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

Explore Scientific 1.25" 82° - 8.8mm
Explore Scientific 1.25" 82° - 8.8mm
CHF 199
Roue à filtre Player One Phoenix 8x1.25"
Player One Phoenix 8x1.25" filter wheel
CHF 329
Explore Scientific 2" 52° - 10 mm
Explore Scientific 2" 52° - 10 mm
CHF 89
Explore Scientific 2" 100° - 14mm
Explore Scientific 2" 100° - 14mm
CHF 439
Lentille de Barlow Explore Scientific 3x en 1.25"
Barlow Explore Scientific 3x in 1.25" lens
CHF 139
Résistance chauffante pour Ø 80mm
Heating element for Ø 80mm
CHF 66
Diviseur optique FHD-OAG MAX prisme grand format
FHD-OAG MAX large-format prism optical splitter
CHF 229
Résistance chauffante pour Ø 280mm
Heating element for Ø 280mm
CHF 109
Colliers Primaluce 90mm PLUS
Primaluce 90mm PLUS clamps
CHF 229
Oculaire Celestron Luminos 82° 19mm
Celestron Luminos 82° 19mm eyepiece
CHF 279
Aplanisseur de champ full frame pour 61EDPHIII
Full frame field flattener for 61EDPHIII
CHF 209
FlatMaster 150L
FlatMaster 150L
CHF 159
Écran à flat GIOTTO  + moteur ALTO 120
GIOTTO flat screen + ALTO 120 motor
CHF 769
Wanderer ETA M54 — Correcteur de tilt électronique ultra-fin
Wanderer ETA M54 - Ultra-slim electronic tilt corrector
CHF 769
Explore Scientific 1.25" 62° - 5.5 mm
Explore Scientific 1.25" 62° - 5.5 mm
CHF 109
Apollo-M MAX - CMOS 1.7MP/126FPS mono
Apollo-M MAX - CMOS 1.7MP/126FPS mono
CHF 549

Our new products

Sky-Watcher SKYTEE-2 (sans trépied)
Sky-Watcher SKYTEE-2 (without tripod)
CHF 349
Sky-Watcher HAC125DX + Monture EQ-AL55i PRO
Sky-Watcher HAC125DX + EQ-AL55i PRO mount
CHF 1'549
Lunette astronomique Capricorn-70 EQ-1
Capricorn-70 EQ-1 telescope
CHF 159
Sky-Watcher Mercury-705 (AZ-3)
Sky-Watcher Mercury-705 (AZ-3)
CHF 159
Sky-Watcher MERCURY-607
Sky-Watcher MERCURY-607
CHF 129
Sky-Watcher SKYMAX-180 PRO EQ6-R PRO
Sky-Watcher SKYMAX-180 PRO EQ6-R PRO
CHF 2'948
Sky-Watcher SKYMAX-180 PRO HEQ-5 R PRO
Sky-Watcher SKYMAX-180 PRO HEQ-5 R PRO
CHF 2'448
Sky-Watcher SKYMAX-180 PRO EQ5 PRO
Sky-Watcher SKYMAX-180 PRO EQ5 PRO
CHF 2'098
Sky-Watcher SKYMAX-150 Fusion-120i
Sky-Watcher SKYMAX-150 Fusion-120i
CHF 1'599
Sky-Watcher SKYMAX-150 HEQ-5 R PRO
Sky-Watcher SKYMAX-150 HEQ-5 R PRO
CHF 1'998
[category_menu_mobile]