Categories

•  Accessories (19)

ADC (bits)

•  12 (20)
•  14 (3)
•  16 (8)

Aperture (mm)

•  30 (2)
•  32 (3)
•  50 (6)
•  51 (2)
•  56 (1)
•  60 (3)
•  61 (2)
•  62 (1)
•  68 (1)
•  70 (3)
•  71 (2)
•  72 (1)
•  76 (2)
•  80 (4)
•  81 (2)
•  82 (1)
•  90 (2)
•  91 (4)
•  100 (5)
•  108 (1)
•  110 (3)
•  111 (1)
•  120 (7)
•  130 (1)
•  131 (4)
•  132 (2)
•  150 (6)
•  156 (1)
•  160 (1)
•  180 (1)
•  181 (1)
•  200 (1)
•  250 (1)
•  300 (1)
•  318 (1)
•  350 (1)
•  356 (2)
•  432 (1)
•  500 (1)
•  508 (2)
•  610 (1)

Camera thread

•  M42 × 0.75 (28)
•  M48 × 0.75 male (6)
•  M48×0.75 (3)
•  M48×0.75 male (1)
•  M48x0.75 (4)
•  M54 × 0.75 (6)
•  M54 × 0.75 female (2)
•  M54 × 0.75 male (4)
•  M68 × 1 (1)

Colour mode

•  Colour (25)
•  Colour / one-shot colour (1)
•  Monochrome (36)

Filter thread

•  48 mm filter thread; pitch not specified (1)
•  M48 × 0.75 (2-inch) (10)
•  M48×0.75 inside final adapter (5)
•  M48×0.75, 2-inch (16)

Focal length (mm)

•  120 (4)
•  178 (1)
•  200 (3)
•  220 (1)
•  230 (1)
•  242 (2)
•  250 (2)
•  260 (1)
•  269 (1)
•  300 (1)
•  355 (1)
•  360 (2)
•  365 (1)
•  400 (3)
•  419 (1)
•  420 (1)
•  430 (1)
•  448 (3)
•  478 (1)
•  490 (3)
•  500 (1)
•  518 (1)
•  528 (1)
•  530 (2)
•  540 (1)
•  550 (2)
•  559 (1)
•  600 (3)
•  609 (2)
•  630 (1)
•  648 (1)
•  700 (1)
•  750 (1)
•  760 (1)
•  766 (3)
•  780 (3)
•  800 (1)
•  840 (2)
•  900 (3)
•  910 (2)
•  983 (3)
•  998 (1)
•  1000 (2)
•  1050 (3)
•  1200 (5)
•  1217 (1)
•  1500 (1)
•  1537 (1)
•  2541 (1)
•  2563 (1)
•  2939 (1)
•  3454 (1)
•  3910 (1)
•  3974 (1)
•  4000 (1)

Focal ratio

•  3.2 (1)
•  3.5 (1)
•  3.8 (1)
•  3.75 (3)
•  4 (3)
•  4.8 (4)
•  4.9 (6)
•  5.5 (1)
•  5.6 (1)
•  5.9 (2)
•  6.5 (3)
•  6.8 (2)
•  6.9 (3)
•  7 (5)
•  7.0 (3)
•  7.5 (3)
•  7.8 (1)
•  8.8 (1)
•  9.6 (1)
•  11 (2)
•  All focal ratios (1)
•  f/2.8 (2)
•  f/3 (1)
•  f/3.03 (1)
•  f/3.3 (2)
•  f/3.8 (1)
•  f/3.94 (1)
•  f/4 (5)
•  f/4.5 (1)
•  f/4.6 (1)
•  f/4.8 (5)
•  f/5 (9)
•  f/5.5 (2)
•  f/5.6 (3)
•  f/5.8 (2)
•  f/5.9 (3)
•  f/6 (6)
•  f/6 native; f/7 in H-alpha (2)
•  f/6.4 (1)
•  f/6.5 (4)
•  f/6.7 (1)
•  f/6.8 (8)
•  f/6.9 (2)
•  f/6.45 (2)
•  f/6.78 (1)
•  f/7 (32)
•  f/7.2 (2)
•  f/7.5 (6)
•  f/7.6 (1)
•  f/7.7 (1)
•  f/7.8 (1)
•  f/8 (8)
•  f/8 (4000/500) (1)
•  f/8.3 (1)
•  f/9 (2)
•  f/10 (7)
•  f/11 (1)
•  F5.5 (objective lens) F4.5 (plus the reducer) (1)
•  F5.6 (1)

Image circle (mm)

•  26.7 (1)
•  42 (4)
•  43 (4)
•  43.2 (1)
•  44 (25)
•  45 (6)
•  46 (1)
•  48 (2)
•  50 (2)
•  52 (2)
•  52 (table); 70 (features) (1)
•  55 (3)
•  60 (3)
•  70 (3)

Mount type

•  Alt-azimuth (6)
•  Centre-balanced equatorial (3)
•  Equatorial / alt-azimuth dual mode (4)
•  German equatorial (13)

