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Model: mas_1.25_mbl_1_5xPart Number: MBL-15
These Masuyama Barlows are designed and manufactured by Ohi Kohki Co., Ltd. in Japan.
Manufactured using premium fully multicoated optical glass and available in 1.5x or 2x Configurations
There was some confusion whether you could add a filter to the end of the barrel. You can't, but you simply fit filter to nose piece that inserts into it. It performs as expected.Unfortunately atmospheric seeing has been poor lately in southern parts of UK, so with my rig with C9.25 and ZWOASI290MM I may be pushing my rig passed what is possible. With 5x rule of pixels is probably used for perfect conditions. Next opportunity I will compare with and without barlow. Nice to be able to obtain a 1.5x barlow, they are not that common. .Overall good device.