Instruction Manuals

IDAS M42 OL7.5 Instruction Manual (Web Edition)

Interactive web instruction manual for the IDAS M42 OL7.5 filter mount.

IDAS M54 OL7.5 Instruction Manual (Web Edition)

Interactive web instruction manual for the IDAS M54 OL7.5 filter mount.

AD42-DS Installation Guide

This adapter is designed to fit IDAS DS filters into drop-in drawer slots like those made by ZWO.

[Procedure]
Gently slide the filter into the adapter frame until it clicks securely into place before inserting it into your telescope's optical path.

AD19.4 Installation Guide

Dedicated adapter ring to mount IDAS Di2 filters inside Celestron RASA 8-inch systems.

[Procedure]
1. Loosen the lock collar on the front corrector lens of RASA8 and remove the default adapter.
2. Mount the Di2 filter inside the AD19.4 ring and thread it carefully onto the RASA8 telescope assembly.

DRT System Installation Guide

Instruction manual for filters fitted with the Drop-in Rotation (DRT) mount mechanism.

[Handling]
Allows you to rotate the filter body within its holder slot to adjust light leakage or image angles. Hold the frame edges strictly to prevent touching the optical surfaces.

DZ-framed Filter Installation Guide

Large 47mm effective aperture filters designed for ZWO filter drawers (FD-M54-II, FD-M42-II) and compatible sliders.

[Procedure]
1. Thread the DZ filter frame firmly into the ZWO drawer holder without over-tightening.
2. Slide the holder straight into the mount adapter slot.
*Larger than typical M48 filters (43mm), minimizing vignetting on full-frame sensors.

ZF Filter Installation Guide

How to install the ZF-series filters directly inside ZWO M42 male-threaded mount cameras.

[Procedure]
1. Equip the camera M42 mount with a ZWO-exclusive T-ring (or spacer).
2. Drop the ZF filter flatly and slowly inside the T-ring opening.
3. Screw the eyepiece sleeve over the T-ring to secure it.
[Removal]
Remove the T-ring and tilt the camera gently over a soft surface (like a microfiber cloth) to let the filter drop safely.

RP Mount Installation Guide

Instructions for mounting IDAS filters inside Canon EOS RP mirrorless cameras.

[Procedure]
Position the RP filter frame into the space right in front of the image sensor using the provided installation tool. Use absolute care not to touch the shutter curtains or optical glass.

R Mount Installation Guide

Instructions for mounting IDAS filters inside Canon EOS R and astrophotography-dedicated EOS Ra cameras.

[Procedure]
Secure the filter frame into the sensor-front slot. When removing, use the provided suction tool or custom remover tool to avoid scratching the optical glass.

R5 Mount Installation Guide

Installation guide for internal body filters on Canon EOS R5 and R6 cameras.

[Caution]
Engineered with a specific frame thickness to bypass interferences with the In-body Image Stabilizer (IBIS) sensor unit. Press firmly and align accurately within the mount ridges.

M Mount Installation Guide

Filters mounted to the rear glass element of EF lenses, used via adapter on EOS M cameras.

[Procedure]
Gently thread or snap the filter onto the rear baffle ring of compatible EF lenses. Verify lens thread compatibility before attempting installation.

CA Mount Installation Guide

Instructions for clip-on filters mounted inside Canon EF mount DSLR camera bodies.

[Procedure]
Slide the filter flatly into the mirror box chamber and secure it with the corner clips. Make sure it does not interfere with the movement range of the quick-return mirror on full-frame DSLRs.

DRE Mount Installation Guide

Guide for inserting DRE filters into drop-in filter holders (like EF-EOS R drop-in filter adapters or compatible Meike frames).

[Procedure]
Thread the DRE filter into the inner threads of the slider insert frame and push the slider into the adapter slot. Ensure dust-free conditions during installation.

DR / DR25 Mount Installation Guide

Guide for drop-in filter holders (DR and DR25 series) mounted in the telescope optical train.

[Handling]
Screw the filter into the corresponding holder frame. If it features a rotation mechanism, avoid rubbing the filter surface during adjustments.

Recommended Optical Filter Cleaning Guide

Instructions for maintaining and clean-wiping high-performance coated interference filters.

[Cleaning Method]
1. Use an air blower to remove hard dust particles.
2. Apply a few drops of anhydrous alcohol or lens cleaner to a lens paper.
3. Wipe gently from the center outward in a circular motion. Scrubbing repeatedly in the same spot is strictly forbidden as it may damage the coating.