The TeleVue #13T050 0.50” spacer ring is one of a number of adapters that are needed to provide the necessary distance between a 35mm or digital SLR camera and a TeleVue imaging system refractor (using a TeleVue 0.8x reducer lens with the digital camera). It mates with the other optional (but necessary) imaging system accessories listed below. The #13T050 is used for prime focus photography with following TeleVue IS (Imaging System) scopes: the TV-102iis, the NP-101is, and the NP-127is.
This adapter is recommended for use with digital SLR cameras having an APS size (30.2mm x 16.7mm) imaging chip or smaller.
In addition to this #13T050, imaging will require one of two combinations of some of the following accessories (which combination is used depends on the type of camera – see the system chart feature image below):
the #1360 Large Field Corrector,
a #13T025 0.25” spacer,
a #13T100 1.0” spacer,
a #13CAW Canon wide T-adapter, and Canon T-ring,
a #13TRA standard T-ring adapter, and an appropriate T-ring,
a #1362 0.8x reducer lens,
plus the imaging system adapter supplied with the TeleVue telescope.
The system chart feature image below shows the required order in which the #13T050 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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