Взято
https://www.baader-planetarium.com/en/blog/the-baader-astro-t-2-system/The Baader Astro T-2 System™ Overview
T-2
Component # LABEL (i)=internal THREAD, (a)=external THREAD Opt. length (mm) Connection: objective connection: eyepiece auxiliary thread or diameter
# 1A Maxbright Mirror Diagonal T-2, incl. Adapter #3 43 T-2(i) T-2(a) M34(i) out #3
# 1B
T-2 Stardiagonal Prism 90°, 36mm (Zeiss Prism), with male/female T-2 thread, incl. Adapter #3
38.5 T-2(i) T-2(a) M34(i) out #3
# 1C
Prism Diagonal T-2 / 90°, 32mm (suitable for Maxbright Bino), incl. Adapter #3
35 T-2(i) T-2(a) M34(i) out #3
# 2
T-2 / 90° Baader Roof-Prism (Astro-Quality-Grade), with male/female T-2 thread, incl. Adapter #3
47.5 T-2(i) T-2(a) M34(i) out #3
# 3
Adapter 36,4a / T-2a (direct T-2 photo-thread for Vixen, NexStar4, Meade a.o. focusers)
0.5 M36.4 x 1(a) T-2(a) M34(i)
# 4A Glasspath Corrector 1.25 (incl. Teflon-centering) ≤ -30 ----- M34(a)/T-2 clamp Ø 38mm -----
# 4B Glasspath Corrector 1.70 (incl. Teflon-centering) -65 ----- M34(a)/T-2 clamp Ø 38mm -----
# 4c Glasspath Corrector 2.60 (incl. Teflon-centering) -120 ----- M34(a)/T-2 Kclamp Ø 38mm -----
# 5 1¼" Extension Tube / 1¼" Glasspath Corrector 18.5 M28(i) M28(a) Ø 26mm(i)
# 6
T-2 Quick Changer (combines Zeiss Micro bajonett with T-2 female thread) Standard Version
11 T-2(i) Ring-clamp -----
# 6A Baader TQC Heavy Duty T-2 QuickChanger 11 T-2(i) Ring-clamp -----
# 7 Baader TCR Hardened Steel T-2 ChangeRing 4 Ring-clamp T-2(a) Ø 38mm
# 6+7 T-2 Changer System (Combination of #6 & #7) 15 T-2(i) T-2(a) Ring-clamp
# 6A+7 TQC/TCR Heavy Duty Changer System (Combination of #6 & #7) 15 T-2(i) T-2(a) Ring-clamp
# 8
Click-Lock Eyepiece Clamp 1¼" (with built in diopter-adjustment)
32-38 T-2(i) Ø 1¼"(i) T-2(a)
# 8A
Focusing Eyepiece Holder 1¼"/T-2 with 3 clamping screws
Fine focussing (5mm focus travel)
Rotation Locking Screw
29-34 T-2(i) Ø 1¼"(i) -----
# 9
Adapter M44 (i) / T-2 (i) (combo of Zeiss M44 female and T-2 female thread)
14 T-2(i) M44 x 1(i) Ø 40mm
# 10 Reducer 1¼" / 24.5mm – for 24.5mm eyepieces 6.5 Ø 1¼"(a) Ø 24,5mm(i) M28,5(i)
# 11 Eyepiece Holder 1¼"/36.4 (a) fits 1¼" oculars onto Vixen thread M36.4 27 M36.4 x 1(a) Ø 1¼"(i) -----
# 12 T-2 / M43 x 0.75 Takahashi-Adapter 0,8 (!) M43(a) T-2(a) M34(i) for #4a,b,c
# 13 External Thread M44(a) / T-2(a) – for Zeiss 5 M44 x 1(i) T-2(a) Ø 38mm
# 14 Nose piece 1¼"(a) / T-2(a) – with safety groove 0,5 Ø 1¼"(a) T-2(a) M34(i) / M28,5(i)
# 