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SKU S11220 UPC 050234112208 Optical Info Optical Design Newtonian Mirror Coatings 94% Aluminum Glass Type Borosilicate True Aperture (mm) 257 Primary Aperture (mm) 254 F/Ratio 4 Focal Length (mm) 1000 Secondary Diameter 89mm Secondary Obstruction (by diameter) 35% Secondary Obstruction by Area 12% Observational Info Dawes Limit 0
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91 in) Number of Lens Elements 6 Optical Coatings Fully Multi Coated Parfocal Eyepieces Yes Weight 1 lb 13
Pub Date: November 30
M48 Pentax K-mount T-Ring Solar SKU S11220 UPC 050234112208 OpticalT Ring to convert your Pentax K Mount camera mount to a standard 48mm thread for attachment to various astronomy accessories Fits all Pentax K Mount cameras M48 female thread has a diameter of 48mm and a thread pitch of 0. 75mm Compatible with wide format 48mm T threaded accessories only NOT for use with the smaller, more common standard 42mm T threaded adapters and accessories which have an M42x0. 75 thread (42mm diameter x 0. 75mm pitch) CNC
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