Frameless Filter Installation; Installation With Framed Filters - QHYCCD QHYCFW3 Manual

Third generation filter wheel connection QHY174/178/290/21/22/23 Instructions:
This description applies to QHY174, QHY178, QHY290, QHY21/22/23 connection filter wheel
The third generation filter wheel filter wheel mounting adapter ring is installed inside the filter
wheel. To avoid cumbersome, we have already installed it at the time of shipment.
The first step is to install the filter: the medium filter wheel standard version and the thin plate have
5 holes 2 inches and 7 holes 36mm two models of the wheel, the filter is mainly divided into
frameless lenses and framed lenses.

Frameless filter installation:

1. First, we unscrew the eight screws on the back of the filter wheel and open the filter wheel.
2. We put the frameless filter on the hole of the filter disc. We need the spacer to be placed in the
three circular grooves around the filter. The number of the spacer depends on the thickness of the
filter. Keep the gasket and filter thickness consistent. For example, a 0.5mm lens requires only a
∮2*4 red spacer (0.5mm thick), and a slightly larger spacer is placed over the placed spacer to cover
the edge of the filter. . To push a 1mm lens like this, you need 2 ∮ 2*4 red gasket gaskets. However,
the 2mm lens does not need to be padded, just use a slightly larger spacer to fix it.
3. Finally align the hole of the gasket with the standard lens fixing screw and tighten with a Phillips
screwdriver. Install the filter in turn using the above method, and you can successfully install the
filter on the filter tray.

Installation with framed filters:

1. First, we unscrew the eight screws on the back of the filter wheel and open the filter wheel.
2. Framed filter is installed with special screws made of M2 screw with gasket and M2 screw guide.
The standard 7mm requires two spacers, and the other can adjust the number of spacers and the
number of guide posts according to the height of the frame. Thereby achieving the desired result.
3. Place the screw with the spacer into the three grooves around the filter and tighten the screws.
Install in order until the installation is complete.