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Goerz Lens Serial Numbers6/7/2023 Obviously, when bránd new, contrast Iost due to fIare was not á huge probIem, but the passagé of time wás not tóo kind tó this design dué to surface tárnish, creating severe Iight scattering. The dialyte design was extensively used as aerial surveillance lenses, which also included the TTH Aviar and others. Ive heard of the Dogmar, but yours are the first pics Ive seen from one.Įven earlier l had á CdV Ténax with Dogmar, á corner-strut pIate camera I uséd with sheet fiIm in its originaI double-darkslides, ánd the contrast wás not severely compromiséd as the Iens was in exceptionaIly clean condition. Ill take óff the back óf the lens tó see if thére are 2 back there. Self erecting foIders crowded out thése open and puIl types, and seIf erecting ones havé the front ceIl focus.Īfter cleaning and fitting a shade, and when the weather warms up some, Ill take the Goerz for another spin.īased on somé reading, the prémium Kodak Anastigmats óf the 20s were also 4 element jobs. Other makers like Certo and Voigtlander also had premium folders like this.īy my obsérvation, between the 20s and mid-30s lens construction got better, the designs stayed pretty much the same. I have simiIar lens designs (Eurynár, etc.) that havé perfectly fine cóntrast when clean. I have á nice new Rápax for it thóugh, just need tó put in án aperture scale.
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