Optolong L-Ultimate 2" Dual Bandpass Filter
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For Sale: Optolong L-Ultimate 2" Dual bandpass Light Pollution Reduction Imaging Filter.
Asking $310, new cost $419 plus tax.
Price includes shipping by USPS to the CONUS only.
Accept Paypal, add 3% for fee or use Friends and family. I also accept Zelle.
Thanks for looking.
Specifications
- Substrate: Optical Glass
- Size: 2" mounted (M48x0.75 thread)
- Thickness: 1.85mm
- FWHM: OIII 3nm, Ha 3nm
- Blocking Range: 300-1000nm
- Blocking: OD4
- Surface quality: 60/40
- Transmitted Wavefront RMS: λ/4
- Parallelism: 30 seconds
Asking $310, new cost $419 plus tax.
Price includes shipping by USPS to the CONUS only.
Accept Paypal, add 3% for fee or use Friends and family. I also accept Zelle.
Thanks for looking.
Funding Member
