M68 EXTENSION TUBE - 15mm William Optics the Delta Rho 350 is

the Delta Rho 350 is the capable of capturing the most stunning astrophotographs possible

to bring the ABSOLUTE 10Micron HPS-accuracy straight into the ground – without compromise

The PE grade series is designed for professional research studies and applications in which precision homogeneity and on-band transmittance values across the substrate surface are required

25″ Super Plossl 10mm (190x) – apparent field of view 52°

2 per side

M68 EXTENSION TUBE - 15mm William Optics the Delta Rho 350 isThis 15mm M68 extension tube features a male M68 x 1 thread on one end and a female M68 x 1 thread on the other. This is a very useful accessory for making up the exact backfocus distance required by correctors. Specifications Connection side A Male M68 x 1 Connection side B Female M68 x 1 Optical length 15 mm SKU AX M68 EXT15