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--- public:catalinas:lemmon:schulman_32:focus_positions [2023/08/24 11:21]
tdeyoe
+++ public:catalinas:lemmon:schulman_32:focus_positions [2024/09/05 00:39] (current)
tdeyoe [Focus Positions]
@@ Line 1: / Line 1: @@
 ======Focus Positions and Mounting======
+Quick Ref: Focuser: **70,000** Camera: **32,000**.
 In this document will be the current focus positions and configurations for cameras and eyepieces on the Schulman Telescope.
+====Mounting====
+Our camera and eyepiece focuser are mounted directly to the telescope rotator and fastened with 4 thumb screws. These screws should be placed ever 3 positions along the bracket.
 =====Main Camera (SBIG AC4040BSI)=====
-====Mounting====
+====Balance Position====
-Our main is mounted directly to the telescope rotator and fastened with 4 thumb screws. These screws should be placed ever 3 positions along the bracket.
+With the main camera on there are no additional weight needs to achieve balance. Confirm that the back of the telescope looks like the below:
-There are two spacers, one 1" and the second 1.25" between the mounting plate and the camera itself. These are threaded together (rather tightly) and are electrical taped so as to not unthread. These spacers should not be removed or replaced unless absolutely required.
+**Image of Schulman back with camera**
 ====Focus Position====
-Our main camera uses [  ] and [  ] in spacers from the mounting point and achieves focus just around **32000** counts in the FocusPro.
+Our main camera achieves focus just around **32,000** counts in Maestro4.
 =====Focuser (FeatherTouch)=====
-====Mounting====
+====Balance Position====
-The focuser, unlike the Main Camera, does not require any special rotator for mounting though it is recommended to mount it such that the focus knobs face down when viewed at the park position.
+The focuser is considered balanced when the two ~5lbs weights are mounted on either side of the rotator. They are each marked and labelled and can be seen below:
+{{:public:catalinas:lemmon:schulman_32:eyepiece_back.jpg?400|}}
 ====Focus Positions====
@@ Line 25: / Line 32: @@
 ===Eyepieces===
-The Focuser uses no spacers (reconfigurable spacers that is) from the mounting point and achieves focus at **70,000** counts in FocusPro. The position of 25,000 was selected so focus is right at the middle of travel on the FeatherTouch focuser using a TeleVue 31mm eyepiece.
+The Focuser uses no spacers (reconfigurable spacers that is) from the mounting point and achieves focus at **70,000** counts in Maestro4. That position was selected so focus is right at the middle of travel on the FeatherTouch focuser using a TeleVue 31mm eyepiece.
 //**NOTE: Focus is only achieved at 70,000 when both the diagonal AND rotator ring are attached** //
@@ Line 34: / Line 41: @@
 ===Planetary Camera (ZWO with ADC)===
-To use a Planetary camera, specifically our ZWO ASI183MC with ADC, remove the diagonal from the telescope (just like with a DSLR) and attach directly using the 2in adapter that is already mounted to the Planetary Camera. The camera will focus around **~~~** counts.
+To use a Planetary camera, specifically our ZWO ASI183MC with ADC, remove the diagonal from the telescope (just like with a DSLR) and attach directly using the 2in adapter that is already mounted to the Planetary Camera. The camera will focus around **26,000** counts.
 =====Other=====

MOON

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