Extension Ring 6mm M54 - KEPLER

Reference: UA-EXTM48-4

Brand: ASToptics

M48 extension 4mm

M48 extension ring with a back focus of 4mm

Reference: KE404

Brand: Kepler

Fine adjustment rings 0.5mm to 1mm M48

Fine adjustment rings 0.5mm to 1mm M48

Reference: KE384

Brand: Kepler

Extension Ring M42 4mm - KEPLER

Extension Ring M42 4mm - KEPLER

Reference: TSVF203

Brand: TSOptics

M48 extension 3mm + diamètre coulant 2"

Bague d'extension M48 avec un tirage optique de 3mm au coulant 2"

Reference: UA-EXTM42-3

Brand: ASToptics

copy of M48 extension 4mm

M48 extension ring with a back focus of 4mm

Reference: TST2V26

Brand: TSOptics

T2 (M42) extension 26mm

Bague d'extension T2 (M42) avec un tirage optique de 26mm

Reference: TSV235

Brand: TSOptics

Coulant d'extension 2" - Tirage 35mm

Une bague parfaite pour retrouver le focus avec certains oculaires quand le PO n'a pas assez de recul.

Reference: KE396

Brand: Kepler

Extension Ring 4mm M54 - KEPLER

M54 Adjustment Ring Adding 4mm of Backfocus.

Reference: UA-EXTM42-15

Brand: Univers Astro

Extension ring 15mm M42

T2 (M42) extension ring with 15mm back focus

Reference: AS-BF-ADM54M54

Brand: ASKAR - Sharpstar

M54/M48 Backfocus Adjuster - ASKAR

In daily astronomical shooting, the backfocus will have an influence. Astronomical photographers are often frustrated by the change of backfocus due to various reasons such as refraction of filters or when using some products with sensitive backfocus. To solve this problem, ASKAR launched the backfocus adjuster, (providing the adjustment range from...

Reference: KE399

Brand: Kepler

Extension Ring 7mm M54 - KEPLER

Extension Ring 7mm M54 - KEPLER

Reference: UA-EXTM42-10

Brand: Univers Astro

Extension ring 10mm M42

Extension ring T2 (M42) with a back focus of 10mm

Reference: KE400

Brand: Kepler

copy of

Reference: UA-EXTM42-20

Brand: Univers Astro

extension gue 20mm M42

Extension ring T2 (M42) with a 20mm back focus

Reference: UA-EXTM48-7

Brand: Univers Astro

M48 extension 7mm

M48 extension ring with 7mm back focus

Reference: UA-EXTM48-12

Brand: Univers Astro

Extension ring 12mm M48

M48 extension ring with a 12mm back focus