15 Reducer 2" / 1¼" – with clamping ring, T-2 thread and M48 filter thread 9 Ø 2"(a) Ø 1¼"(i) M48(i) / T-2(a/i) / M34(i)
# 15A Pushfix 2" / 1¼" reducer for Newton focuser 1 Ø 2"(a) Ø 1¼"(i) M48(i) / T-2(i)
# 15B Baader 2" to 1¼" ClickLock reducer 9,5 Ø 2"(a) Ø 1¼"(i) M48(i) / T-2(i)
# 16 Nosepiece connection 2"(a) / T-2(a) and with safety groove. M48 filter thread 2 Ø 2"(a) T-2(a) M48(i/a) / T-2(i)
# 17 2" SC Deluxe eyepiece 53 UNC 2"(i) Ø 2"(i) / S65 M58(i)
# 17A+B 2" SC Deluxe eyepiece with 2" filter holder (for SC & HD) 53 UNC 2"(i) Ø 2"(i) / S65 2" Filter Thread / M58
# 18 3.3" Celestron Nut for C11/C14 (ring clamp #17) 0 UNC 3.3"(i) ----- -----
# 19 2" Barrel, chrome, with Teflon spacer rings 0 Ø 2"(a) UNC 2"(a) M48(i)
# 20 Alan Gee Telecompressor II ≈≤ 50 T-2 clamp T-2 clamp -----
# 21 Baader T-Adapter (BTA) for all SC and MAK telescopes 16 UNC 2"(i) T-2(a) T-2(i)
# 21 B SC Ultrashort T-Adapter with a 7mm optical length, T-2 (a) / 2"(i) 7 UNC 2"(i) T-2(a) T-2(i)
# 22 Thread adapter M43(a) / T-2(a) – Vixen-Adapter 2,5 M43 x 1(a) T-2(a) Ø 38mm
# 23 Thread adaptor M42x1(i) / T-2(a) – "Russian"-Adapter 7 M42 x 1(i) T-2(a) Ø 38mm
# 24 T-2 Sliding / Locking Focuser 1¼"(i) and T-2(i) – Hub 11mm 27.5+11,0 T-2(i) T-2(a) Ø 1¼"(i)
# 25A T-2 intermediate ring 15mm T-2(i) / T-2(a) 15 T-2(i) T-2(a) Ø 38mm
# 25B T-2 intermediate ring 40mm T-2(i) / T-2(a) 40 T-2(i) T-2(a) Ø 38mm
# 25C T-2 intermediate ring 7.5mm T-2(i) / T-2(a) 7.5 T-2(i) T-2(a) Ø 38mm
# 25V Baader VariLock 46 extension Tube 29-46mm with spanner tool min. 29 / max. 46 T-2(i) T-2(a) T-Adapter
# 25Y Baader VariLock 29 extension tube 20-29mm with spanner tool min. 20/ max. 29 T-2(i) T-2(a) T-Adapter
# 26 T-2/T-2 Inverter ring – changes T-2(i) in T-2(a) 0 T-2(a) T-2(a) Ø 38mm
# 27 Thread adaptor 2"(a) / T-2(a) – with M48 thread for 2" Filter 0.5 UNC 2"(a) T-2(a) M48(i)
# 28 Expanding ring T-2(i) / 2"(a) 1 T-2(i) Ø 2"(a) -----
# 29 Threaded ring M48(a) / T-2(i) 2.5 T-2(i) M48(a) -----
# 30 CCD Collar1¼" (Focus stop ring for CCD cameras, etc.) ≤ 10 Ø 1¼"(i) Ø 1¼"(i) -----
# 31 T-2 eyepiece filter holder 0 T-2(a) T-2(a) M28.5(i)
# 32 Eyepiece Ultrashort 2" (on both sides) for Zeiss (M68) 17 M68 x 1 Ø 2"(i) M68 x 1
# 33 Variable extension (12-16mm) incl. lock ring (= #26+34+35) 12 (10) T-2(a/i) T-2(a/i) -----
# 34 T-2 conversion ring (converts T-2(a) external thread in T-2 (i) internal thread) 10 T-2(i) T-2(i) -----
# 35 T-2 locking ring 2 T-2(i) T-2(i) -----
