TS-Optics Photoline 3-inch 0.79x 4-Element Reducer/Flattener

TS-Optics Photoline 3-inch 0.79x 4-Element Reducer/Flattener – Product description

TS-Optics Photoline 3-inch 0.79x 4-Element Reducer/Flattener belongs to the Imaging Correctors / Reducer / Barlow range. Four-element 0.79x reducer/flattener for APO refractors with 3-inch or M68 connection.

Key product details

• Astrophotographers using premium APO refractors
• APS-C and full-frame cameras
• Wide-field deep-sky imaging
• 0.79x reduction factor
• Four optical elements
• Fully multi-coated optics

Product overview

The Photoline 0.79x reducer shortens focal length, increases speed and flattens the field of suitable refractors. It is designed for large sensors up to full frame.

Suitable applications

• Astrophotographers using premium APO refractors
• APS-C and full-frame cameras
• Wide-field deep-sky imaging

Included equipment

• 0.79x reduction factor
• Four optical elements
• Fully multi-coated optics
• M68x1 telescope-side connection
• 3-inch push-fit option
• M48x0.75 camera side
• Approx. 45 mm corrected and illuminated field
• Approx. 55-70 mm sensor spacing depending on refractor focal length

Spacing depends on focal length

With this reducer, optimum sensor spacing is not always 55 mm. According to the product information, shorter refractor focal lengths may require up to around 70 mm.

Practical note

Calculate the required spacing before ordering extension rings. Accurate tuning is particularly worthwhile with full-frame sensors.

Selection note

Related products: Telescope accessories at Optikshop24.