Optical design

•  4-element Petzval (2)
•  5-element Petzval (6)
•  6-element Petzval (1)
•  7-element astrograph (3)
•  Air-spaced ED doublet apochromatic refractor (2)
•  Air-spaced fluorite doublet (3)
•  Air-spaced fluorite triplet (1)
•  Air-spaced triplet apochromatic refractor (4)
•  Apochromatic triplet (1)
•  Dedicated hydrogen-alpha solar telescope (2)
•  Doublet (5)
•  Doublet (including one ED glass) (1)
•  Doublet apochromat (2)
•  Doublet lens (1)
•  ED doublet apochromatic refractor (8)
•  ED doublet refractor (1)
•  ED refractor guidescope (2)
•  EdgeHD aplanatic SCT (1)
•  Five-element Advanced Petzval; two Super ED, one ED, one lanthanum and one X element (1)
•  Fluorite apochromat, 2 elements in 2 groups (1)
•  Four-element air-spaced apochromat; one ED element (10)
•  Four-element apochromatic (1)
•  Hyperbolic flat-field astrograph (2)
•  Hyperbolic flat-field astrograph (hyperbolic primary + flat secondary + field corrector) (1)
•  Oil-spaced fluorite triplet (4)
•  Parabolic imaging Newtonian (4)
•  Parabolic Newtonian reflector (4)
•  Quadruplet air-spaced APO (including two ED glass) (4)
•  Quadruplet air-spaced APO(including one ED glass) (5)
•  Quadruplet petzval APO（including one piece of SD glass） (1)
•  Quintuplet air-spaced APO (including two ED glass) (1)
•  Quintuplet air-spaced APO (including two ED glasses) (1)
•  Quintuplet dual ED air-spaced APO (2)
•  Quintuplet flat-field APO (including two ED elements) (1)
•  Quintuplet fully air-spaced Petzval APO (including one ED glass) (1)
•  Quintuplet petzval APO（including two pieces of SD glass） (1)
•  Quintuplet petzval APO（One piece of SD glass, one piece of ED glass） (1)
•  Ritchey-Chrétien (1)
•  Ritchey–Chrétien (1)
•  Seven-element EVO Petzval; three Super ED elements (1)
•  Sextuplet petzval APO (includes 2 pieces of SD glass ) (1)
•  sextuplet with two ED glasses air-spaced APO (1)
•  Terebizh catadioptric; VT99c (1)
•  Three-element APO with ED glass (1)
•  Three-element ED apochromatic refractor (6)
•  Triplet air-spaced APO (including one ED glass) (6)
•  Triplet apochromat (7)
•  Triplet apochromat with 2 ED elements (1)
•  Triplet apochromatic refractor (2)
•  Triplet dual ED air-spaced APO (objective lens) Sextuplet refractor for full-frame astro photography (with reducer) (1)
•  True RC with a hyperbolic primary and secondary mirror. (2)
•  Two-element air-spaced ED apochromatic refractor (1)

Payload (kg)

•  5 (2)
•  18 (1)
•  31.8 (1)
•  52 (1)

Pixel size (µm)

•  1.45 (1)
•  2 (4)
•  2.3 (2)
•  2.4 (4)
•  2.9 (7)
•  3.45 (1)
•  3.75 (1)
•  3.76 (7)
•  4 (1)
•  4.4 (1)
•  4.54 (1)
•  4.63 (2)
•  5.86 (2)
•  9 (1)
•  9.76 (1)

Sensor

•  AR0130CS (1)
•  Built-in temperature and humidity sensor; auto-dew control (1)
•  GSENSE9701 back-illuminated scientific CMOS (1)
•  OnSemi KAF-16200 Class 1/2, ABG 2800x (1)
•  OnSemi KAF-16200, ABG 2800x (1)
•  Panasonic 16mega pixel 4/3inch sensor (1)
•  RJ12; −45 to +125 °C and 10–99% RH; typical ±0.2 °C, ±2% RH (1)
•  SC2210_BW (1)
•  Sony ICX274AQ progressive CCD, ABG (1)
•  Sony ICX695 monochrome CCD (1)
•  Sony IMX174 (2)
•  Sony IMX174LLJ (1)
•  SONY IMX183 (2)
•  Sony IMX183CLK-J (2)
•  Sony IMX183CQJ-J (2)
•  Sony IMX249 (current manufacturer specification table) (1)
•  Sony IMX252 global shutter (1)
•  Sony IMX294 (2)
•  Sony IMX366 (1)
•  Sony IMX432LLJ-C (1)
•  SONY IMX455 (3)
•  Sony IMX455 (3)
•  Sony IMX455 BSI CMOS, consumer grade (1)
•  Sony IMX461 (1)
•  SONY IMX492 (1)
•  Sony IMX492 (2)
•  SONY IMX533 (2)
•  Sony IMX533CLK-D (1)
•  Sony IMX533CQK-C (1)
•  SONY IMX571 (2)
•  Sony IMX571 (1)
•  Sony IMX571 back-illuminated CMOS (1)
•  Sony IMX571 BSI CMOS, industrial grade (1)
•  Sony IMX585 (9)
•  Sony IMX662 (2)
•  Sony IMX664AAQR1-C (1)
•  Sony IMX676 (2)
•  Sony IMX678 (4)
•  Sony IMX715 (1)
•  Sony IMX992 InGaAs (1)

Sensor format

•  APS-C (1)
•  Four Thirds (1)
•  Square; Type 1/1.6 (2)
•  Typical 1 inch (1)

Shutter

•  Blade (2)
•  Butterfly mechanical shutter with uniform illumination (1)
•  Electric Rolling Shutter (6)
•  Electronic Global Shutter (2)
•  Electronic Rolling Shutter (13)
•  Electronic rolling shutter (1)
•  Global shutter (3)
•  Rolling (6)
•  Rolling (both sensors) (1)
•  Rolling + internal mechanical blade (2)
•  Rolling electronic (1)
•  Rolling shutter (23)
•  Rolling shutter, both sensors (5)