Amateur Photographer & Cinematographer (1935)

May ist, 1935 The AMATEUR PHOTOGRAPHER n 6 CINEMATOGRAPHER a HE AMATEUR PHOTOGRAPHER EXPOSURE TABLE MAY EVERY MONTH a brief exposure table will be provided for the assistance of our readers in their practical work. A glance at the current approximate exposures as here given will serve as a reliable guide for most purposes. The subjects will be varied to suit the time of year. The following exposures will serve as a working guide for any fine day during the month, between the hours of 10 in the morning and 2 in the afternoon, with the sun shining, but not necessarily on the subject. Stop used, f/8. The exposure should be doubled if the sun is obscured, or if stop f/u is used. For f/16 give four times the exposure. For f/5.6 give half. From 8 to 10 a.m. or from 2 to 4 p.m., double these exposures. From 6 to 8 a.m. or from 4 to 6 p.m., treble them. N.B. — The times given above are by “ sun time.” The exposures , therefore, which are laid down as suitable for 2 to 4 p.m., for instance, will be those to be given between 3 and 5 p.m., by the clock, during “ summer time , SuBJ ECT. Ordinary. Medium. Rapid. Extra Rapid. Ultra Rapid. Open seascapes and cloud studies . . 1/30 sec. 1/45 sec. 1/90 sec. 1/120 sec. 1/150 sec. Open landscapes with no very heavy shadows in foreground, shipping studies or seascapes with rocks, beach scenes 1/18 * » 1/30 J 1 1/50 * J 1/70 ** 1/90 * t Ordinary landscapes with not too much foliage, open river scenery, figure studies in the open, light buildings, wet street scenes 1/10 * f 1/15 » * 1/30 * * 1/40 * t 1/50 »t Landscapes in fog or mist, or with strong foreground, well-lighted street scenes . . 1/8 * » 1/12 * f 1/25 f 1 1/30 * f 1/40 * * Buildings or trees occupying greater portion of picture 1/4 * f 1/6 * * 1/10 * » 1/15 * * 1/20 1 f Portraits or groups taken out of doors, not too much shut in by buildings . . 1 f * 2/3 9 1 1/3 * * 1/4 1/5 tt Portraits in well-lighted room, light sur¬ roundings, big window, white reflector . . * 4 secs. 3 secs. H 5 5 1 * * 3/4 f t As a further guide we append a list of some of the best known makes of plates and films on the market. They have been divided into groups, which approximately indicate the speeds referred to above. The hypersensitive panchromatic plates and films require less exposure than the ultra-rapid. Ultra Rapid. Agfa, Special Portrait. ,, Super Pan. Film ,, Super-speed Film. „ Isochrom Film. „ Ultra Special. Barnet, Press and Super Press. ,, XL Super-speed Ortho. ,, Soft Panchromatic. „ Studio Fast. „ Ultra Rapid. Eastman, Par Speed Cut Film. ,, S.S. Cut Film. „ S.S. Pan. Film. Gevaert, Super Sensima. „ Sensima Fast. „ Sensima Ortho. „ Super Chromosa. ,, Roll Films and Packs. Ilford, Golden Iso-Zenith. Iso-Zenith. Hypersensitive Pan. Plates and Films. Portrait F ilm (Ortho Fast). Monarch. Press S.S. Ex . Sens. Zenith Ex. Sens. S.G. Pan. Illingworth, Fleet. „ Super Fleet. ,, Super Fleet Ortho. ,, Pan. Fleet. Imperial, S.S.S. Press Ortho. ,, Eclipse. „ Eclipse Ortho Soft. „ Eclipse Soft. „ Eclipse Ortho. Imperial, Eclipse Pan. Soft. Kodak, Verichrome Film. Marion, Record. ,, Iso Record. Selo, Selochrome Roll Film and Film Pack. ,, Selo. Pan. Roll Film. Voigtlander, Jllustra Film. Wellington, Anti-screen. ,, X Press. Zeiss Ikon, Pernox Roll Film and Packs. Extra Rapid. Agfa, Chromo. „ Isolar. Extra Rapid. Isolar. Iso Rapid. ,, „ Chromo. Roll Film. Barnet, S.R. Pan. „ Studio Ortho. Ensign, Roll Film. Gevaert, Filtered Ortho. Chromosa. „ S.R. ,, Regular Cut Film. Ilford, Auto. Filter. „ S.R. Pan. ,, Pan. Film. ,, Rapid Chromatic. Imperial, Non-filter (new series). „ Eclipse Pan. B. „ S.S. Ortho. Kodak, Roll Film and Film Pack. Paths, Roll Film. Selo, Roll Film. Zeiss Ikon, Roll Film and Film Pack. Rapid. Barnet, S.R. ,, Self-screen Ortho. Ilford, Screen Chromatic. „ S.R. ,, Commercial Ortho. Film. Imperial, Non-Filter. S R ,, S.R. Ortho. Kodak, Cut Film. Medium. Ilford, Empress. ,, Chromatic. Ordinary. Barnet, Ordinary. Gevaert, Ordinary. Ilford, Ordinary. „ Rapid Process Pan. Imperial, Ordinary. ,, Pan. Process. THE WEEK’S MEETINGS Societies will have their meetings announced here if the syllabus Wednesday, May 1st. Bayswater and Paddington P.S. Springtime Competition. Croydon C.C. Chloro-Bromide Papers. R. R. Rawkins. Thursday, May 2nd. Hammersmith H.H.P.S. Private View of Annual Exhibition. N. Middlesex P.S. Competitions. Members* Queries. Friday, May 3rd. Photomicrographic Society. Annual General Meeting and Members* Evening. Royal P.S. Informal Meeting of Pictorial Group. Southend-on-Sea and D.P.S. A Talk on the Manufacture of Films. W. R. Smith, Saturday, May 4th. Cheltenham A.P.S. Members’ Exhibition Opens. Sunday, May 5th. Hanley P.S. Market Drayton. is sent to us at the beginning of the session or from time to time, Monday, May 6th. Hackney P.S. Ayot and Wheathampstead. Oxford P.S. Annual General Meeting. Staines P.S. “ Composition." C. J. Beese. Walthamstow and D.P.S. Talk on the Exhibition. Tuesday, May 7th. Hackney P.S. “ Three Twenties.” Messrs. Rose, Selfe and Thurley Halifax P.S. Annual Meeting. Nelson C.C. Photographic Auction. Royal P.S. “ Germany Revisited.” J. Dudley Johnston. Wednesday, May 8th. N. Middlesex P.S. Night Outing — Floodlighting. Stockport P.S. Sale of Surplus Equipment. Whitehall C.S. Films by London Amateur Film Club, 4X2 35