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AGFA Agnar & Apotar Lenses - Difference?


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Dean W's excellent monochrome pix taken with his c. 1958 Silette with

the humble f2.8 45mm Color-Agnar, have reminded me of something that

I've never got to the bottom of, and maybe this is a timely moment to

bring up. Just what is the difference between the Agnar and Apotar

lenses from AGFA? They're both 3-element Cooke triplet types, and

in some cameras the Apotar is faster than the Agnar, but Dean's 1958

Silette was offered with either an f2.8 Color-Agnar or Apotar. The

Agnar seems to have invariably been the cheaper alternative, no

matter what the model. I once read of somebody's theory that

they're actually the same lens, with the ones that tested better

labelled as "Apotar" and the rest as "Agnar" - although Dean's

efforts tend to disprove that! Maybe somebody in our erudite Forum

can throw some light on this? PN

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compliments of google-

 

 

The Apotar was a redesign of the Agnar lens and used 'new glasses' which were available in the 50s. These new optical glasses allowed for better chromatic correction and were helpful to reduce some other lens aberrations, too. The Apotar seems to perform a bit better than the Agnar.

 

Agnar lenses were still used on some cheap Agfa cameras in the 60s when the Apotar was already released.

http://www.kyphoto.com/classics/forum/messages/674/1443.html?1057325683

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Don McKeith wrote: "The Apotar was a redesign of the Agnar lens and used 'new glasses' which were available in the 50s."

 

Yes and no. The Apotar was available already in the mid 30s.

 

I don't know the story of Agnar though. Maybe it was a redesign of Agfas simplest triplet Jgestar?

 

Before the war you could buy an Agfa Record 6x9 with Jgestar, Apotar or Solinar. After the war the lenses were Agnar, Apotar and Solinar.

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On the Apotar, one of the elements is made from rare-earth glass, which in this case means the glass contains barium. On post 1950 lenses, the Apotar has a superb, hardened, anti-reflective coating. The previous Steinheil Apotar was soft coated and not as sharp, in my opinion.

 

As mentioned beginning in the 1930's, the Apotar was Agfa's designation for its second tier lens. Prior to the Solagon, the Solinar held the number one spot.

 

I have a late 105mm Apotar from a Record II mounted to my Billy Record II and you'll hear no complaints from me. By the way, does anyone have a prewar Billy Record in their collection with an Apotar? I'd be interested on how well it performs.

Best Regards - Andrew in Austin, TX
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I have an Agnar off of a Viking, and an Apotar on an Isolette II. The Agnar always looks

better. The Apotar is sharp around the frame, except in the center where it is always a tad

soft. Any ideas? I guess it could be film flatness, but that usually shows up on one side or

the other.

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Andrew Yue wrote "The previous Steinheil Apotar was soft coated and not as sharp, in my opinion."

 

Andrew, did you make a typo? I ask because I hadn't known that the Apotar was a Steinheil product. I've looked for Apotar in the Vade Mecum's Steinheil section. No Apotars there, unless the Adobe Reader 6's search function has problems.

 

Cheers,

 

Dan

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