William Optics Pleiades 111 Astrograph OTA | PixelSkiesAstro
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  • William Optics Pleiades 111 Astrograph OTA | PixelSkiesAstro
  • William Optics Pleiades 111 Astrograph OTA | PixelSkiesAstro
  • William Optics Pleiades 111 Astrograph OTA | PixelSkiesAstro
  • William Optics Pleiades 111 Astrograph OTA | PixelSkiesAstro

William Optics Pleiades 111 Astrograph OTA

4 490,00 €
TTC

William Optics Pleiades 111 Astrograph OTA — 111 mm seven-element astrograph The Pleiades 111 has a 528 mm focal length at f/4.8. William Optics specifies a 45 mm image circle.

Manufacturer model: William Optics Pleiades 111 Astrograph OTA · Specifications checked against manufacturer data on 2026-11-03

William Optics Pleiades 111 Astrograph OTA — 111 mm seven-element astrograph

The Pleiades 111 has a 528 mm focal length at f/4.8. William Optics specifies a 45 mm image circle.

Optics and imaging

Its seven-element astrograph design needs no separate field flattener.

Focusing and adapters

WIFD rack-and-pinion focusing provides 35 mm travel. Connections: Tilt adjuster; M92 to M78 rotator; M78 to M48 and M54 adapters. The camera adapter provides backfocus adjustment; set the imaging train according to the manual.

Dimensions and handling

Tube length is 645–785 mm; OTA weight is 7.95 kg. Manufacturer total weight is 10.31 kg.

William Optics manufacturer manual

Imaging optics and mounting

The seven-element optical system includes three Super ED elements and provides field correction within the telescope. Rear tilt adjustment and camera rotation help align and frame the imaging sensor. The manufacturer lists a Losmandy-style mounting plate.

Compatibility notes

Unlike a generic Petzval focus-range assumption, Pleiades spacing must follow the model-specific manual. Do not assume compatibility from sensor diagonal alone.

Additional specifications

Sensor tilt adjusterYes
Camera angle rotatorYes
84719

Fiche technique

Diamètre (mm)
111
Adaptateurs de caméra
Tilt adjuster; M92 to M78 rotator; M78 to M48 and M54 adapters
Format de caméra
Full frame and APS-C
Aplanisseur externe requis
No
Focale (mm)
528
Rapport F/D
4.8
Course du porte-oculaire (mm)
35
Type de porte-oculaire
WIFD rack-and-pinion
Cercle image (mm)
45
Éléments optiques
Seven elements including three Super ED elements
Cercle image selon le fabricant (mm)
45
Plaque de fixation
Losmandy-style
Formule optique
7-element astrograph
Poids du tube optique (kg)
7.95
Poids total (kg)
10.31
Longueur du tube (mm)
645–785
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