Difference between revisions of "Topcon RII"
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| − | The '''Topcon R II''' was a transitional model for [[Tōkyō Kōgaku]]. While it retains the [[Exakta]] lens mount, it drops reliance on lenses with external [[PAD]] aperture | + | The '''Topcon R II''' was a transitional model for [[Tōkyō Kōgaku]]. While it retains the [[Exakta]] lens mount, it drops reliance on lenses with an external [[PAD]] aperture linkage in favor of [[Stop down | stopping down]] to shooting aperture via an internally coupled, instant-reopen diaphragm. |
| − | The Topcon RII was offered to the US market by [[Charles Beseler]] as the '''Beseler C Topcon''' beginning in 1960<ref>The Beseler version was [https://www.flickr.com/photos/camerawiki/52519218979/in/pool-camerawiki/ shown at the March 1960 MPDFA expo] and [https://books.google.com/books?id=VyYDAAAAMBAJ&lpg=PA49&ots=GDW8dKMXuv&dq=%22Beseler%20C%20Topcon%22&pg=PA49#v=onepage&q=%22Beseler%20C%20Topcon%22&f=false advertised in late 1960]</ref>. Based on surviving examples it does not seem to be a common model. After a revised [[Topcon R III]] the pointed pentaprism housing would give way to the iconic "shed" design of the [[Topcon RE Super]] which became the brand's design trademark. | + | However this is still a meterless model, and its bi-level shutter speed dial split between fast and slow speeds handicapped any possibility to create a clip-on meter design (as used by other brands and eventually [[Topcon R III | Topcon themselves]]). |
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| + | The Topcon RII was offered to the US market by [[Charles Beseler]] as the '''Beseler C Topcon''' beginning in 1960<ref>The Beseler version was [https://www.flickr.com/photos/camerawiki/52519218979/in/pool-camerawiki/ shown at the March 1960 MPDFA expo] and [https://books.google.com/books?id=VyYDAAAAMBAJ&lpg=PA49&ots=GDW8dKMXuv&dq=%22Beseler%20C%20Topcon%22&pg=PA49#v=onepage&q=%22Beseler%20C%20Topcon%22&f=false advertised in late 1960]</ref>. On some examples "automatic" now appears engraved on the [[pentaprism]]. Based on surviving examples it does not seem to be a common model. After a revised [[Topcon R III]] the pointed pentaprism housing would give way to the iconic "shed" design of the [[Topcon RE Super]] which became the brand's design trademark. | ||
==Notes== | ==Notes== | ||
Revision as of 05:09, 4 December 2022
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| 1961 Beseler advertising in Popular Photography magazine |
The Topcon R II was a transitional model for Tōkyō Kōgaku. While it retains the Exakta lens mount, it drops reliance on lenses with an external PAD aperture linkage in favor of stopping down to shooting aperture via an internally coupled, instant-reopen diaphragm.
However this is still a meterless model, and its bi-level shutter speed dial split between fast and slow speeds handicapped any possibility to create a clip-on meter design (as used by other brands and eventually Topcon themselves).
The Topcon RII was offered to the US market by Charles Beseler as the Beseler C Topcon beginning in 1960[1]. On some examples "automatic" now appears engraved on the pentaprism. Based on surviving examples it does not seem to be a common model. After a revised Topcon R III the pointed pentaprism housing would give way to the iconic "shed" design of the Topcon RE Super which became the brand's design trademark.
Notes
- ↑ The Beseler version was shown at the March 1960 MPDFA expo and advertised in late 1960
