Amateur Photographer & Cinematographer (1934)

March 7th, 1934 fHi AMATEUR PHOTOGRAPHER p 6 CINEMATOGRAPHER a other subjects which it is inadvisable to take. These include the queues of people waiting for food or for kerosene. The town populations, at any rate, are ardently pro-Soviet, and would resent pictures which might be taken abroad and used as antiSoviet propaganda. The Serial Number. Cameras are the subject of a little worry at some frontiers, but in Soviet Russia they seem to be regarded as very suspicious instru¬ ments indeed. On entry through the Customs barrier the serial number of a camera is taken, and recorded on tire passport. On leaving the country one is allowed only to take out the camera whose number was recorded on entry. If a camera has twin lenses it is as well to declare both lenses. A recently returned traveller from Russia recounted an amusing experience in our hearing. He had with him a little Ensignette, which was second-hand when he got it, fifteen years ago, and had long been innocent of any serial number. This instrument was close¬ ly scrutinised by the Customs officials, who did not know what to put down. At last some markings caught one bright eye, namely, the stop numbers, and the camera was officially entered as “No. f/8 f/n f/16 f/32 ’’ ! _ The Electric Pointer. A little electric pointer which, held in the hand of the lecturer, flashes an arrow on any particular point on the screen, is coming much into favour in various societies and insti¬ tutions where lectures are frequently held. It does away with the in¬ convenient billiards cue, which crashes on the floor periodically. The illuminated arrow looks very jolly pointing out this and that, and sometimes, when the lecturer forgets about it, gyrating on the ceiling or over the faces of the audience. Some societies also have a mirror at the lecture desk so that the lecturer is under no obligation to turn round to see what picture is on the screen. At the Royal Society of Medicine they have a miniature traffic signal, which flashes green, amber, and red, to warn speakers of the passage of time. TThe A.mateur P hotographer ” Exposure TABLE-March 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/11 is used. For f/16 give four times the exposure. For f/5.6 give half. From 9 to 10 a.m. or from 2 to 3 p.m., double these exposures. From 7 to 9 a.m. or from 3 to 5 p.m., treble them. Subject. Ordinary Plate. Medium Plate. Rapid Plate. Extra Rapid Plate. Ultra Rapid Plate. 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, snow scenes with no heavy foreground . . 1/12 * * 1/18 * y 1/35 y y 1/50 y y 1/60 yy Ordinary landscapes and landscapes with snow, open river scenery, figure studies in the open, light buildings, wet street scenes 1/5 y y 1/8 y y 1/15 y y 1/20 y y 1/25 yy Landscapes in fog or mist, or with strong foreground, well-lighted street scenes . . 1/4 y y 1/6 y y 1/12 y y 1/15 y y 1/20 y y Buildings or trees occupying greater portion of picture 1/2 y * 1/4 y y 1/5 yy 1/6 y y 1/8 y y Portraits or groups taken out of doors, not too much shut in by buildings . . n y * 1 y y 1/2 y > 1/3 y y 1/4 y y Portraits in well-lighted room, light sur¬ roundings, big window, white reflector . . 5 secs. 4 secs. 2 secs. n y y 1 y y 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. Criterion, Enelite. 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. Hauff, Ultra Rapid. „ Ulcroma. „ Ultra Roll Film and Pack. Herzog, Ortho-Isodux Film Pack. Ilford, Golden Iso-Zenith. „ Iso-Zenith. „ Hypersensitive Pan. Plates and Films. „ Portrait Film (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. „ Eclipse Pan. Soft. Kodak, Verichrome Film. Marion, Record. „ Iso Record. Selo, Selochrome Roll Film and Film Pack. ,, Selo. Pan. Roll Film. Standard, Film. Wellington, Anti-screen. ,. X Press. Zeiss Ikon, Pemox Roll Film and Packs. Extra Rapid. Agfa, Chromo. ,, ,, Isolar. „ Extra Rapid. ,, Isolar. „ Iso Rapid. ,, ,, ,, Chromo. ,, Roll Film. Barnet, S.R. Pan. „ Studio Ortho. Criterion, Iso E.R. „ Portrait. ,, Roll Film. „ Special E.R. Ensign, Roll Film. Gevaert, Filtered Ortho. „ Chromosa. „ S.R. „ Regular Cut Film. Hauff, Analo-Flavin. „ Extra Rapid. „ E.R. Ortho. „ Roll Film and Pack. Ilford, Auto. Filter. ,, S.R. Pan. „ Pan. Film. ,, Raoid 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. Criterion, Extra Rapid. Hauff, Ortho Anti-Halo. Ilford, Screened Chromatic. „ S.R. „ Commercial Ortho F ilm. Imperial, Non-Filter. „ S.R. ,, S.R. Ortho. Kodak, Cut Film. Lumiere, Extra Rapide. „ Instantan^e. ,, Pelliculaire. Medium. Ilford, Empress. ,, Chromatic. Ordinary. Barnet, Ordinary. Criterion, Ordinary. ,, Ordinary Iso. Gevaert, Ordinary. Ilford, Ordinary. „ Rapid Process Pan. Imperial, Ordinary. „ Pan. Process. 208 6