Amateur Photographer & Cinematographer (1936)

December 2nd, 1936 iHi AMATEUR PHOTOGRAPHER 6 CINEMATOGRAPHER o The R.P.S. Exhibition of Cinematography The fourth exhibition of cinematography is now being held at the house of the Royal Photographic Society, 35, Russell Square, W.C.i. Opened on Saturday, November 28th, by the Hon. Anthony Asquith, it presents in a condensed form many phases of professional cin6 work and much that will appeal to the amateur cinematographer. This is particularly the case with the apparatus on view, as in every instance sub-standard cameras and projectors are shown. Practically every firm of note who specialises in these instruments and the accessories for use with them is repre¬ sented, and the visitor to whom this side of cinematography appeals will have much to interest him. In the main gallery, and in other rooms of the building, a very considerable display of " stills ” is to be seen. These include some hundreds of prints of episodes from well-known films that have been shown at the cinemas and a number of others from amateur films — some of the latter easily bear comparison with the professional productions. This year, the educational and documentary film is more in evidence than in previous years, while the cartoon film is illustrated in many phases of its remarkable process of con¬ struction, the examples of colour cartoon work being par¬ ticularly fascinating. Amateur colour cinematography is well emphasised in the exhibits, especially in the display by Kodak, Ltd., with Kodachrome, and in that by Ilford Ltd., with Dufaycolor. The following programme of meetings has been arranged during the course of the exhibition. Lectures and projection of both silent and sound films will be given. Friday, December 4th, 7 p.m. — Joint Meeting of Cin6 Group with Pictorial Group. Speaker, D. McMaster. Saturday, December 5th, 3 p.m. — Projection of Competition Films. Tuesday, December 8th, 7 p.m. — Programme arranged by The Association of Cin6 Technicians. Tuesday, December 8th, 7 p.m. — "A Professional Turns Amateur,” by Norman McLaren. ‘‘ Studio Lighting for Cinematography.” by Bryan Langley. Friday, December nth, 7 p.m. — Joint Meeting with Colour Group. Competition Colour Films. Saturday, December 12th, 3 p.m. — Criticism of Competition Films, by Basil Wright. Tuesday, December 15th, 7 p.m. — Presidential Address. The Present Position of Colour Cinematography.” By Dr. D. A. Spencer. Friday, December i8th, 7 p.m. — Joint Meeting with Pictorial Group. " The Slide Film,” by Oliver A. Minns. Saturday, December 19th, 3 p.m. — " The Story of the Cartoon Film,” by E. Anson Dyer. The Tuesday meetings are open only to Members of the Society. At all other times the exhibition is open to the public. Admission free on signing visitors’ book. The A mateur Photographer” EXPOSURE TABLE — December 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 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/ii is used. For f/i6 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 7 to 8 a.m. or from 4 to 5 p.m., treble them. Subject. Ordinary. Medium. Rapid. Extra Rapid. Ultra Rapid. Open seascapes and cloud studies . . 1/20 sec. 1/30 sec. 1/60 sec. 1/80 sec. 1/100 sec. Open landscapes with no very heavy shadows in foreground, shipping studies or seascapes with rocks, beach scenes . . 1/10 1/15 1/30 1/40 1/50 99 Ordinary landscapes with not too much foliage, open river scenery, figure studies in the open, light buildings, wet street scenes 1/4 1/6 1/12 1/15 1/20 99 Landscapes in fog or mist, or with strong foreground, well-lighted street scenes . . 1/3 1/4 1/10 » » 1/12 1/15 99 Buildings or trees occupying greater portion of pictures, river scenes with heavy foliage 3/4 >> 1/2 1/4 1/5 1/6 9 9 Portraits or groups taken out of doors, not too much shut in by buildings . . 2 secs. 1 1/2 1/3 99 Portraits in well-lighted room, light sur¬ roundings, big window, white reflector . . 6 5 secs. 3 secs. 2 secs. n 99 As a further guide we appetui a list of some of the best-known snakes 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. „ Isopan ISS 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. Ensign, Ultrachrome Film. Gevakrt, Super Sensima. ,, Sensima Fast. „ Sensima Ortho. „ Super Chromosa. „ Roll Films and Packs. Ilford, Golden Iso-Zeoith. Ilford, Iso-Zenith. .. Hypersensitive Pan. Plates and Films. „ Portrait Film (Ortho Fast). „ Monarch. ,, Press. „ 3. 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. Eclipse Pan. Soft. Kodak, Verichrome Film. „ Super Sensitive Pan. Film. „ Panatomic. Marion, Record. „ Iso Record. Nuro Film. Selo, Selochrome Roll Film and Film Pack. „ Selo. Pan. Roll Film. Voigtlander, Illustra Film. Wellington, Anti-screen. „ X Press. Zeiss Ikon, Pemox Roll Film and Packs. Extra Rapid. Agfa, Chromo. „ ,, Isolar. „ Extra Rapid. „ Isolar. „ Iso Rapid. Agfa, Iso Rapid Chromo. „ RoU 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. Pathe, 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. 555 8