Optolong O III 12nm RkBlog Filters Filtr wąskopasmowy. Sizes: 1,25", 2" Features: Bandpass / Narrowband Vendor: Optolong Filter spectrum On the internet Search on cloudynights Search on Google Search in Google Images Search on flickr.com
Filtr wąskopasmowy. Sizes: 1,25", 2" Features: Bandpass / Narrowband Vendor: Optolong Filter spectrum On the internet Search on cloudynights Search on Google Search in Google Images Search on flickr.com