140 mm (5.52”) F/6.5

140 mm (5.52”) F/6.5

OBJECTIVE LENSES

EVERY SINGLE ISTAR LENS IS INDEPENDENTLY TESTED TO ASSURE CONSISTENTLY HIGH QUALITY. WE USE TWO TEST METHODS, RONCHI, and INTERFEROMETER TEST (TESTED TWICE BY 90-DEGREE ROTATION TO OBTAIN THE MOST ACCURATE DATA).

OUR APOCHROMATIC TRIPLETS ARE DESIGNED WITH   FLUORO-CROWN  (FLUORITEGLASS) & LANTHANUM GLASS MANUFACTURED IN JAPAN BY HOYA.

SUPERIOR DESIGN and PRODUCTION  QUALITY USING THE BEST HOYA FLUORIDE and LANTHANUM OPTICAL GLASS

$2,349.00

140 mm (5.52”) F/6.5

LNAP.140.065

IN PRODUCTION

Item Description -

Lens Diameter

Clear Aperture

No of Elements

Optical glass - -

Effective Focal Length

Back Focal Length -

F-Ratio

Illuminated ring diameter using WO Flattener 68III

Anti-Reflective Coating

Fully Multicoated

Net Weight

Cell O.D.

HandFigured

Minimum Strehl

Super Apochromatic (Super APO) Fluorite Triplet

146 mm

140 mm

3

Fluoro-Crown Glass (FPL-53 category)

910 mm

883 mm (measured from the center of the last lens surface)

F/6.5

44 mm

 

SiO2 and/or MgF2

YES

2.8 Kg

162 mm

YES

0.90

$5,475.00

170 mm (6.69”) F/7

LNAP.170.070

Item Description

Lens Diameter

Clear Aperture

No of Elements

Optical glass --

Focal Length

F-Ratio

Anti-Reflective Coating

Fully Multicoated

Minimum Surface Accuracy

HandFigured

Minimum Strehl Ratio

Recommended reducer-flattener

Apochromatic (APO) Triplet

178 mm

170 mm

3

Fluoro-Crown & Lanthanum (Hoya, CDGM)

1190 mm

F/7

SiO2 and/or MgF2

YES

PV/5

coming soon

0.90

Starizona Apex ED-L (APS-C)

Each international customer is responsible for paying local taxes and fees! We ship from Tucson, Arizona, USA so only US customers (excluding Arizona residents) will receive their items tax free. Contact your local customs authorities before ordering.

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