| The TeleVue #13T025 0.25” spacer ring is one of a number of adapters that are needed to provide the necessary distance between a 35mm camera and a TeleVue imaging system refractor. It mates with the other optional (but necessary) imaging system accessories listed below. The #13T025 is used for prime focus 35mm photography with following TeleVue IS (Imaging System) scopes: the TV-102iis, the NP-101is, and the NP-127is.
In addition to this #13T025, 35mm imaging will require the following accessories:
the #1360 Large Field Corrector,
a #13T050 0.5” spacer,
a #13T100 1.0” spacer, and
either a #13CAW Canon wide T-adapter and an optional Canon T-ring, or a #13TRA standard T-ring adapter and optional T-ring, depending on your brand of 35mm camera.
You will also need the imaging system adapter supplied with the TeleVue telescope.
The system chart feature image below shows the required order in which the #13T025 and the other optional accessories should be assembled for proper operation. The spacer is made of black anodized aluminum with internal anti-reflection threads for maximum contrast. A ribbed ring around the top provides a firm grip for assembling and disassembling the spacer from the imaging accessory stack. |
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