Feature

●Focal reducer and field flattener is one of the essential accessories for astrophotography; SV193 2 inch 0.8x focal reducer and field flattener for refractor telescopes
●With advanced refractor; SV193 0.8x focal reducer can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo
●The front end is a standard 2-inch socket to connect to the main lens; and the back end is M48x0.75 threaded to connect to the camera bayonet; support Full Frame Camera
●Accepts 2 inch filters; includes standard 2 inch filter thread to add light pollution filter you need
●The 0.8 times defocusing system shortens the exposure; it can meet the needs of astrophotographers who need sufficient exposure in a short time


Description

SV193 2-Inch 0.8x Photo Reducer/Flattener for SV503 80f/7 ED Refractors

Field Flattener Field Flattener

SV193 2" 0.8x focal reducer and field flattener for refractor telescopes, which can meet the illumination needs of full-frame shooting. With SV503 80ED refractor telescope, it can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo.

Premium

  1. The SV193 0.8X focal reducer/field flattener is designed for fixed field astrophotography with the SV503 80ED refractor. While it will also thread through and work with other makes and models of f/7 refractors that use 2" focusers, its performance with other ranges cannot be well.
  2. The SV193 0.8X focal reducer/field flattener converts the 560mm focal length f/7 SV503 80ED refractor into a 448mm f/5.6 system for faster and wider astro and terrestrial photography. After the focal is reduced, the starry sky can be captured wider, the star points are finer, and the signal-to-noise ratio is better under the same exposure.
  3. In addition to shortening the focal length of the telescope for faster photography, the SV193 0.8X focal reducer/field flattener the normal field curvature inherent in all refractors.
  4. The 0.8 times defocusing system shortens the exposure. It can meet the needs of astrophotographers who need sufficient exposure in a short time.
  5. With SV503 80ED refractor, it can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo.
  6. The default back-intercept is 55mm. Using the 360° field rotator at the end of the focusing tube (not included), you can meet your composition requirements without turning the main lens, and it can also meet the use of filter wheel/OAG/astronomical camera at the same time.

SV193 0.8X focal reducer/field flattener

3-Elements 2 Groups Lens Structure and FMC Lens Coating

SV193 0.8X focal reducer/field flattener All refractors have inherent normal field curvature. This provides images that are sharply focused to the corners of DSLR and CCD imaging chips. In your image, the stars appear sharp and point-like across the field of view. You dont have to worry about photos that have a sharp center and blurry edges.

SV193 Focal Reducer SV193 Focal Reducer
SV193 Focal Reducer SV193 Focal Reducer

2-inch Barrel Size / M48*0.75 Threads Standard

The front end is a standard 2-inch socket to connect to the main lens, and the back end is M48x0.75 threaded to connect to the camera bayonet (Support Full Frame Camera).

SV503 80mm F7 ED TelescopeSV503 80mm F7 ED Telescope

Solid metal construction

Aluminum alloy material, strong sturdy and durable. Hard anodized finish aluminum body to help reduce weight.

Specifications

Model: SV193
Backfocus: 55mm
Barrel Size: 2-inch
Threads Standard: M48*0.75
Lens Structure: 3-Elements/2Groups
Lens Coating: FMC
Blackened Lens Edges: Yes
Net Weight: 164g / 5.78oz / 0.36lb

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