Baader Expansion Ring 2″a/T-2i with 1mm optical path length (T-2 part #28) # 2958242
$59.95
Description
Baader Expansion Ring 2″a/T-2i with 1mm optical path length (T-2 part #28)
This expanding ring converts a T-2 male thread (M42x0.75) to an SCT male thread (2″x24tpi). 1mm optical path length. Has a female T/T2 thread on one side and a male SCT thread on the other.
Baader officially refers to this product as a Baader T-2 to 2″ Thread Expanding Ring. However, we find this title confusing and prefer to call it a T2 to SCT ring. While the SCT thread is technically a 2″ thread, most amateur astronomers usually mean the M48 thread (that is smaller than the SCT thread) found on most standard 2″ eyepieces and accessories when they refer to a 2″ thread.
Baader part number: T2-28a or 2958242
| MANUFACTURER | Baader Planetarium |
|---|---|
| SKU (#) | 2958242 |
| EAN CODE | 4047825007247 |
| NET WEIGHT (KG) | 0.01 |
| OPTICAL LENGTH (MM) | 1 |
| T-2 PART # | 28 |
| INNER DIAMETER / CLEAR APERTURE (MM) | 41 |
| OUTER DIAMETER | 52 |
| INNER CONNECTION (LENS SIDED) | Thread, T-2 (M42 x 0,75) |
| OUTER CONNECTION (EYEPIECE/-CAMERA-SIDED) | Thread, 2″ (50,8mm) |
| COMPATIBLE BRANDS | Astro T-2, Baader Planetarium |
| TYPE OF ADAPTER | Expanding piece |
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Additional information
| Weight | .5 kg |
|---|---|
| Dimensions | 15 × 13 × 10 cm |
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