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Steplessly variable diaphragm 13 - 113mm
- Manufacturer: Baader Planetarium
- UPC: 4047825008459
- MPN: IRIS
- SKU: IRIS
- Last price was: $397.00
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Availability: Backorder
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- Steplessly variable, white anodized and heat reflecting diaphragm from 13- to 113 Millimeter for our D-ERF Filters
- For optimum adjustment of a telescope aperture when observing with an H-alpha filter from Solar Spectrum (also suitable for other brands)
- The diaphragm has four telescope-sided M3-threads on a pitch circle radius of 60 mm to fasten also on a DIY-holder.