Mamiya Press Focusing Back Type 4, Circa Early 1970's

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Mamiya Press Focusing Back Type 4, Circa Early 1970's
Mamiya Press Focusing Back Type 4, Circa Early 1970's

Mamiya Press Focusing Back Type 4, Circa Early 1970's (TPHC Item No. 19982000_0060_05)

The Type 4 Mamiya focusing Screen Holder accessory would have been launched with the introduction of the Mamiya Super 23 (black version) in Oct 1969. The Type 4 Focusing Screen Holder is essentially the same as the Type 3 except that the lid now has a black wrinkle paint finish to match the color scheme of the Mamiya Super 23 (black version) and the Mamiya Universal Press (black version).

There is however one minor technical difference. The etched lines defining the 6x6 format field of view on the ground glass screen has been removed in the Type 4 – which is interesting.

By the late 1960s – early 1970s, the roll film backs would have been the primary film back most users of these cameras. Mamiya had introduced the all black Model 2 dedicated 6x9 and 6x7 roll film holders, as well as updating the Model K multi-format back that used masks to allow for 6x9, 6x6 and 6x4.5 format image making. The Type 4 Focusing Screen Holder at this time would likely have been used by photographers at that time for specialty/ technical applications, such as using the Super 23 camera’s back movement capabilities or the use of Mamiya Press Extension Tubes. Mamiya appears to have thought that these applications would most likely have been made in 6x9 and 6x7 formats rather than 6x6 or 6x4.5 formats, so it was unnecessary to keep the 6x6 frame on this accessory.

In Aug 1971, Mamiya launched the Universal Press (black version) camera. It is believed that at this time the Type 3 Focusing Screen Holder would have been discontinued. As such, there was a short period of time (Oct 1969 and Aug 1971) where the Type 3 and Type 4 Focusing Screen Holders where likely both available in the market.

The Type 4 Focusing Screen Holder was available up until the discontinuation the Press camera system in 1991, or for nearly 20 years.

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Taken on: October 6, 2024
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