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).
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.
$1,349.00
150 mm (6”) F/8 R35-S
LNAN.150.080
ONLY 1 LENS AVAILABLE
Item Description
--
Lens Diameter
Clear Aperture
No of Elements
Focal Length
- -F-Ratio
Type of Coating
- -Fully Multicoated
Strehl Ratio
Weight (incl. cell)
Cell O.D.
HandFigured
Minimum Surface Quality
Achromatic R35 (Anastigmatic) Hand Figured Doublet in Push-Pull style cell
154 mm
150 mm
2
1166 mm (from center of last surface)
F/8
SiO2 Broadband Multilayer Film (Yellow-Green)
YES
0.93
3.03 Kg
192 mm
YES
PV/4
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$7,650.00
250 mm (9.8") F/11 R30
LNAN.250.110
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
Achromatic R35 (Anastigmatic) Hand Figured Doublet in Push-Pull style cell
254 mm
250 mm
2
2712 mm
F/11
SiO2 Broadband Multilayer Film (Yellow)
YES
13.86 Kg
292 mm
YES
PV/4
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Achromatic
H - Alpha "Solar"
R35 & R50 Anastigmatic
Apochromatic (APO)
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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