Page 7 Advertisements Column 1

Hawke's Bay Herald-Tribune, Volume 81, Issue 35, 4 November 1937, Page 7

Six times as fast as ihe fastest ean-did-camera' lenses, a new telescope eye in nse at the Monnt Wilson, California (TJ.S.A.), observatory has photographed nebnlae so djm that they are 30,000 times fainter than the dnllest visiblo star. The new Jeng, xised in conjunction wits the observatory rs 100-inch telescope, is said to be the fastest in the world. It has an optical speed of F/0.59,' whereas the largest aperture in use on the modern high-speed miniatur© camera is E/1.5, a difference of 600 per cent. The light reflected from th'e big 8 l-3rd. foot telescope mirror is concentrated by the new lens into an image only two twenty-fifths of .an inch long. little light reaches the filtn, in taking pictures of the nebnlae ev'on with tho highspeed lens, that an exposuro "as long as • sixty hours in necessary tq take the photograph.

YOUR SNAP MAY WIN £2 2/ENTRY IS FREE. Bring your snaps to us for Developing and Printing. Pour-hour service. Crisp, ^ clear prints on Velox Paper, Each film developed. and printed by us automaltically enters our Best Snap OompetitiOu freo. Prizes £2 2/-, £1 1/- and 10/-. ALAN GRANT PHARMACY 'Phone 4161. HASTINGS. 5 ANIT ATION a on the Farm , Every farmer owes it to himself and his household to inspect the . - . . . . "ELSAN" (Indoor) Convenience Por further particulars apply McLEOD & GARDNER No Septic Tank needed I LTD, Timber Merchants. Market St., £g in/. DW tax HASTINGS. ' * *