


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