228mm (9") F/9

250mm (10") F/10

150mm (6") F/10

OUR ACHROMATIC DOUBLETS ARE DESIGNED WITH STANDARD CROWN AND FLINT OPTICAL GLASS AND PRODUCED TO STRICT QUALITY STANDARDS.

WE HAVE INCORPORATED SPECIAL HEAVY (SHORT) FLINT GLASS IN ALL R30, R35 AND R50 DOUBLET DESIGNS IN ORDER TO REDUCE CHROMATIC ABERRATION AND INCREASE RESOLUTION.

(LNHA.150.100)

150 mm (6") F/10 H-Alpha

$1,299.00

Item Description

Lens Diameter

Clear Aperture

No of Elements

Focal Length

F-Ratio

Type of Coating

Fully Multicoated

Weight (incl. cell)

Cell O.D.

HandFigured

Minimum Surface Quality

H-Alpha Optimized, Hand Figured Doublet in Push-Pull Style Cell

154 mm

150 mm

2

1480 mm (from center of last surface)

F/10

SiO2 Broadband Multilayer Film (Yellow)

YES

---

192 mm

YES

PV/4

(LNHA.228.090)

228 mm (9") F/9 H-Alpha

Item Description

Lens Diameter

Clear Aperture

No of Elements

Focal Length

F-Ratio

Type of Coating

Fully Multicoated

Weight (incl. cell)

Cell O.D.

HandFigured

Minimum Surface Quality

H-Alpha Optimized, Hand Figured Doublet in Push-Pull Style Cell

234 mm

228 mm

2

2025 mm

F/9

SiO2 Broadband Multilayer Film (Yellow)

YES

---

---

YES

PV/4

$4,965.00

(LNHA.250.100)

250 mm (10") F/10 H-Alpha

$10,152.00

Item Description

Lens Diameter

Clear Aperture

No of Elements

Focal Length

F-Ratio

Type of Coating

Fully Multicoated

Weight (incl. cell)

Cell O.D.

HandFigured

Minimum Surface Quality

H-Alpha Optimized, Hand Figured Doublet in Push-Pull Style Cell

256 mm

250 mm

2

2500 mm

F/10

SiO2 Broadband Multilayer Film (Yellow)

YES

12.5 Kg

292 mm

YES

PV/4

OBJECTIVE LENSES

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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