Another interpretation is "I'm intrigued, but reserved".
Direct translations rarely manage to convey the deeper meaning.
Type: Posts; User: Ole Tjugen; Keyword(s):
Another interpretation is "I'm intrigued, but reserved".
Direct translations rarely manage to convey the deeper meaning.
I would say "similar". There are too many differences in the construction, even the brass parts are different.
A 121mm Super Angulon is inexpensive, superwide, and just barely covers straight on. A 165mm Angulon is inexpensive, very wide, and covers at small stops - with soft corners, but not that you would...
The 150mm Symmar covers only slightly better than an ancient 90mm Angulon: It will get you a picture if you have nothing else, but the corners range from soft to absent. With the right subject I...
If I could remember, I could tell you. But I can't, so I can't!
On the other hand I do remember that I sold it more or less locally - so the transaction was in norwegian Kroner. The official...
If I remember correctly, Zeiis made 9 different Protars, and two of the "Series" were re-used for different designs. That's 11 different types of Zeiss Protar. Add the licensed products from B&J,...
Ian, Dan answers 100s of these questions every year. Anyone could do a search here on this forum, and found out that calling a lens just a "Protar" is almost as useless as calling it a "lens".
...
Another possibility is that your ground glass could be very slightly out of position. That would only be visible on the final print/negative with a lens used at a large aperture, like a f:3.7...
A 210mm Angulon has plenty of coverage, a 165mm just adequate, and a 120mm will cover at VERY small stops. With a Russian 18x24cm plate camera they are all useable. I have used a 121mm Super Angulon...
I don't think that's an RR - it isn't sharp enough!
I woudl guess at a triplet, or maybe HALF an RR?
On the other hand, it looks to me like the aperture is too large for a half RR. So I'll go...
Remember that there is also a tendency to lump everything into Compur 2, if it isn't one of the other "standard" sizes.
I have the full set of convertible Symmars, and the 360/620mm when converted can JUST be focused to infinity on my large antique 24x30cm camera - with a bellows draw close to 1m. Not a thing to plan...
I have one of those too - except mine is a 240mm. Decent performance, a good Aplanat (not RR, there are subtle differences even if the basic design is identical).
Not quite. The old Schneider Symmar convertible lenses were optimised for 1:3 instead of 1:10 or 1:infinity. That was done as a compromise, in an attempt to make a lens that would work equally well...
The VM is wrong in this case, it really IS a 3-in-2. I have one too, and my books all agree with my lens. Cemented pair in front, single meniscus behind.
It's surprisingly good at small stops, and...
"Back focus"? I would assume the focal length is around 10" - 240mm to 300m max. Back focus isn't all that helpful.
The Compound shutter sizes are in the post linked to in my signature - I keep it there so I can find it myself!
The best "donor lens" for a Heliar 21cm would be a Schneider Xenar 21cm (210mm) of about the same age. Price would most likely be less than for the shutter alone, and buying a shutter with Xenar you...
An Angulon with separation in the front cell is well on the way to become a doorstop - except that it is too small and light to do a good job at that.
It's only the cement holding the lens...
An old 210mm Angulon will almost cover at infinity - corners are soft, but not enough to be a problem on a contact print. At 3m distance, it will cover just fine (at small apertures).
Keep it simple: Get any working camera, and any lens with a working shutter and a focal length somewhere from 150mm to 210mm.
Play with that a while, then you will know what you want.
Since...
Only one???
Oh well - if casket sets are out, then I'd take a 240mm Symmar convertible. Just to have two in one.
Found it at last: http://www.bruraholo.no/Cameras/Angulon/
Central sharpness is pretty good on both the 1939 and the 1951 models, I'd say. If your Angulon delivers unsharp negatives, there's...
A pre-WWII Angulon 90mm would almost cover 5x7" by the then current definition of "cover": For contact prints.
1950's and later Angulons have a larger sharp image circle at larger apertures, but a...
Focal length in cm rather than mm was more common during the time of the Weimar Republic, starting 1919.
I can't remember what Zeiss used before, or when they switched - if they did?
shutter...
I put down 6.
For 4x5" they're likely to be 47, 65, 75, 90, 120, 150, 210mm
For 5x7" most likely 75, 90, 121, 150, 210, 300mm
For 8x10" 121, 150, 210, 300, 360, 420mm
Or a Speed graphic with...
Angulon 165mm, but that's a "special" for wide-angle. And some Symmar 180mm f:5.6
Just about any 240mm f:4,5 of that age came in a IV shutter.
The 210/3.5 Xenar should be, but the 165/6.8 Angulon is usually in a #2 shutter. Even the 210/6.8 Angulon only takes a #3 shutter,...
If it originally held a Symmar 360mm f:5,6 convertible, I think it's a V, not a IV.
A Xenar 300mm f:4,5 should fit, as will most other 300/4.5 of around the right age and origin.
No, as the tables show clearly a 4 is bigger than a 3.
I can assure you that is cannot, at least not without some VERY expensive machine work (and in the case of a Heliar, even that won't help...
So it is; and that's why the 360mm Symmar looks like a normal lens: It is the "normal lens" for this format.
The 120mm ones would be the ones which are large enough to fit a 360mm Symmar Convertible - without removing the rear cell before mounting.
Like this one. 80262
A "standard casket set" contained 7 cells: 15, 25, 35, 45, 55, 65, and 75 cm focal lengths.
While the shortest combinations wouldn't cover 18x24cm, it was common to use format reducing inserts to...
It's what it says on the box lid - "Rodenstock Bistigmat Objektivsatz"
Meaning that it's a casket set of Bistigmat lenses. Looks like there are 7 single lenses of different focal lengths.
As a rough guide, insert thirds between f:8 and f:11. 8 +1/3 stop = f:9, 8 + 2/3 stop = f:10.
4.5, 6.3, 9, 13, 18, 25, 36, 50, 72, 100 and so on should be familiar to all who use old German lenses...
Or Isconar, or even all of ISCO Göttingen.
"H" is for HyperGon.
If the holes are 10, 8, 4 and 2mm and the focal length is 100mm, then the apertures are as follows:
100/10 = 10
100/8 = 12.5
100/4 = 25
100/2 = 50
So f:10, f:12.5, f:25, and f:50.
Do not...
Except that there IS a slight change in the lens. Pre-1960's Angulons do have a larger image circle, if the purpose is contact prints. The design tweak gave more even sharpness over the advertised...
Here's a Xenar example, shot wiide open with lots of swing and a touch of tilt, 300mm f:4.5 Xenar on 5x7" film:
73365