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Farside
Joined: 01 Sep 2007
Posts: 6557
Location: Ireland
Expire: 2013-12-27
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 Posted: Tue Aug 04, 2009 5:40 pm Post subject: Welta 9x12 with Trioplan 15cm f:3.5 |
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Farside wrote:
They say size isn't everything, but it sure helps.
Welta 9x12cm with Meyer Gorlitz, Trioplan 15cm f:3.5 in Compur shutter.
This must have cost somebody an arm and leg when new.
And handily enough, the Rada rollfilm back I bought for the other one (and didn't fit), fits this, although I had to trim away some of the leatherette covering to reduce the thickness of the back sliderails. The Rada back was obviously meant to fit the metal-backed cameras like this, so I imagine many owners had to do similar.
It's a bit dog-eared at the moment, but will clean up nicely and I look forward to getting some pics out of it. It came with two plate holders, minus film inserts, but that's not a major problem now that I can run some 120 through it, as soon as tomorrow.
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Last edited by Farside on Tue Jul 20, 2010 6:09 am; edited 1 time in total |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Tue Aug 04, 2009 5:57 pm Post subject: |
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Katastrofo wrote:
Dave, 'tis a handsome beast, looking forward to those 120 shots! |
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PaulC
Joined: 23 Dec 2008
Posts: 2318
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| Posted: Tue Aug 04, 2009 6:41 pm Post subject: |
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PaulC wrote:
That's a great looking camera, with a nice fast lens.
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Nesster
Joined: 24 Apr 2008
Posts: 5883
Location: NJ, USA
Expire: 2014-02-20
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| Posted: Tue Aug 04, 2009 7:25 pm Post subject: |
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Nesster wrote:
Hot dog! What a beauty, that is very intresting indeed.
How do you arrange focusing with the 120 back?
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Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
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| Posted: Tue Aug 04, 2009 7:42 pm Post subject: |
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Attila wrote:
How cool Dave! I can't wait to see it's result!
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Tue Aug 04, 2009 8:03 pm Post subject: |
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Jesito wrote:
What a gem!. It's very well conserved, hope the performance will be as good as it's nice looking!.
Enjoy it!
Jes.
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Farside
Joined: 01 Sep 2007
Posts: 6557
Location: Ireland
Expire: 2013-12-27
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| Posted: Tue Aug 04, 2009 9:05 pm Post subject: |
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Farside wrote:
Thanks all, it's verra verra nice. I've been exercising the shutter and it's freed up beautifully, but the slowest marked speed of one second is remaining stubbornly fast at 1/4 sec- but if I turn the camera on its side it's ok. 
| Nesster wrote: |
Hot dog! What a beauty, that is very intresting indeed.
How do you arrange focusing with the 120 back? |
I can use it on a tripod with the ground glass, or use the scale focus at the side - which I'll have to check the accuracy of.
One thing I've found is the min aperture is f:12.5, seems very odd. Maybe there's a good reason for that.
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Dave - Moderator
Camera Fiend and Biograph Operator
If I wanted soot and whitewash I'd be a chimney sweep and house painter.
The Lenses of Farside (click)
BUY FRESH FOMAPAN TO HELP KEEP THE FACTORY ALIVE ---
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PaulC
Joined: 23 Dec 2008
Posts: 2318
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| Posted: Wed Aug 05, 2009 8:14 am Post subject: |
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PaulC wrote:
So it goes from f3.5 to f12.5? Perhaps the "speed" of the plate emulsion in those days was so slow that anything darker than 12.5 was useless.
Do you know how old it is? It looks pre-30s.
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Farside
Joined: 01 Sep 2007
Posts: 6557
Location: Ireland
Expire: 2013-12-27
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| Posted: Wed Aug 05, 2009 1:19 pm Post subject: |
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Farside wrote:
I'd assumed it was slightly later than the other wooden-bodied Welta, which I'm fairly sure is c.1928, and that has stops from 5.4 to 36. Then again, that's a much smaller lens, a mere 24mm in diameter.
I suspect the restricted aperture range is to do with the oversized nature of the whole assembly, it perhaps being difficult in those days to make a reliable wide range of apertures with the shape of the blades being dictated by the throat size, in this case 44mm dia.
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Dave - Moderator
Camera Fiend and Biograph Operator
If I wanted soot and whitewash I'd be a chimney sweep and house painter.
The Lenses of Farside (click)
BUY FRESH FOMAPAN TO HELP KEEP THE FACTORY ALIVE ---
Foma Campaign topic -
http://forum.mflenses.com/foma-campaign-t55443.html
FOMAPAN on forum -
http://www.mflenses.com/fs.php?sw=Fomapan
Webshop Norway
http://www.fomafoto.com/
Webshop Czech
https://fomaobchod.cz/inshop/scripts/shop.aspx?action=DoChangeLanguage&LangID=4 |
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Nesster
Joined: 24 Apr 2008
Posts: 5883
Location: NJ, USA
Expire: 2014-02-20
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| Posted: Wed Aug 05, 2009 1:48 pm Post subject: |
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Nesster wrote:
Spying the Compur serial# 47xxxx I look up the years 1920-22 as the manufacture year.
Re the stops, if this is such an old camera (I'm in awe) the stops may be indicated in some other system:
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Sevo
Joined: 22 Aug 2008
Posts: 1189
Location: Frankfurt, Germany
Expire: 2012-12-03
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| Posted: Wed Aug 05, 2009 3:09 pm Post subject: |
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Sevo wrote:
| PaulC wrote: |
So it goes from f3.5 to f12.5? Perhaps the "speed" of the plate emulsion in those days was so slow that anything darker than 12.5 was useless.
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Film was not that slow back then - it was no accident that they already had shutters reaching down to 1/200 to 1/500s. Fast films post WWI were in the ISO 100 range, and more than f/12.5 would have been quite desirable even with the then regular ISO 12 films.
On many plate folders of similar construction the aperture is offset from the optical node of the lens for reasons of better collapsibility - and offset apertures cause a focus drift which limits the practically useful aperture range.
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Wed Aug 05, 2009 10:38 pm Post subject: |
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estudleon wrote:
I love this camera. It's wanderfull. Like a beautyfull woman.
And love the lens too.
Where are these cameras ?????
Congratulation, lucky man!
Enjoy 
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