More products from the brand :ASKAR

Backfocus adjustment ring with integrated +/2 mm adjustment

CHF 139

Reference BAG-0001

Free delivery against signature
Easy, free returns

Introducing the ASKAR ±2 mm backfocus adjuster

ASKAR has developed a backfocus adjuster specially designed to solve backfocus distance problems. This adjuster makes it easy to correct backfocus variations without having to replace or modify expensive components. Thanks to its ingenious design, it enables fine, precise adjustment, with an adjustment range of ±2 mm, which is ideal for compensating for small variations and ensuring perfect focus.

Technical description and features

  • Two versions are available: ASKAR offers two specifications for this backfocus adjuster, one with a camera-side adapter in M54 and the other in M48. This allows users to choose the version best suited to their equipment.
  • Dimensions : The adjuster is 18 mm thick (±2 mm adjustment), offering sufficient stability and robustness for outdoor use. The outside diameter is 74 mm, and it is available with female threads for the telescope interface (M54 or M48) and male threads for the camera interface.
  • CNC precision and printed scale : Manufactured with CNC precision, each adjuster enables backfocus correction to an accuracy of 0.05 mm. What's more, the scale printed on the surface of the adjuster facilitates adjustment and enables the chosen position to be retained. This is particularly useful for users who frequently change equipment.
  • Easy to use : The ASKAR backfocus adjuster is easily attached between telescope and camera. Simply turn the adjuster to adjust the backfocus distance, allowing rapid adaptation to variations. The two screw holes ensure that the adjuster stays in place once the ideal position has been found.

In a nutshell

The ASKAR backfocus adjuster is a practical and effective solution for astrophotographers looking to optimize their focus without complications. Its sturdy design, easy-to-read scale and precise adjustment capability make it an ideal choice for amateurs and professional astronomers alike. This accessory guarantees that your images will always be perfectly sharp, even with a variety of equipment configurations.

Products in the same category

Résistance chauffante pour Ø 250 mm
Heating element for Ø 250 mm
CHF 109
Lentille de Barlow Celestron Luminos 2.5x
Celestron Luminos 2.5x Barlow lens
CHF 189
Réducteur 0.7x FRA600
Gearbox 0.7x FRA600
CHF 399
Adaptateur M54/M48 pour Sony E (backfocus de 37mm)
M54/M48 adapter for Sony E (37mm backfocus)
CHF 59
Oculaire Celestron Luminos 82° 7mm
Celestron Luminos 82° 7mm eyepiece
CHF 179
Correcteur de Champ-Sky-Watcher Esprit 80ED & 80EDX
Esprit 80ED & 80EDX Sky-Watcher Field Corrector
CHF 199
FocusCube C6, C8, C9.25 Edge et RASA 8
FocusCube C6, C8, C9.25 Edge and RASA 8
CHF 239
Adaptateur M54/M48 pour Nikon Z (backfocus de 39mm)
M54/M48 adapter for Nikon Z (39mm backfocus)
CHF 59
Réducteur Full-Frame 61EDPHIII f/4.4
Reducer Full-Frame 61EDPHIII f/4.4
CHF 199
Correcteur / Réducteur 0.9x pour Sky-Watcher Evolux-62ED
0.9x corrector / reducer for Sky-Watcher Evolux-62ED
CHF 299
Sky-Watcher Star Adventurer 2i WiFi (Pro-Pack)
Sky-Watcher Star Adventurer 2i WiFi (Pro-Pack)
CHF 449
Adaptateur pour passer M42 vers M48 pour FMA 180
M42 to M48 adapter for FMA 180
CHF 19
Lentille de Barlow Explore Scientific 2x en 2"
Barlow Explore Scientific 2x in 2" lens
CHF 199
Résistance chauffante pour Ø 280mm
Heating element for Ø 280mm
CHF 109
Réducteur / Correcteur 0.85x Sky-Watcher Evostar-100ED DS-PRO
Reducer / Corrector 0.85x Sky-Watcher Evostar-100ED DS-PRO
CHF 298
Réducteur 0.75x 71F
Reducer 0.75x 71F
CHF 199

Our new products

Monture iOptron CEM120 EC2
iOptron CEM120 EC2 mount
CHF 8'099
Monture iOptron CEM120 EC1
iOptron CEM120 EC1 mount
CHF 6'599
Wanderer Astro - WandererRotator Lite V2 (M68)
Wanderer Astro - WandererRotator Lite V2 (M68)
CHF 509
Monture iOptron HAZ31 : monture GoTo alt-azimutale
iOptron HAZ31 mount: GoTo alt-azimuth mount
CHF 1'959
Baader Skyglow Neodymium 1.25
Baader Skyglow Neodymium 1.25
CHF 99
Oculaire Sky-Watcher Nirvana 16mm 1.25”
Sky-Watcher Nirvana 16mm 1.25” Lens”
CHF 110
Oculaire Sky-Watcher Nirvana 13mm 1.25”
Sky-Watcher Nirvana 13mm 1.25” Lens”
CHF 110
Oculaire Sky-Watcher Nirvana 10mm 1.25”
Sky-Watcher Nirvana 10mm 1.25” Lens”
CHF 98
OculaireSky-Watcher Nirvana 7mm 1.25”
LensSky-Watcher Nirvana 7mm 1.25” lens”
CHF 98
Oculaire Sky-Watcher Nivrana 4mm 1.25”
Sky-Watcher Nivrana 4mm 1.25” Lens”
CHF 98
[category_menu_mobile]