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 STOCK
1 pc
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
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$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)
OUT OF STOCK
ORDER NOW
Achromatic
H - Alpha "Solar"
R30 & R35 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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