Differences

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--- en:ost:fokus_new [2022/10/27 08:38] – [General remarks] rhainich
+++ en:ost:fokus_new [2025/02/06 15:01] (current) – [General remarks] rhainich
@@ Line 9: / Line 9: @@
 ++++ Calculation of the ideal adapter |
-The back focus of the telescope is 147 mm (behind the EFA). The eyepiece clamp used has a back focus of 12.5 mm. The length of the ideal adapter ''D'' is therefore calculated as follows:
+The back focus of the telescope is 147 mm (behind the EFA). The Zeiss quick changer used has a back focus of 25 mm. The length of the ideal adapter ''D'' is therefore calculated as follows:
-   D = 147 − 12,5 − 33/2 - C,
+   D = 147 − 25 − 33/2 - C,
-where ''C'' is the backfocus of the respective instrument. The STF-8300 together with all attachments has a backfocus of 57.5 mm. Therefore, the ideal adapter for the STF-8300 is 60mm long.
+where ''C'' is the backfocus of the respective instrument. The STF-8300 together with all attachments has a backfocus of 57.5 mm. Therefore, the ideal adapter for the STF-8300 is 50mm long.
 ++++
@@ Line 21: / Line 21: @@
 ^ Instrument               ^  Adapter [mm]  ^  Position of the EFA [μm]  ^
 | QHY600M                   |  20+10  |  16900  |
-| SFT-8300                  |  20+10  |  9500   |
+| SFT-8300                  |  40+10  |  9500   |
 | Canon 700D                |  20+10  |  13000  |
 | Baches + QHY268M          |  10     |  15000  |
-| Baches + QHY268M + Barlow |  10     |  27000  |
+| Baches + QHY268M + Barlow |  20     |  17500  |
-| DADOS + QHY268M           |  10     |   7000  |
+| DADOS + QHY268M           |   0     |  5000   |
 | Hyperionokular: 36mm      |  80     |  14500  |
 | Hyperionokular: 22mm      |  80     |         |