Askar SQA106 f/4,8 106/509 Askar telescopes opinie

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SQA106 f/4.8 106/509 is a professional astrograph dedicated to work with full-frame and medium-format cameras and cameras.

The optical system of this astrograph consists of five lenses, two of which are made of super low dispersion (SD) glass. This design not only provides excellent resolution and image detail, but also excellent color reproduction thanks to effective correction of chromatic aberrations. The applied optical design allows work in a wide range of working distance, which, combined with a double system of coarse and fine focusing, significantly facilitates the operation of the lens.

The very good optical properties are accompanied by the quality of workmanship. Both the body and the lens hood are made of metal. Thanks to this, the construction of this lens is not only solid, but also allows for secure and stable attachment to a tripod or mount using the included foot.

Key Features of the Askar SQA106 f/4.8 106/509 Astrograph

• apochromatic astrophotography lens with excellent field curvature correction
• two low-dispersion glass lenses that eliminate chromatic aberrations
• 2.8" diameter rack & pinion lift
• mounting of cameras and cameras via M48 / M54 / M68 adapters
• compatible with full-frame and medium-format matrices
• illumination of over 75% at the edge of the medium format matrix
• solid metal construction

Technical parameters

• optical design: apochromatic quintuplet in the Petzval system
• number of low dispersion glass lenses: 2 SD lenses
• focal length: 509 mm
• Front lens diameter: 106 mm
• aperture: f/4.8
• lift: rack & pinion 2.8"
• focusing: manual with coarse and fine adjustment
• focus adjustment range: 30 mm
• back focus (recommended): 55 mm
• working distance range: 48 - 78 mm
• matrix format: full frame (44 mm), medium format (55 mm)
• mounting bracket: Dovetail 300 mm
• camera/camcorder mount: M48/M54/M68 adapters
• rotator: 360°
• body material: metal
• body finish: silver-gray
• length with extended sun visor: 516 mm
• length with folded sun visor: 586 mm
• weight with accessories: 8.12 kg

Set components

• Askar SQA106 f/4.8 106/509 astrograph
• cover
• documentation

Guarantee

24 months