IDAS DTD Dusk-to-Dawn Filter - 2" Mounted (M48)
IDAS
IDAS DTD (dusk to dawn) 2" Mounted (M48) Filter is an astronomy filter in 2" for cleaner astronomy data.
imaging-filter budget
Best Current Offer
Starizona
In stock
Specifications
Filter
- Filter type
- Broadband light-pollution filter
- Filter size
- 2" / Mounted / M48
Spectral
- Passbands
- Imaging passband specified by filter model
Use
- Camera use
- Color or mono astronomy cameras, depending on target and workflow
Astrophotography Fit
A supporting filter that should match the camera, telescope speed, and target type.
IDAS DTD (dusk to dawn) 2" Mounted (M48) Filter is a budget-friendly astronomy filter (2").
A supporting filter that should match the camera, telescope speed, and target type.
Choose filter size around the sensor diagonal, telescope speed, and filter-wheel or drawer geometry. Flats are still required; a filter can improve contrast, but it will not rescue tilt, bad focus, or poor calibration.
Best paired with
- Cameras and filter holders with the same physical size
- Targets that match the passband
- A calibration workflow that includes flats after filter changes
Not recommended for
- Using as a fix for poor focus, tracking, or gradients
- Filter sizes smaller than the illuminated sensor path
- Targets outside the filter passband
Where To Buy
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| Retailer | Price | Availability | View Offer |
|---|---|---|---|
| Starizona Starizona | $218.00 | In stock Updated 5/15/2026 | View Offer - $218.00 |