diff. between angulon/super angulon

[rebecca1]

Other than the f stop and the weight, what if any, is the difference

bweteen the Schneider-Kreuznach 90 mm Angulon and the

Schneider-Kreuznach 90mm Super-Angulon?

coverage?

resolution?

contrast?

[ted_brownle]

The primary difference is coverage. The Angulon is an earlier design,

introduced in 1930. It has an 85 degree angle of coverage. The

maximum aperture is not well-corrected at stops larger than F/16.

Maximum aperture is useful only for focusing.

 

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The Super Angulon was introduced in 1957 as an F/8 lens. It's

coverage is 100 degrees.

[neil_poulsen1]

I've had both a 120mm Angulon and the 121mm Super Angulon. You get a

much sharper image with the latter, and huge coverage. The 121mm will

just cover 8x10 on axis.

 

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There's also a difference in age. Even though my Angulon appeared to

be in about the same condition, fungus was just beginning to appear in

the lens when I sold it. (Note that I pointed this out to the

photography store that sold it on consignment for me so that they

could inform potential buyers.)

[phil_brammer]

I have both 90mm lenses. The angulon, as said previously, has less

coverage than the super angulon (focus across the frame is not as

even as the super) and the angulon has more light fall of on the

edges (i did use mine for 6x17). The angulon is also uncoated (prone

to more flare). However, the angulon, i found, was an exceptional

lens even at 6x17 for sharpness when stopped down (of course i still

had unacceptable light fall off). I purchased a super angulon as i

could use larger apetures (if i really needed), have less fall off

and less flare effect from internal reflections. In my opinion if you

shoot 4x5 or less and are not worried about the uncoated lens use an

angulon if you find a good one.

[kcrisp]

Even some fairly early Angulons are coated, based on the ones I have

seen. Serial numbers from the early 50's are coated. Quality on

these seems highly variable from sample to sample, especially early

in the production. Some are reasonably sharp when stopped down, edge

to edge. Some are very sharp in the middle, not very on the edges,

you get what you get and if buying used, it is worth getting the

chance to try it out.

[wayne_crider4]

Just a mention, although not necessairly pertinent to this thread, is

the additional info concerning filter sizes and rear element

diameters. Many of us shoot older cameras of the Graphic make, and

some of the rear elements won't go thru the front standards. Also,

filter sizes on lenses of larger maximum diameters can approach 100mm,

possibly causing an additional outlay not expected.

[tedharris]

There rae major optical differences betweent he two lenses.

The following response authroed by Richard Knoppow in

response to a similar query in another forum sums them up

nicely:

 

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"The Angulon and Super-Angulon are different designs. The

Angulon,

which was patented in 1930, is a variation of the Dagor type. It

consists of three cemented elements in both front and back

cells. The

outside elements are made extra large to reduce vignetting

which is

the cutting off of light by the body of the lens. The front is

slightly stronger than the back cell to give better correction for

objects at distant focus. Angulons were made until about the

1970's.

post WWII ones are coated, pre-war ones are not. Angulons

seem to be

highly variable in quality. A good one will hvae about 90deg

coverage

when stopped down to about f/22 or smaller.

The Super Angulon is a much newer design featuring some

air-spaced

elements. The number of elements varies depending on the

speed and

coverage. In general, the coverage is larger than the Angulon

(more

than 100deg) and the quality is much better. Super-Angulons

have been

made since the early 1950's and _all_ are coated. The early

ones have

single coatings, later ones have multiple coatings. The coating

affects contrast by reducing flare. It does not affect the

corrections or resolution in any way except indirectly by allowing

lens designs that would be too flary without them. The higher

contrast may also give the perception of greater sharpness.

Super-Angulons (and the similar Rodenstock Grandagon) have

the

disadvantage of being large and heavy."

 

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Contact me privately if you want more info.

 

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Ted