SVBONY SV193 0.8X Focal Reducer Field Flattener 2 Inch Telescope Accessory for SV503 80mm F7 ED Telescope Aluminum

The SVBONY SV193 0.8X Focal Reducer and Field Flattener is an essential accessory for astrophotography, designed for refractor telescopes like the SV503 80mm F7 ED. It helps achieve clear and sharp celestial photos by reducing focal length and flattening the field, minimizing star point distortion at the edges of images.

Crafted from durable aluminum alloy with a hard anodized finish, this accessory is built for strength and longevity while keeping weight down. It features a 3-element, 2-group lens structure with fully multi-coated (FMC) optics for high transmittance and superior views.

Key Features:
* Designed for astrophotography to reduce focal length by 0.8X and flatten the field.
* Minimizes star point distortion at the edge of photos, ideal for wide-field imaging.
* Front end features a standard 2-inch socket for connecting to the main lens.
* Back end has M48x0.75 threads for connecting to camera bayonets, supporting Full Frame Cameras.
* Accepts 2-inch filters with a standard filter thread for light pollution filters.
* 0.8X defocusing system shortens exposure times, beneficial for astrophotographers.
* Default back-intercept of 55mm.
* Can be used with a 3600 field rotator (sold separately) for flexible composition.
* Solid metal aluminum alloy construction with a hard anodized finish.
* Lens Structure: 3-Elements/2Groups with FMC coating and blackened lens edges.
* Net Weight: 164g.