APQ Field Corrector for APQ 200/1600
Special three-lens aspherical design (1×CaF₂) for APQ 200/1600 Polychromat
1600 mm system focal length
f/8 focal ratio
Ø84.2 mm (3.0 °) flattened image field diameter without vignetting (theoretical)
≤ 5.0 µm (365 nm – 1014 nm) / Ø84.2 mm (3.0 °) polychromatic RMS spot radius vs. field
ultra-broadband AR coating
130 mm backfocus
Lens cell made of high-quality aluminum alloy
Dovetail ring S108a on the telescope side
Thread M98×1i on the camera side
1600 mm system focal length
f/8 focal ratio
Ø84.2 mm (3.0 °) flattened image field diameter without vignetting (theoretical)
≤ 5.0 µm (365 nm – 1014 nm) / Ø84.2 mm (3.0 °) polychromatic RMS spot radius vs. field
ultra-broadband AR coating
130 mm backfocus
Lens cell made of high-quality aluminum alloy
Dovetail ring S108a on the telescope side
Thread M98×1i on the camera side
Price
valid until
on request
incl. 19 % VAT
excl. shipping costs
excl. shipping costs
Price valid from
incl. 19 % VAT
excl. shipping costs
Net export price valid until
€
excl. shipping costs
excl. shipping costs
Net export price valid from
excl. shipping costs
Delivery time
on request
Inquiry
Price valid until 08/2022
€
incl. 19 % VAT
excl. shipping costs
incl. 19 % VAT
excl. shipping costs
Price valid from 09/2022
on request
incl. 19 % VAT
excl. shipping costs
excl. shipping costs
Net export price valid until 08/2022
€
excl. shipping costs
excl. shipping costs
Net export price valid from 09/2022
on request
incl. 19 % VAT
excl. shipping costs
excl. shipping costs
Delivery time
on request
Inquiry
- Description
- Specification
- Downloads
The APQ 200/1600 Fluorite Quadruplet Polychromat is a universal planetary refractor designed for the highest possible image quality; the polychromatic objective forms the optical base system.
Depending on the observing application, the basic system is combined with the Polychromatic Field Corrector or Polychromatic Focal Reducer Corrector for the APQ 200/1600 Fluorite Quadruplet Polychromat.
Diffraction-limited correction is maintained from 365 nm to 1014 nm, allowing the UBVRI spectral range of modern CCD and CMOS sensors to be fully utilized.
System focal length
1600 mm
Focal ratio
f/8
Image scale
2.149'/mm or 0.465 mm/'
Image field diameter
Ø84.2 mm (3.0 °)
Polychromatic RMS spot radius vs. field
≤ 5.0 µm (365 nm – 1014 nm) / Ø84.2 mm (3.0 °)
(theoretical)
(theoretical)
Maximum focal shift range
±0.002 % (365 nm – 1014 nm)
(theoretical)
(theoretical)
Anti-reflection coating
Ultra-ARB RAVG < 0.7 % (365 nm – 1014 nm)
(theoretical)
(theoretical)
Number of lenses
3 (1×CaF₂)
Backfocus
130 mm
Connection on the telescope side
Dovetail ring S108a
Connection on the camera side
Thread M98×1i
Product information
APQ Polychromats
APQ 200/1600 Polychromat