OBJECTIVE LENSES

VIEW

CART

204 mm (8.0”) F/7

140 mm (5.52”) F/6.5

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.

(LNAP.140.065)

140 mm (5.52”) F/6.5

$1,777.77

Item Description

Lens Diameter

Clear Aperture

No of Elements

Optical glass

Focal Length

F-Ratio

Anti-Reflective Coating

Fully Multicoated

Strehl Ratio

Net Weight

Cell O.D.

HandFigured

Minimum Surface Accuracy

Apochromatic (APO) Fluorite Triplet

146 mm

140 mm

3

Fluoro-Crown Glass (FPL-53 category)

910 mm

F/6.5

SiO2 and/or MgF2

YES

0.95

2.8 Kg

162 mm

YES

PV/5

IN STOCK

(LNAP.204.070)

204 mm (8.0”) F/7

$11,111.11

Item Description

Lens Diameter

Clear Aperture

No of Elements

Optical glass

Focal Length

F-Ratio

Anti-Reflective Coating

Fully Multicoated

Strehl Ratio

Net Weight

Cell O.D.

HandFigured

Minimum Surface Accuracy

Apochromatic (APO) Fluorite Triplet

210 mm

204 mm

3

Fluoro-Crown & Lanthanum

1428 mm

F/7

ZrO2 and/or MgF2

YES

0.97

coming soon

coming soon

YES

PV/5